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8329538: Accelerate P256 on x86_64 using Montgomery intrinsic

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Reviewed-by: ihse, ascarpino, sviswanathan
This commit is contained in:
Volodymyr Paprotski 2024-05-22 16:27:27 +00:00 • committed by Sandhya Viswanathan
parent 9ca90ccd6b
commit afed7d0b05
36 changed files with 2252 additions and 315 deletions
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12
make/jdk/src/classes/build/tools/intpoly/FieldGen.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -778,7 +778,7 @@ public class FieldGen {
result.appendLine("}"); result.appendLine("}");
result.appendLine("@Override"); result.appendLine("@Override");
result.appendLine("protected void mult(long[] a, long[] b, long[] r) {"); result.appendLine("protected int mult(long[] a, long[] b, long[] r) {");
result.incrIndent(); result.incrIndent();
for (int i = 0; i < 2 * params.getNumLimbs() - 1; i++) { for (int i = 0; i < 2 * params.getNumLimbs() - 1; i++) {
result.appendIndent(); result.appendIndent();
@ -804,6 +804,9 @@ public class FieldGen {
} }
} }
result.append(");\n"); result.append(");\n");
result.appendIndent();
result.append("return 0;");
result.appendLine();
result.decrIndent(); result.decrIndent();
result.appendLine("}"); result.appendLine("}");
@ -833,7 +836,7 @@ public class FieldGen {
// } // }
// } // }
result.appendLine("@Override"); result.appendLine("@Override");
result.appendLine("protected void square(long[] a, long[] r) {"); result.appendLine("protected int square(long[] a, long[] r) {");
result.incrIndent(); result.incrIndent();
for (int i = 0; i < 2 * params.getNumLimbs() - 1; i++) { for (int i = 0; i < 2 * params.getNumLimbs() - 1; i++) {
result.appendIndent(); result.appendIndent();
@ -874,6 +877,9 @@ public class FieldGen {
} }
} }
result.append(");\n"); result.append(");\n");
result.appendIndent();
result.append("return 0;");
result.appendLine();
result.decrIndent(); result.decrIndent();
result.appendLine("}"); result.appendLine("}");

2
make/test/BuildMicrobenchmark.gmk
View file

@ -109,6 +109,8 @@ $(eval $(call SetupJavaCompilation, BUILD_JDK_MICROBENCHMARK, \
--add-exports java.base/jdk.internal.vm=ALL-UNNAMED \ --add-exports java.base/jdk.internal.vm=ALL-UNNAMED \
--add-exports java.base/sun.invoke.util=ALL-UNNAMED \ --add-exports java.base/sun.invoke.util=ALL-UNNAMED \
--add-exports java.base/sun.security.util=ALL-UNNAMED \ --add-exports java.base/sun.security.util=ALL-UNNAMED \
--add-exports java.base/sun.security.util.math=ALL-UNNAMED \
--add-exports java.base/sun.security.util.math.intpoly=ALL-UNNAMED \
--enable-preview \ --enable-preview \
-XDsuppressNotes \ -XDsuppressNotes \
-processor org.openjdk.jmh.generators.BenchmarkProcessor, \ -processor org.openjdk.jmh.generators.BenchmarkProcessor, \

3
src/hotspot/cpu/x86/macroAssembler_x86.hpp
View file

@ -1549,6 +1549,8 @@ public:
Assembler::evpsrlvd(dst, mask, nds, src, merge, vector_len); Assembler::evpsrlvd(dst, mask, nds, src, merge, vector_len);
} }
} }
using Assembler::evpsrlq;
void evpsrlq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) { void evpsrlq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
if (!is_varshift) { if (!is_varshift) {
Assembler::evpsrlq(dst, mask, nds, src, merge, vector_len); Assembler::evpsrlq(dst, mask, nds, src, merge, vector_len);
@ -1570,6 +1572,7 @@ public:
Assembler::evpsravd(dst, mask, nds, src, merge, vector_len); Assembler::evpsravd(dst, mask, nds, src, merge, vector_len);
} }
} }
using Assembler::evpsraq;
void evpsraq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) { void evpsraq(XMMRegister dst, KRegister mask, XMMRegister nds, XMMRegister src, bool merge, int vector_len, bool is_varshift) {
if (!is_varshift) { if (!is_varshift) {
Assembler::evpsraq(dst, mask, nds, src, merge, vector_len); Assembler::evpsraq(dst, mask, nds, src, merge, vector_len);

5
src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
View file

@ -4255,6 +4255,11 @@ void StubGenerator::generate_compiler_stubs() {
StubRoutines::_poly1305_processBlocks = generate_poly1305_processBlocks(); StubRoutines::_poly1305_processBlocks = generate_poly1305_processBlocks();
} }
if (UseIntPolyIntrinsics) {
StubRoutines::_intpoly_montgomeryMult_P256 = generate_intpoly_montgomeryMult_P256();
StubRoutines::_intpoly_assign = generate_intpoly_assign();
}
if (UseMD5Intrinsics) { if (UseMD5Intrinsics) {
StubRoutines::_md5_implCompress = generate_md5_implCompress(false, "md5_implCompress"); StubRoutines::_md5_implCompress = generate_md5_implCompress(false, "md5_implCompress");
StubRoutines::_md5_implCompressMB = generate_md5_implCompress(true, "md5_implCompressMB"); StubRoutines::_md5_implCompressMB = generate_md5_implCompress(true, "md5_implCompressMB");

3
src/hotspot/cpu/x86/stubGenerator_x86_64.hpp
View file

@ -483,6 +483,9 @@ class StubGenerator: public StubCodeGenerator {
const XMMRegister P2L, const XMMRegister P2H, const XMMRegister P2L, const XMMRegister P2H,
const XMMRegister YTMP1, const Register rscratch); const XMMRegister YTMP1, const Register rscratch);
address generate_intpoly_montgomeryMult_P256();
address generate_intpoly_assign();
// BASE64 stubs // BASE64 stubs
address base64_shuffle_addr(); address base64_shuffle_addr();

0
src/hotspot/cpu/x86/stubGenerator_x86_64_poly.cpp → src/hotspot/cpu/x86/stubGenerator_x86_64_poly1305.cpp
View file

376
src/hotspot/cpu/x86/stubGenerator_x86_64_poly_mont.cpp Normal file
View file

@ -0,0 +1,376 @@
/*
* Copyright (c) 2024, Intel Corporation. All rights reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "macroAssembler_x86.hpp"
#include "stubGenerator_x86_64.hpp"
#define __ _masm->
ATTRIBUTE_ALIGNED(64) uint64_t MODULUS_P256[] = {
0x000fffffffffffffULL, 0x00000fffffffffffULL,
0x0000000000000000ULL, 0x0000001000000000ULL,
0x0000ffffffff0000ULL, 0x0000000000000000ULL,
0x0000000000000000ULL, 0x0000000000000000ULL
};
static address modulus_p256() {
return (address)MODULUS_P256;
}
ATTRIBUTE_ALIGNED(64) uint64_t P256_MASK52[] = {
0x000fffffffffffffULL, 0x000fffffffffffffULL,
0x000fffffffffffffULL, 0x000fffffffffffffULL,
0xffffffffffffffffULL, 0xffffffffffffffffULL,
0xffffffffffffffffULL, 0xffffffffffffffffULL,
};
static address p256_mask52() {
return (address)P256_MASK52;
}
ATTRIBUTE_ALIGNED(64) uint64_t SHIFT1R[] = {
0x0000000000000001ULL, 0x0000000000000002ULL,
0x0000000000000003ULL, 0x0000000000000004ULL,
0x0000000000000005ULL, 0x0000000000000006ULL,
0x0000000000000007ULL, 0x0000000000000000ULL,
};
static address shift_1R() {
return (address)SHIFT1R;
}
ATTRIBUTE_ALIGNED(64) uint64_t SHIFT1L[] = {
0x0000000000000007ULL, 0x0000000000000000ULL,
0x0000000000000001ULL, 0x0000000000000002ULL,
0x0000000000000003ULL, 0x0000000000000004ULL,
0x0000000000000005ULL, 0x0000000000000006ULL,
};
static address shift_1L() {
return (address)SHIFT1L;
}
/**
* Unrolled Word-by-Word Montgomery Multiplication
* r = a * b * 2^-260 (mod P)
*
* Reference [1]: Shay Gueron and Vlad Krasnov
* "Fast Prime Field Elliptic Curve Cryptography with 256 Bit Primes"
* See Figure 5. "Algorithm 2: Word-by-Word Montgomery Multiplication for a Montgomery
* Friendly modulus p". Note: Step 6. Skipped; Instead use numAdds to reuse existing overflow
* logic.
*
* Pseudocode:
*
* +--+--+--+--+--+--+--+--+
* M = load(*modulus_p256) | 0| 0| 0|m5|m4|m3|m2|m1|
* +--+--+--+--+--+--+--+--+
* A = load(*aLimbs) | 0| 0| 0|a5|a4|a3|a2|a1|
* +--+--+--+--+--+--+--+--+
* Acc1 = 0 | 0| 0| 0| 0| 0| 0| 0| 0|
* +--+--+--+--+--+--+--+--+
* ---- for i = 0 to 4
* +--+--+--+--+--+--+--+--+
* Acc2 = 0 | 0| 0| 0| 0| 0| 0| 0| 0|
* +--+--+--+--+--+--+--+--+
* B = replicate(bLimbs[i]) |bi|bi|bi|bi|bi|bi|bi|bi|
* +--+--+--+--+--+--+--+--+
* +--+--+--+--+--+--+--+--+
* Acc1+=| 0| 0| 0|c5|c4|c3|c2|c1|
* *| 0| 0| 0|a5|a4|a3|a2|a1|
* Acc1 += A * B |bi|bi|bi|bi|bi|bi|bi|bi|
* +--+--+--+--+--+--+--+--+
* Acc2+=| 0| 0| 0| 0| 0| 0| 0| 0|
* *h| 0| 0| 0|a5|a4|a3|a2|a1|
* Acc2 += A *h B |bi|bi|bi|bi|bi|bi|bi|bi|
* +--+--+--+--+--+--+--+--+
* N = replicate(Acc1[0]) |n0|n0|n0|n0|n0|n0|n0|n0|
* +--+--+--+--+--+--+--+--+
* +--+--+--+--+--+--+--+--+
* Acc1+=| 0| 0| 0|c5|c4|c3|c2|c1|
* *| 0| 0| 0|m5|m4|m3|m2|m1|
* Acc1 += M * N |n0|n0|n0|n0|n0|n0|n0|n0| Note: 52 low bits of Acc1[0] == 0 due to Montgomery!
* +--+--+--+--+--+--+--+--+
* Acc2+=| 0| 0| 0|d5|d4|d3|d2|d1|
* *h| 0| 0| 0|m5|m4|m3|m2|m1|
* Acc2 += M *h N |n0|n0|n0|n0|n0|n0|n0|n0|
* +--+--+--+--+--+--+--+--+
* if (i == 4) break;
* // Combine high/low partial sums Acc1 + Acc2
* +--+--+--+--+--+--+--+--+
* carry = Acc1[0] >> 52 | 0| 0| 0| 0| 0| 0| 0|c1|
* +--+--+--+--+--+--+--+--+
* Acc2[0] += carry
* +--+--+--+--+--+--+--+--+
* Acc1 = Acc1 shift one q element>> | 0| 0| 0| 0|c5|c4|c3|c2|
* +--+--+--+--+--+--+--+--+
* Acc1 = Acc1 + Acc2
* ---- done
* // Last Carry round: Combine high/low partial sums Acc1<high_bits> + Acc1 + Acc2
* carry = Acc1 >> 52
* Acc1 = Acc1 shift one q element >>
* Acc1 = mask52(Acc1)
* Acc2 += carry
* Acc1 = Acc1 + Acc2
* output to rLimbs
*/
void montgomeryMultiply(const Register aLimbs, const Register bLimbs, const Register rLimbs, const Register tmp, MacroAssembler* _masm) {
Register t0 = tmp;
Register rscratch = tmp;
// Inputs
XMMRegister A = xmm0;
XMMRegister B = xmm1;
XMMRegister T = xmm2;
// Intermediates
XMMRegister Acc1 = xmm10;
XMMRegister Acc2 = xmm11;
XMMRegister N = xmm12;
XMMRegister carry = xmm13;
// // Constants
XMMRegister modulus = xmm20;
XMMRegister shift1L = xmm21;
XMMRegister shift1R = xmm22;
XMMRegister mask52 = xmm23;
KRegister limb0 = k1;
KRegister allLimbs = k2;
__ mov64(t0, 0x1);
__ kmovql(limb0, t0);
__ mov64(t0, 0x1f);
__ kmovql(allLimbs, t0);
__ evmovdquq(shift1L, allLimbs, ExternalAddress(shift_1L()), false, Assembler::AVX_512bit, rscratch);
__ evmovdquq(shift1R, allLimbs, ExternalAddress(shift_1R()), false, Assembler::AVX_512bit, rscratch);
__ evmovdquq(mask52, allLimbs, ExternalAddress(p256_mask52()), false, Assembler::AVX_512bit, rscratch);
// M = load(*modulus_p256)
__ evmovdquq(modulus, allLimbs, ExternalAddress(modulus_p256()), false, Assembler::AVX_512bit, rscratch);
// A = load(*aLimbs); masked evmovdquq() can be slow. Instead load full 256bit, and compbine with 64bit
__ evmovdquq(A, Address(aLimbs, 8), Assembler::AVX_256bit);
__ evpermq(A, allLimbs, shift1L, A, false, Assembler::AVX_512bit);
__ movq(T, Address(aLimbs, 0));
__ evporq(A, A, T, Assembler::AVX_512bit);
// Acc1 = 0
__ vpxorq(Acc1, Acc1, Acc1, Assembler::AVX_512bit);
for (int i = 0; i< 5; i++) {
// Acc2 = 0
__ vpxorq(Acc2, Acc2, Acc2, Assembler::AVX_512bit);
// B = replicate(bLimbs[i])
__ vpbroadcastq(B, Address(bLimbs, i*8), Assembler::AVX_512bit);
// Acc1 += A * B
__ evpmadd52luq(Acc1, A, B, Assembler::AVX_512bit);
// Acc2 += A *h B
__ evpmadd52huq(Acc2, A, B, Assembler::AVX_512bit);
// N = replicate(Acc1[0])
__ vpbroadcastq(N, Acc1, Assembler::AVX_512bit);
// Acc1 += M * N
__ evpmadd52luq(Acc1, modulus, N, Assembler::AVX_512bit);
// Acc2 += M *h N
__ evpmadd52huq(Acc2, modulus, N, Assembler::AVX_512bit);
if (i == 4) break;
// Combine high/low partial sums Acc1 + Acc2
// carry = Acc1[0] >> 52
__ evpsrlq(carry, limb0, Acc1, 52, true, Assembler::AVX_512bit);
// Acc2[0] += carry
__ evpaddq(Acc2, limb0, carry, Acc2, true, Assembler::AVX_512bit);
// Acc1 = Acc1 shift one q element >>
__ evpermq(Acc1, allLimbs, shift1R, Acc1, false, Assembler::AVX_512bit);
// Acc1 = Acc1 + Acc2
__ vpaddq(Acc1, Acc1, Acc2, Assembler::AVX_512bit);
}
// Last Carry round: Combine high/low partial sums Acc1<high_bits> + Acc1 + Acc2
// carry = Acc1 >> 52
__ evpsrlq(carry, allLimbs, Acc1, 52, true, Assembler::AVX_512bit);
// Acc1 = Acc1 shift one q element >>
__ evpermq(Acc1, allLimbs, shift1R, Acc1, false, Assembler::AVX_512bit);
// Acc1 = mask52(Acc1)
__ evpandq(Acc1, Acc1, mask52, Assembler::AVX_512bit); // Clear top 12 bits
// Acc2 += carry
__ evpaddq(Acc2, allLimbs, carry, Acc2, true, Assembler::AVX_512bit);
// Acc1 = Acc1 + Acc2
__ vpaddq(Acc1, Acc1, Acc2, Assembler::AVX_512bit);
// output to rLimbs (1 + 4 limbs)
__ movq(Address(rLimbs, 0), Acc1);
__ evpermq(Acc1, k0, shift1R, Acc1, true, Assembler::AVX_512bit);
__ evmovdquq(Address(rLimbs, 8), k0, Acc1, true, Assembler::AVX_256bit);
}
address StubGenerator::generate_intpoly_montgomeryMult_P256() {
__ align(CodeEntryAlignment);
StubCodeMark mark(this, "StubRoutines", "intpoly_montgomeryMult_P256");
address start = __ pc();
__ enter();
// Register Map
const Register aLimbs = c_rarg0; // rdi | rcx
const Register bLimbs = c_rarg1; // rsi | rdx
const Register rLimbs = c_rarg2; // rdx | r8
const Register tmp = r9;
montgomeryMultiply(aLimbs, bLimbs, rLimbs, tmp, _masm);
__ mov64(rax, 0x1); // Return 1 (Fig. 5, Step 6 [1] skipped in montgomeryMultiply)
__ leave();
__ ret(0);
return start;
}
// A = B if select
// Must be:
// - constant time (i.e. no branches)
// - no-side channel (i.e. all memory must always be accessed, and in same order)
void assign_avx(XMMRegister A, Address aAddr, XMMRegister B, Address bAddr, KRegister select, int vector_len, MacroAssembler* _masm) {
__ evmovdquq(A, aAddr, vector_len);
__ evmovdquq(B, bAddr, vector_len);
__ evmovdquq(A, select, B, true, vector_len);
__ evmovdquq(aAddr, A, vector_len);
}
void assign_scalar(Address aAddr, Address bAddr, Register select, Register tmp, MacroAssembler* _masm) {
// Original java:
// long dummyLimbs = maskValue & (a[i] ^ b[i]);
// a[i] = dummyLimbs ^ a[i];
__ movq(tmp, aAddr);
__ xorq(tmp, bAddr);
__ andq(tmp, select);
__ xorq(aAddr, tmp);
}
address StubGenerator::generate_intpoly_assign() {
// KNOWN Lengths:
// MontgomeryIntPolynP256: 5 = 4 + 1
// IntegerPolynomial1305: 5 = 4 + 1
// IntegerPolynomial25519: 10 = 8 + 2
// IntegerPolynomialP256: 10 = 8 + 2
// Curve25519OrderField: 10 = 8 + 2
// Curve25519OrderField: 10 = 8 + 2
// P256OrderField: 10 = 8 + 2
// IntegerPolynomialP384: 14 = 8 + 4 + 2
// P384OrderField: 14 = 8 + 4 + 2
// IntegerPolynomial448: 16 = 8 + 8
// Curve448OrderField: 16 = 8 + 8
// Curve448OrderField: 16 = 8 + 8
// IntegerPolynomialP521: 19 = 8 + 8 + 2 + 1
// P521OrderField: 19 = 8 + 8 + 2 + 1
// Special Cases 5, 10, 14, 16, 19
__ align(CodeEntryAlignment);
StubCodeMark mark(this, "StubRoutines", "intpoly_assign");
address start = __ pc();
__ enter();
// Inputs
const Register set = c_rarg0;
const Register aLimbs = c_rarg1;
const Register bLimbs = c_rarg2;
const Register length = c_rarg3;
XMMRegister A = xmm0;
XMMRegister B = xmm1;
Register tmp = r9;
KRegister select = k1;
Label L_Length5, L_Length10, L_Length14, L_Length16, L_Length19, L_DefaultLoop, L_Done;
__ negq(set);
__ kmovql(select, set);
// NOTE! Crypto code cannot branch on user input. However; allowed to branch on number of limbs;
// Number of limbs is a constant in each IntegerPolynomial (i.e. this side-channel branch leaks
// number of limbs which is not a secret)
__ cmpl(length, 5);
__ jcc(Assembler::equal, L_Length5);
__ cmpl(length, 10);
__ jcc(Assembler::equal, L_Length10);
__ cmpl(length, 14);
__ jcc(Assembler::equal, L_Length14);
__ cmpl(length, 16);
__ jcc(Assembler::equal, L_Length16);
__ cmpl(length, 19);
__ jcc(Assembler::equal, L_Length19);
// Default copy loop (UNLIKELY)
__ cmpl(length, 0);
__ jcc(Assembler::lessEqual, L_Done);
__ bind(L_DefaultLoop);
assign_scalar(Address(aLimbs, 0), Address(bLimbs, 0), set, tmp, _masm);
__ subl(length, 1);
__ lea(aLimbs, Address(aLimbs,8));
__ lea(bLimbs, Address(bLimbs,8));
__ cmpl(length, 0);
__ jcc(Assembler::greater, L_DefaultLoop);
__ jmp(L_Done);
__ bind(L_Length5); // 1 + 4
assign_scalar(Address(aLimbs, 0), Address(bLimbs, 0), set, tmp, _masm);
assign_avx(A, Address(aLimbs, 8), B, Address(bLimbs, 8), select, Assembler::AVX_256bit, _masm);
__ jmp(L_Done);
__ bind(L_Length10); // 2 + 8
assign_avx(A, Address(aLimbs, 0), B, Address(bLimbs, 0), select, Assembler::AVX_128bit, _masm);
assign_avx(A, Address(aLimbs, 16), B, Address(bLimbs, 16), select, Assembler::AVX_512bit, _masm);
__ jmp(L_Done);
__ bind(L_Length14); // 2 + 4 + 8
assign_avx(A, Address(aLimbs, 0), B, Address(bLimbs, 0), select, Assembler::AVX_128bit, _masm);
assign_avx(A, Address(aLimbs, 16), B, Address(bLimbs, 16), select, Assembler::AVX_256bit, _masm);
assign_avx(A, Address(aLimbs, 48), B, Address(bLimbs, 48), select, Assembler::AVX_512bit, _masm);
__ jmp(L_Done);
__ bind(L_Length16); // 8 + 8
assign_avx(A, Address(aLimbs, 0), B, Address(bLimbs, 0), select, Assembler::AVX_512bit, _masm);
assign_avx(A, Address(aLimbs, 64), B, Address(bLimbs, 64), select, Assembler::AVX_512bit, _masm);
__ jmp(L_Done);
__ bind(L_Length19); // 1 + 2 + 8 + 8
assign_scalar(Address(aLimbs, 0), Address(bLimbs, 0), set, tmp, _masm);
assign_avx(A, Address(aLimbs, 8), B, Address(bLimbs, 8), select, Assembler::AVX_128bit, _masm);
assign_avx(A, Address(aLimbs, 24), B, Address(bLimbs, 24), select, Assembler::AVX_512bit, _masm);
assign_avx(A, Address(aLimbs, 88), B, Address(bLimbs, 88), select, Assembler::AVX_512bit, _masm);
__ bind(L_Done);
__ leave();
__ ret(0);
return start;
}

12
src/hotspot/cpu/x86/vm_version_x86.cpp
View file

@ -1366,6 +1366,18 @@ void VM_Version::get_processor_features() {
FLAG_SET_DEFAULT(UsePoly1305Intrinsics, false); FLAG_SET_DEFAULT(UsePoly1305Intrinsics, false);
} }
#ifdef _LP64
if (supports_avx512ifma() && supports_avx512vlbw()) {
if (FLAG_IS_DEFAULT(UseIntPolyIntrinsics)) {
FLAG_SET_DEFAULT(UseIntPolyIntrinsics, true);
}
} else
#endif
if (UseIntPolyIntrinsics) {
warning("Intrinsics for Polynomial crypto functions not available on this CPU.");
FLAG_SET_DEFAULT(UseIntPolyIntrinsics, false);
}
#ifdef _LP64 #ifdef _LP64
if (FLAG_IS_DEFAULT(UseMultiplyToLenIntrinsic)) { if (FLAG_IS_DEFAULT(UseMultiplyToLenIntrinsic)) {
UseMultiplyToLenIntrinsic = true; UseMultiplyToLenIntrinsic = true;

4
src/hotspot/share/classfile/vmIntrinsics.cpp
View file

@ -492,6 +492,10 @@ bool vmIntrinsics::disabled_by_jvm_flags(vmIntrinsics::ID id) {
case vmIntrinsics::_poly1305_processBlocks: case vmIntrinsics::_poly1305_processBlocks:
if (!UsePoly1305Intrinsics) return true; if (!UsePoly1305Intrinsics) return true;
break; break;
case vmIntrinsics::_intpoly_montgomeryMult_P256:
case vmIntrinsics::_intpoly_assign:
if (!UseIntPolyIntrinsics) return true;
break;
case vmIntrinsics::_updateBytesCRC32C: case vmIntrinsics::_updateBytesCRC32C:
case vmIntrinsics::_updateDirectByteBufferCRC32C: case vmIntrinsics::_updateDirectByteBufferCRC32C:
if (!UseCRC32CIntrinsics) return true; if (!UseCRC32CIntrinsics) return true;

13
src/hotspot/share/classfile/vmIntrinsics.hpp
View file

@ -526,7 +526,18 @@ class methodHandle;
do_intrinsic(_digestBase_implCompressMB, sun_security_provider_digestbase, implCompressMB_name, countPositives_signature, F_R) \ do_intrinsic(_digestBase_implCompressMB, sun_security_provider_digestbase, implCompressMB_name, countPositives_signature, F_R) \
do_name( implCompressMB_name, "implCompressMultiBlock0") \ do_name( implCompressMB_name, "implCompressMultiBlock0") \
\ \
/* support for java.util.Base64.Encoder*/ \ /* support for sun.security.util.math.intpoly.MontgomeryIntegerPolynomialP256 */ \
do_class(sun_security_util_math_intpoly_MontgomeryIntegerPolynomialP256, "sun/security/util/math/intpoly/MontgomeryIntegerPolynomialP256") \
do_intrinsic(_intpoly_montgomeryMult_P256, sun_security_util_math_intpoly_MontgomeryIntegerPolynomialP256, intPolyMult_name, intPolyMult_signature, F_R) \
do_name(intPolyMult_name, "mult") \
do_signature(intPolyMult_signature, "([J[J[J)I") \
\
do_class(sun_security_util_math_intpoly_IntegerPolynomial, "sun/security/util/math/intpoly/IntegerPolynomial") \
do_intrinsic(_intpoly_assign, sun_security_util_math_intpoly_IntegerPolynomial, intPolyAssign_name, intPolyAssign_signature, F_S) \
do_name(intPolyAssign_name, "conditionalAssign") \
do_signature(intPolyAssign_signature, "(I[J[J)V") \
\
/* support for java.util.Base64.Encoder*/ \
do_class(java_util_Base64_Encoder, "java/util/Base64$Encoder") \ do_class(java_util_Base64_Encoder, "java/util/Base64$Encoder") \
do_intrinsic(_base64_encodeBlock, java_util_Base64_Encoder, encodeBlock_name, encodeBlock_signature, F_R) \ do_intrinsic(_base64_encodeBlock, java_util_Base64_Encoder, encodeBlock_name, encodeBlock_signature, F_R) \
do_name(encodeBlock_name, "encodeBlock") \ do_name(encodeBlock_name, "encodeBlock") \

6
src/hotspot/share/gc/shenandoah/c2/shenandoahSupport.cpp
View file

@ -463,6 +463,12 @@ void ShenandoahBarrierC2Support::verify(RootNode* root) {
"decodeBlock", "decodeBlock",
{ { TypeFunc::Parms, ShenandoahLoad }, { TypeFunc::Parms+3, ShenandoahStore }, { -1, ShenandoahNone }, { { TypeFunc::Parms, ShenandoahLoad }, { TypeFunc::Parms+3, ShenandoahStore }, { -1, ShenandoahNone },
{ -1, ShenandoahNone}, { -1, ShenandoahNone}, { -1, ShenandoahNone} }, { -1, ShenandoahNone}, { -1, ShenandoahNone}, { -1, ShenandoahNone} },
"intpoly_montgomeryMult_P256",
{ { TypeFunc::Parms, ShenandoahLoad }, { TypeFunc::Parms+1, ShenandoahLoad }, { TypeFunc::Parms+2, ShenandoahStore },
{ -1, ShenandoahNone}, { -1, ShenandoahNone}, { -1, ShenandoahNone} },
"intpoly_assign",
{ { TypeFunc::Parms+1, ShenandoahStore }, { TypeFunc::Parms+2, ShenandoahLoad }, { -1, ShenandoahNone },
{ -1, ShenandoahNone}, { -1, ShenandoahNone}, { -1, ShenandoahNone} },
}; };
if (call->is_call_to_arraycopystub()) { if (call->is_call_to_arraycopystub()) {

2
src/hotspot/share/jvmci/vmStructs_jvmci.cpp
View file

@ -361,6 +361,8 @@
static_field(StubRoutines, _md5_implCompressMB, address) \ static_field(StubRoutines, _md5_implCompressMB, address) \
static_field(StubRoutines, _chacha20Block, address) \ static_field(StubRoutines, _chacha20Block, address) \
static_field(StubRoutines, _poly1305_processBlocks, address) \ static_field(StubRoutines, _poly1305_processBlocks, address) \
static_field(StubRoutines, _intpoly_montgomeryMult_P256, address) \
static_field(StubRoutines, _intpoly_assign, address) \
static_field(StubRoutines, _sha1_implCompress, address) \ static_field(StubRoutines, _sha1_implCompress, address) \
static_field(StubRoutines, _sha1_implCompressMB, address) \ static_field(StubRoutines, _sha1_implCompressMB, address) \
static_field(StubRoutines, _sha256_implCompress, address) \ static_field(StubRoutines, _sha256_implCompress, address) \

2
src/hotspot/share/opto/c2compiler.cpp
View file

@ -786,6 +786,8 @@ bool C2Compiler::is_intrinsic_supported(vmIntrinsics::ID id) {
case vmIntrinsics::_base64_encodeBlock: case vmIntrinsics::_base64_encodeBlock:
case vmIntrinsics::_base64_decodeBlock: case vmIntrinsics::_base64_decodeBlock:
case vmIntrinsics::_poly1305_processBlocks: case vmIntrinsics::_poly1305_processBlocks:
case vmIntrinsics::_intpoly_montgomeryMult_P256:
case vmIntrinsics::_intpoly_assign:
case vmIntrinsics::_updateCRC32: case vmIntrinsics::_updateCRC32:
case vmIntrinsics::_updateBytesCRC32: case vmIntrinsics::_updateBytesCRC32:
case vmIntrinsics::_updateByteBufferCRC32: case vmIntrinsics::_updateByteBufferCRC32:

2
src/hotspot/share/opto/escape.cpp
View file

@ -2173,6 +2173,8 @@ void ConnectionGraph::process_call_arguments(CallNode *call) {
strcmp(call->as_CallLeaf()->_name, "counterMode_AESCrypt") == 0 || strcmp(call->as_CallLeaf()->_name, "counterMode_AESCrypt") == 0 ||
strcmp(call->as_CallLeaf()->_name, "galoisCounterMode_AESCrypt") == 0 || strcmp(call->as_CallLeaf()->_name, "galoisCounterMode_AESCrypt") == 0 ||
strcmp(call->as_CallLeaf()->_name, "poly1305_processBlocks") == 0 || strcmp(call->as_CallLeaf()->_name, "poly1305_processBlocks") == 0 ||
strcmp(call->as_CallLeaf()->_name, "intpoly_montgomeryMult_P256") == 0 ||
strcmp(call->as_CallLeaf()->_name, "intpoly_assign") == 0 ||
strcmp(call->as_CallLeaf()->_name, "ghash_processBlocks") == 0 || strcmp(call->as_CallLeaf()->_name, "ghash_processBlocks") == 0 ||
strcmp(call->as_CallLeaf()->_name, "chacha20Block") == 0 || strcmp(call->as_CallLeaf()->_name, "chacha20Block") == 0 ||
strcmp(call->as_CallLeaf()->_name, "encodeBlock") == 0 || strcmp(call->as_CallLeaf()->_name, "encodeBlock") == 0 ||

68
src/hotspot/share/opto/library_call.cpp
View file

@ -638,7 +638,10 @@ bool LibraryCallKit::try_to_inline(int predicate) {
return inline_base64_decodeBlock(); return inline_base64_decodeBlock();
case vmIntrinsics::_poly1305_processBlocks: case vmIntrinsics::_poly1305_processBlocks:
return inline_poly1305_processBlocks(); return inline_poly1305_processBlocks();
case vmIntrinsics::_intpoly_montgomeryMult_P256:
return inline_intpoly_montgomeryMult_P256();
case vmIntrinsics::_intpoly_assign:
return inline_intpoly_assign();
case vmIntrinsics::_encodeISOArray: case vmIntrinsics::_encodeISOArray:
case vmIntrinsics::_encodeByteISOArray: case vmIntrinsics::_encodeByteISOArray:
return inline_encodeISOArray(false); return inline_encodeISOArray(false);
@ -7568,6 +7571,69 @@ bool LibraryCallKit::inline_poly1305_processBlocks() {
return true; return true;
} }
bool LibraryCallKit::inline_intpoly_montgomeryMult_P256() {
address stubAddr;
const char *stubName;
assert(UseIntPolyIntrinsics, "need intpoly intrinsics support");
assert(callee()->signature()->size() == 3, "intpoly_montgomeryMult_P256 has %d parameters", callee()->signature()->size());
stubAddr = StubRoutines::intpoly_montgomeryMult_P256();
stubName = "intpoly_montgomeryMult_P256";
if (!stubAddr) return false;
null_check_receiver(); // null-check receiver
if (stopped()) return true;
Node* a = argument(1);
Node* b = argument(2);
Node* r = argument(3);
a = must_be_not_null(a, true);
b = must_be_not_null(b, true);
r = must_be_not_null(r, true);
Node* a_start = array_element_address(a, intcon(0), T_LONG);
assert(a_start, "a array is NULL");
Node* b_start = array_element_address(b, intcon(0), T_LONG);
assert(b_start, "b array is NULL");
Node* r_start = array_element_address(r, intcon(0), T_LONG);
assert(r_start, "r array is NULL");
Node* call = make_runtime_call(RC_LEAF | RC_NO_FP,
OptoRuntime::intpoly_montgomeryMult_P256_Type(),
stubAddr, stubName, TypePtr::BOTTOM,
a_start, b_start, r_start);
Node* result = _gvn.transform(new ProjNode(call, TypeFunc::Parms));
set_result(result);
return true;
}
bool LibraryCallKit::inline_intpoly_assign() {
assert(UseIntPolyIntrinsics, "need intpoly intrinsics support");
assert(callee()->signature()->size() == 3, "intpoly_assign has %d parameters", callee()->signature()->size());
const char *stubName = "intpoly_assign";
address stubAddr = StubRoutines::intpoly_assign();
if (!stubAddr) return false;
Node* set = argument(0);
Node* a = argument(1);
Node* b = argument(2);
Node* arr_length = load_array_length(a);
a = must_be_not_null(a, true);
b = must_be_not_null(b, true);
Node* a_start = array_element_address(a, intcon(0), T_LONG);
assert(a_start, "a array is NULL");
Node* b_start = array_element_address(b, intcon(0), T_LONG);
assert(b_start, "b array is NULL");
Node* call = make_runtime_call(RC_LEAF | RC_NO_FP,
OptoRuntime::intpoly_assign_Type(),
stubAddr, stubName, TypePtr::BOTTOM,
set, a_start, b_start, arr_length);
return true;
}
//------------------------------inline_digestBase_implCompress----------------------- //------------------------------inline_digestBase_implCompress-----------------------
// //
// Calculate MD5 for single-block byte[] array. // Calculate MD5 for single-block byte[] array.

2
src/hotspot/share/opto/library_call.hpp
View file

@ -307,6 +307,8 @@ class LibraryCallKit : public GraphKit {
bool inline_base64_encodeBlock(); bool inline_base64_encodeBlock();
bool inline_base64_decodeBlock(); bool inline_base64_decodeBlock();
bool inline_poly1305_processBlocks(); bool inline_poly1305_processBlocks();
bool inline_intpoly_montgomeryMult_P256();
bool inline_intpoly_assign();
bool inline_digestBase_implCompress(vmIntrinsics::ID id); bool inline_digestBase_implCompress(vmIntrinsics::ID id);
bool inline_digestBase_implCompressMB(int predicate); bool inline_digestBase_implCompressMB(int predicate);
bool inline_digestBase_implCompressMB(Node* digestBaseObj, ciInstanceKlass* instklass, bool inline_digestBase_implCompressMB(Node* digestBaseObj, ciInstanceKlass* instklass,

39
src/hotspot/share/opto/runtime.cpp
View file

@ -1401,6 +1401,45 @@ const TypeFunc* OptoRuntime::poly1305_processBlocks_Type() {
return TypeFunc::make(domain, range); return TypeFunc::make(domain, range);
} }
// MontgomeryIntegerPolynomialP256 multiply function
const TypeFunc* OptoRuntime::intpoly_montgomeryMult_P256_Type() {
int argcnt = 3;
const Type** fields = TypeTuple::fields(argcnt);
int argp = TypeFunc::Parms;
fields[argp++] = TypePtr::NOTNULL; // a array
fields[argp++] = TypePtr::NOTNULL; // b array
fields[argp++] = TypePtr::NOTNULL; // r(esult) array
assert(argp == TypeFunc::Parms + argcnt, "correct decoding");
const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
// result type needed
fields = TypeTuple::fields(1);
fields[TypeFunc::Parms + 0] = TypeInt::INT; // carry bits in output
const TypeTuple* range = TypeTuple::make(TypeFunc::Parms+1, fields);
return TypeFunc::make(domain, range);
}
// IntegerPolynomial constant time assignment function
const TypeFunc* OptoRuntime::intpoly_assign_Type() {
int argcnt = 4;
const Type** fields = TypeTuple::fields(argcnt);
int argp = TypeFunc::Parms;
fields[argp++] = TypeInt::INT; // set flag
fields[argp++] = TypePtr::NOTNULL; // a array (result)
fields[argp++] = TypePtr::NOTNULL; // b array (if set is set)
fields[argp++] = TypeInt::INT; // array length
assert(argp == TypeFunc::Parms + argcnt, "correct decoding");
const TypeTuple* domain = TypeTuple::make(TypeFunc::Parms+argcnt, fields);
// result type needed
fields = TypeTuple::fields(1);
fields[TypeFunc::Parms + 0] = NULL; // void
const TypeTuple* range = TypeTuple::make(TypeFunc::Parms, fields);
return TypeFunc::make(domain, range);
}
//------------- Interpreter state access for on stack replacement //------------- Interpreter state access for on stack replacement
const TypeFunc* OptoRuntime::osr_end_Type() { const TypeFunc* OptoRuntime::osr_end_Type() {
// create input type (domain) // create input type (domain)

2
src/hotspot/share/opto/runtime.hpp
View file

@ -298,6 +298,8 @@ private:
static const TypeFunc* base64_encodeBlock_Type(); static const TypeFunc* base64_encodeBlock_Type();
static const TypeFunc* base64_decodeBlock_Type(); static const TypeFunc* base64_decodeBlock_Type();
static const TypeFunc* poly1305_processBlocks_Type(); static const TypeFunc* poly1305_processBlocks_Type();
static const TypeFunc* intpoly_montgomeryMult_P256_Type();
static const TypeFunc* intpoly_assign_Type();
static const TypeFunc* updateBytesCRC32_Type(); static const TypeFunc* updateBytesCRC32_Type();
static const TypeFunc* updateBytesCRC32C_Type(); static const TypeFunc* updateBytesCRC32C_Type();

2
src/hotspot/share/runtime/globals.hpp
View file

@ -233,6 +233,8 @@ const int ObjectAlignmentInBytes = 8;
\ \
product(bool, UsePoly1305Intrinsics, false, DIAGNOSTIC, \ product(bool, UsePoly1305Intrinsics, false, DIAGNOSTIC, \
"Use intrinsics for sun.security.util.math.intpoly") \ "Use intrinsics for sun.security.util.math.intpoly") \
product(bool, UseIntPolyIntrinsics, false, DIAGNOSTIC, \
"Use intrinsics for sun.security.util.math.intpoly.MontgomeryIntegerPolynomialP256") \
\ \
product(size_t, LargePageSizeInBytes, 0, \ product(size_t, LargePageSizeInBytes, 0, \
"Maximum large page size used (0 will use the default large " \ "Maximum large page size used (0 will use the default large " \

2
src/hotspot/share/runtime/stubRoutines.cpp
View file

@ -132,6 +132,8 @@ address StubRoutines::_chacha20Block = nullptr;
address StubRoutines::_base64_encodeBlock = nullptr; address StubRoutines::_base64_encodeBlock = nullptr;
address StubRoutines::_base64_decodeBlock = nullptr; address StubRoutines::_base64_decodeBlock = nullptr;
address StubRoutines::_poly1305_processBlocks = nullptr; address StubRoutines::_poly1305_processBlocks = nullptr;
address StubRoutines::_intpoly_montgomeryMult_P256 = nullptr;
address StubRoutines::_intpoly_assign = nullptr;
address StubRoutines::_md5_implCompress = nullptr; address StubRoutines::_md5_implCompress = nullptr;
address StubRoutines::_md5_implCompressMB = nullptr; address StubRoutines::_md5_implCompressMB = nullptr;

4
src/hotspot/share/runtime/stubRoutines.hpp
View file

@ -215,6 +215,8 @@ class StubRoutines: AllStatic {
static address _base64_encodeBlock; static address _base64_encodeBlock;
static address _base64_decodeBlock; static address _base64_decodeBlock;
static address _poly1305_processBlocks; static address _poly1305_processBlocks;
static address _intpoly_montgomeryMult_P256;
static address _intpoly_assign;
static address _md5_implCompress; static address _md5_implCompress;
static address _md5_implCompressMB; static address _md5_implCompressMB;
@ -409,6 +411,8 @@ class StubRoutines: AllStatic {
static address electronicCodeBook_encryptAESCrypt() { return _electronicCodeBook_encryptAESCrypt; } static address electronicCodeBook_encryptAESCrypt() { return _electronicCodeBook_encryptAESCrypt; }
static address electronicCodeBook_decryptAESCrypt() { return _electronicCodeBook_decryptAESCrypt; } static address electronicCodeBook_decryptAESCrypt() { return _electronicCodeBook_decryptAESCrypt; }
static address poly1305_processBlocks() { return _poly1305_processBlocks; } static address poly1305_processBlocks() { return _poly1305_processBlocks; }
static address intpoly_montgomeryMult_P256() { return _intpoly_montgomeryMult_P256; }
static address intpoly_assign() { return _intpoly_assign; }
static address counterMode_AESCrypt() { return _counterMode_AESCrypt; } static address counterMode_AESCrypt() { return _counterMode_AESCrypt; }
static address ghash_processBlocks() { return _ghash_processBlocks; } static address ghash_processBlocks() { return _ghash_processBlocks; }
static address chacha20Block() { return _chacha20Block; } static address chacha20Block() { return _chacha20Block; }

6
src/java.base/share/classes/sun/security/ec/ECDHKeyAgreement.java
View file

@ -31,6 +31,7 @@ import sun.security.util.CurveDB;
import sun.security.util.ECUtil; import sun.security.util.ECUtil;
import sun.security.util.NamedCurve; import sun.security.util.NamedCurve;
import sun.security.util.math.IntegerFieldModuloP; import sun.security.util.math.IntegerFieldModuloP;
import sun.security.util.math.IntegerMontgomeryFieldModuloP;
import sun.security.util.math.MutableIntegerModuloP; import sun.security.util.math.MutableIntegerModuloP;
import sun.security.util.math.SmallValue; import sun.security.util.math.SmallValue;
@ -265,6 +266,11 @@ public final class ECDHKeyAgreement extends KeyAgreementSpi {
ECPublicKey pubKey) throws InvalidKeyException { ECPublicKey pubKey) throws InvalidKeyException {
IntegerFieldModuloP field = ops.getField(); IntegerFieldModuloP field = ops.getField();
if (field instanceof IntegerMontgomeryFieldModuloP) {
// No point of doing a single SmallValue operation in Montgomery domain
field = ((IntegerMontgomeryFieldModuloP)field).residueField();
}
// convert s array into field element and multiply by the cofactor // convert s array into field element and multiply by the cofactor
MutableIntegerModuloP scalar = field.getElement(priv.getS()).mutable(); MutableIntegerModuloP scalar = field.getElement(priv.getS()).mutable();
SmallValue cofactor = SmallValue cofactor =

4
src/java.base/share/classes/sun/security/ec/ECDSAOperations.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -252,7 +252,7 @@ public class ECDSAOperations {
MutablePoint p1 = ecOps.multiply(basePoint, temp1); MutablePoint p1 = ecOps.multiply(basePoint, temp1);
MutablePoint p2 = ecOps.multiply(pp, temp2); MutablePoint p2 = ecOps.multiply(pp, temp2);
ecOps.setSum(p1, p2.asAffine()); ecOps.setSum(p1, p2);
IntegerModuloP result = p1.asAffine().getX(); IntegerModuloP result = p1.asAffine().getX();
b2a(result, orderField, temp1); b2a(result, orderField, temp1);
return MessageDigest.isEqual(temp1, r); return MessageDigest.isEqual(temp1, r);

505
src/java.base/share/classes/sun/security/ec/ECOperations.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, 2023, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -46,12 +46,7 @@ import java.util.Optional;
* Formulas are derived from "Complete addition formulas for prime order * Formulas are derived from "Complete addition formulas for prime order
* elliptic curves" by Renes, Costello, and Batina. * elliptic curves" by Renes, Costello, and Batina.
*/ */
public class ECOperations { public class ECOperations {
private static final ECOperations secp256r1Ops =
new ECOperations(IntegerPolynomialP256.ONE.getElement(
CurveDB.lookup(KnownOIDs.secp256r1.value()).getCurve().getB()),
P256OrderField.ONE);
/* /*
* An exception indicating a problem with an intermediate value produced * An exception indicating a problem with an intermediate value produced
@ -64,7 +59,7 @@ public class ECOperations {
} }
static final Map<BigInteger, IntegerFieldModuloP> fields = Map.of( static final Map<BigInteger, IntegerFieldModuloP> fields = Map.of(
IntegerPolynomialP256.MODULUS, IntegerPolynomialP256.ONE, IntegerPolynomialP256.MODULUS, MontgomeryIntegerPolynomialP256.ONE,
IntegerPolynomialP384.MODULUS, IntegerPolynomialP384.ONE, IntegerPolynomialP384.MODULUS, IntegerPolynomialP384.ONE,
IntegerPolynomialP521.MODULUS, IntegerPolynomialP521.ONE IntegerPolynomialP521.MODULUS, IntegerPolynomialP521.ONE
); );
@ -207,11 +202,28 @@ public class ECOperations {
* @return the product * @return the product
*/ */
public MutablePoint multiply(AffinePoint affineP, byte[] s) { public MutablePoint multiply(AffinePoint affineP, byte[] s) {
return PointMultiplier.of(this, affineP).pointMultiply(s); PointMultiplier multiplier = null;
if (getField() instanceof IntegerMontgomeryFieldModuloP
&& affineP.equals(Secp256R1GeneratorMontgomeryMultiplier.generator)) {
// Lazy class loading here
multiplier = Secp256R1GeneratorMontgomeryMultiplier.multiplier;
} else {
multiplier = new DefaultMultiplier(this, affineP);
}
return multiplier.pointMultiply(s);
} }
/**
* Multiply an affine ecpoint point by a scalar and return the result as a
* mutable point.
*
* @param ecPoint the point
* @param s the scalar as a little-endian array
* @return the product
*/
public MutablePoint multiply(ECPoint ecPoint, byte[] s) { public MutablePoint multiply(ECPoint ecPoint, byte[] s) {
return PointMultiplier.of(this, ecPoint).pointMultiply(s); return multiply(AffinePoint.fromECPoint(ecPoint, getField()), s);
} }
/* /*
@ -264,21 +276,26 @@ public class ECOperations {
} }
/* /**
* Mixed point addition. This method constructs new temporaries each time * Adds second Mutable (Projective) point to first.
* it is called. For better efficiency, the method that reuses temporaries *
* should be used if more than one sum will be computed. * Used by ECDSAOperations. This method constructs new temporaries each time
* it is called. For better efficiency, the (private) method that reuses
* temporaries should be used if more than one sum will be computed.
*
* @param p first point and result
* @param p2 second point to add
*/ */
public void setSum(MutablePoint p, AffinePoint p2) { public void setSum(MutablePoint p, MutablePoint p2) {
IntegerModuloP zero = p.getField().get0(); IntegerModuloP zero = p.getField().get0();
MutableIntegerModuloP t0 = zero.mutable(); MutableIntegerModuloP t0 = zero.mutable();
MutableIntegerModuloP t1 = zero.mutable(); MutableIntegerModuloP t1 = zero.mutable();
MutableIntegerModuloP t2 = zero.mutable(); MutableIntegerModuloP t2 = zero.mutable();
MutableIntegerModuloP t3 = zero.mutable(); MutableIntegerModuloP t3 = zero.mutable();
MutableIntegerModuloP t4 = zero.mutable(); MutableIntegerModuloP t4 = zero.mutable();
setSum((ProjectivePoint.Mutable) p, p2, t0, t1, t2, t3, t4);
setSum((ProjectivePoint.Mutable) p, (ProjectivePoint.Mutable) p2,
t0, t1, t2, t3, t4);
} }
/* /*
@ -289,18 +306,18 @@ public class ECOperations {
MutableIntegerModuloP t2, MutableIntegerModuloP t3, MutableIntegerModuloP t2, MutableIntegerModuloP t3,
MutableIntegerModuloP t4) { MutableIntegerModuloP t4) {
t0.setValue(p.getX()).setProduct(p2.getX()); t0.setValue(p.getX()).setProduct(p2.getX(false));
t1.setValue(p.getY()).setProduct(p2.getY()); t1.setValue(p.getY()).setProduct(p2.getY(false));
t3.setValue(p2.getX()).setSum(p2.getY()); t3.setValue(p2.getX(false)).setSum(p2.getY(false));
t4.setValue(p.getX()).setSum(p.getY()); t4.setValue(p.getX()).setSum(p.getY());
t3.setProduct(t4); t3.setProduct(t4);
t4.setValue(t0).setSum(t1); t4.setValue(t0).setSum(t1);
t3.setDifference(t4); t3.setDifference(t4);
t4.setValue(p2.getY()).setProduct(p.getZ()); t4.setValue(p2.getY(false)).setProduct(p.getZ());
t4.setSum(p.getY()); t4.setSum(p.getY());
p.getY().setValue(p2.getX()).setProduct(p.getZ()); p.getY().setValue(p2.getX(false)).setProduct(p.getZ());
p.getY().setSum(p.getX()); p.getY().setSum(p.getX());
t2.setValue(p.getZ()); t2.setValue(p.getZ());
p.getZ().setProduct(b); p.getZ().setProduct(b);
@ -412,11 +429,8 @@ public class ECOperations {
return isNeutral(this.multiply(ap, scalar)); return isNeutral(this.multiply(ap, scalar));
} }
sealed interface PointMultiplier { sealed interface PointMultiplier
Map<ECPoint, PointMultiplier> multipliers = Map.of( permits DefaultMultiplier, Secp256R1GeneratorMontgomeryMultiplier {
Secp256R1GeneratorMultiplier.generator,
Secp256R1GeneratorMultiplier.multiplier);
// Multiply the point by a scalar and return the result as a mutable // Multiply the point by a scalar and return the result as a mutable
// point. The multiplier point is specified by the implementation of // point. The multiplier point is specified by the implementation of
// this interface, which could be a general EC point or EC generator // this interface, which could be a general EC point or EC generator
@ -429,26 +443,6 @@ public class ECOperations {
// in little endian byte array representation. // in little endian byte array representation.
ProjectivePoint.Mutable pointMultiply(byte[] scalar); ProjectivePoint.Mutable pointMultiply(byte[] scalar);
static PointMultiplier of(ECOperations ecOps, AffinePoint affPoint) {
PointMultiplier multiplier = multipliers.get(affPoint.toECPoint());
if (multiplier == null) {
multiplier = new Default(ecOps, affPoint);
}
return multiplier;
}
static PointMultiplier of(ECOperations ecOps, ECPoint ecPoint) {
PointMultiplier multiplier = multipliers.get(ecPoint);
if (multiplier == null) {
AffinePoint affPoint =
AffinePoint.fromECPoint(ecPoint, ecOps.getField());
multiplier = new Default(ecOps, affPoint);
}
return multiplier;
}
private static void lookup( private static void lookup(
ProjectivePoint.Immutable[] ips, int index, ProjectivePoint.Immutable[] ips, int index,
ProjectivePoint.Mutable result) { ProjectivePoint.Mutable result) {
@ -465,232 +459,249 @@ public class ECOperations {
result.conditionalSet(pi, set); result.conditionalSet(pi, set);
} }
} }
}
final class Default implements PointMultiplier { final static class DefaultMultiplier implements PointMultiplier {
private final AffinePoint affineP; private final ECOperations ecOps;
private final ECOperations ecOps; private final ProjectivePoint.Immutable[] pointMultiples;
private Default(ECOperations ecOps, AffinePoint affineP) { DefaultMultiplier(ECOperations ecOps, AffinePoint affineP) {
this.ecOps = ecOps; this.ecOps = ecOps;
this.affineP = affineP;
// Precompute and cache point multiples
this.pointMultiples = new ProjectivePoint.Immutable[16];
IntegerFieldModuloP field = ecOps.getField();
ImmutableIntegerModuloP zero = field.get0();
// temporaries
MutableIntegerModuloP t0 = zero.mutable();
MutableIntegerModuloP t1 = zero.mutable();
MutableIntegerModuloP t2 = zero.mutable();
MutableIntegerModuloP t3 = zero.mutable();
MutableIntegerModuloP t4 = zero.mutable();
ProjectivePoint.Mutable ps =
new ProjectivePoint.Mutable(field);
ps.getY().setValue(field.get1().mutable());
// 0P is neutral---same as initial result value
pointMultiples[0] = ps.fixed();
ps.setValue(affineP);
// 1P = P
pointMultiples[1] = ps.fixed();
// the rest are calculated using mixed point addition
for (int i = 2; i < 16; i++) {
ecOps.setSum(ps, affineP, t0, t1, t2, t3, t4);
pointMultiples[i] = ps.fixed();
}
}
@Override
public ProjectivePoint.Mutable pointMultiply(byte[] s) {
// 4-bit windowed multiply with branchless lookup.
// The mixed addition is faster, so it is used to construct
// the array at the beginning of the operation.
IntegerFieldModuloP field = ecOps.getField();
ImmutableIntegerModuloP zero = field.get0();
// temporaries
MutableIntegerModuloP t0 = zero.mutable();
MutableIntegerModuloP t1 = zero.mutable();
MutableIntegerModuloP t2 = zero.mutable();
MutableIntegerModuloP t3 = zero.mutable();
MutableIntegerModuloP t4 = zero.mutable();
ProjectivePoint.Mutable result = new ProjectivePoint.Mutable(field);
result.getY().setValue(field.get1().mutable());
ProjectivePoint.Mutable lookupResult = new ProjectivePoint.Mutable(field);
for (int i = s.length - 1; i >= 0; i--) {
double4(result, t0, t1, t2, t3, t4);
int high = (0xFF & s[i]) >>> 4;
PointMultiplier.lookup(pointMultiples, high, lookupResult);
ecOps.setSum(result, lookupResult, t0, t1, t2, t3, t4);
double4(result, t0, t1, t2, t3, t4);
int low = 0xF & s[i];
PointMultiplier.lookup(pointMultiples, low, lookupResult);
ecOps.setSum(result, lookupResult, t0, t1, t2, t3, t4);
} }
@Override return result;
public ProjectivePoint.Mutable pointMultiply(byte[] s) { }
// 4-bit windowed multiply with branchless lookup.
// The mixed addition is faster, so it is used to construct
// the array at the beginning of the operation.
IntegerFieldModuloP field = affineP.getX().getField(); private void double4(ProjectivePoint.Mutable p,
ImmutableIntegerModuloP zero = field.get0(); MutableIntegerModuloP t0, MutableIntegerModuloP t1,
// temporaries MutableIntegerModuloP t2, MutableIntegerModuloP t3,
MutableIntegerModuloP t0 = zero.mutable(); MutableIntegerModuloP t4) {
MutableIntegerModuloP t1 = zero.mutable(); for (int i = 0; i < 4; i++) {
MutableIntegerModuloP t2 = zero.mutable(); ecOps.setDouble(p, t0, t1, t2, t3, t4);
MutableIntegerModuloP t3 = zero.mutable(); }
MutableIntegerModuloP t4 = zero.mutable(); }
}
ProjectivePoint.Mutable result = // Represents a multiplier with a larger precomputed table. Intended to be
new ProjectivePoint.Mutable(field); // used for Basepoint multiplication
result.getY().setValue(field.get1().mutable()); final static class Secp256R1GeneratorMontgomeryMultiplier
implements PointMultiplier {
private static final ECOperations secp256r1Ops = new ECOperations(
MontgomeryIntegerPolynomialP256.ONE.getElement(
CurveDB.P_256.getCurve().getB()), P256OrderField.ONE);
public static final AffinePoint generator = AffinePoint.fromECPoint(
CurveDB.P_256.getGenerator(), secp256r1Ops.getField());
public static final PointMultiplier multiplier =
new Secp256R1GeneratorMontgomeryMultiplier();
ProjectivePoint.Immutable[] pointMultiples = private final ImmutableIntegerModuloP zero;
new ProjectivePoint.Immutable[16]; private final ImmutableIntegerModuloP one;
// 0P is neutral---same as initial result value private final ProjectivePoint.Immutable[][] points;
pointMultiples[0] = result.fixed(); private final BigInteger[] base;
ProjectivePoint.Mutable ps = new ProjectivePoint.Mutable(field); private Secp256R1GeneratorMontgomeryMultiplier() {
ps.setValue(affineP); this(MontgomeryIntegerPolynomialP256.ONE,
// 1P = P new DefaultMultiplier(secp256r1Ops, generator));
pointMultiples[1] = ps.fixed();
// the rest are calculated using mixed point addition // Check that the tables are correctly generated.
for (int i = 2; i < 16; i++) { if (ECOperations.class.desiredAssertionStatus()) {
ecOps.setSum(ps, affineP, t0, t1, t2, t3, t4); verifyTables(this);
pointMultiples[i] = ps.fixed(); }
}
private Secp256R1GeneratorMontgomeryMultiplier(
IntegerFieldModuloP field, PointMultiplier smallTableMultiplier) {
zero = field.get0();
one = field.get1();
// Pre-computed table to speed up the point multiplication.
//
// This is a 4x16 array of ProjectivePoint.Immutable elements.
// The first row contains the following multiples of the
// generator.
//
// index | point
// --------+----------------
// 0x0000 | 0G
// 0x0001 | 1G
// 0x0002 | (2^64)G
// 0x0003 | (2^64 + 1)G
// 0x0004 | 2^128G
// 0x0005 | (2^128 + 1)G
// 0x0006 | (2^128 + 2^64)G
// 0x0007 | (2^128 + 2^64 + 1)G
// 0x0008 | 2^192G
// 0x0009 | (2^192 + 1)G
// 0x000A | (2^192 + 2^64)G
// 0x000B | (2^192 + 2^64 + 1)G
// 0x000C | (2^192 + 2^128)G
// 0x000D | (2^192 + 2^128 + 1)G
// 0x000E | (2^192 + 2^128 + 2^64)G
// 0x000F | (2^192 + 2^128 + 2^64 + 1)G
//
// For the other 3 rows, points[i][j] = 2^16 * (points[i-1][j].
// Generate the pre-computed tables. This block may be
// replaced with hard-coded tables in order to speed up
// the class loading.
points = new ProjectivePoint.Immutable[4][16];
BigInteger[] factors = new BigInteger[] {
BigInteger.ONE,
BigInteger.TWO.pow(64),
BigInteger.TWO.pow(128),
BigInteger.TWO.pow(192)
};
base = new BigInteger[16];
base[0] = BigInteger.ZERO;
base[1] = BigInteger.ONE;
base[2] = factors[1];
for (int i = 3; i < 16; i++) {
base[i] = BigInteger.ZERO;
for (int k = 0; k < 4; k++) {
if (((i >>> k) & 0x01) != 0) {
base[i] = base[i].add(factors[k]);
}
} }
ProjectivePoint.Mutable lookupResult = ps.mutable();
for (int i = s.length - 1; i >= 0; i--) {
double4(result, t0, t1, t2, t3, t4);
int high = (0xFF & s[i]) >>> 4;
lookup(pointMultiples, high, lookupResult);
ecOps.setSum(result, lookupResult, t0, t1, t2, t3, t4);
double4(result, t0, t1, t2, t3, t4);
int low = 0xF & s[i];
lookup(pointMultiples, low, lookupResult);
ecOps.setSum(result, lookupResult, t0, t1, t2, t3, t4);
}
return result;
} }
private void double4(ProjectivePoint.Mutable p, for (int d = 0; d < 4; d++) {
MutableIntegerModuloP t0, MutableIntegerModuloP t1, for (int w = 0; w < 16; w++) {
MutableIntegerModuloP t2, MutableIntegerModuloP t3, BigInteger bi = base[w];
MutableIntegerModuloP t4) { if (d != 0) {
for (int i = 0; i < 4; i++) { bi = bi.multiply(BigInteger.TWO.pow(d * 16));
ecOps.setDouble(p, t0, t1, t2, t3, t4); }
if (w == 0) {
points[d][0] = new ProjectivePoint.Immutable(
zero.fixed(), one.fixed(), zero.fixed());
} else {
byte[] s = bi.toByteArray();
ArrayUtil.reverse(s);
ProjectivePoint.Mutable m = smallTableMultiplier.pointMultiply(s);
points[d][w] = m.fixed();
}
} }
} }
} }
final class Secp256R1GeneratorMultiplier implements PointMultiplier { public ProjectivePoint.Mutable pointMultiply(byte[] s) {
private static final ECPoint generator = MutableIntegerModuloP t0 = zero.mutable();
CurveDB.P_256.getGenerator(); MutableIntegerModuloP t1 = zero.mutable();
private static final PointMultiplier multiplier = MutableIntegerModuloP t2 = zero.mutable();
new Secp256R1GeneratorMultiplier(); MutableIntegerModuloP t3 = zero.mutable();
MutableIntegerModuloP t4 = zero.mutable();
private static final ImmutableIntegerModuloP zero = ProjectivePoint.Mutable d = new ProjectivePoint.Mutable(
IntegerPolynomialP256.ONE.get0(); zero.mutable(),
private static final ImmutableIntegerModuloP one = one.mutable(),
IntegerPolynomialP256.ONE.get1(); zero.mutable());
ProjectivePoint.Mutable r = d.mutable();
for (int i = 15; i >= 0; i--) {
secp256r1Ops.setDouble(d, t0, t1, t2, t3, t4);
for (int j = 3; j >= 0; j--) {
int pos = i + j * 16;
int index = (bit(s, pos + 192) << 3) |
(bit(s, pos + 128) << 2) |
(bit(s, pos + 64) << 1) |
bit(s, pos);
@Override PointMultiplier.lookup(points[j], index, r);
public ProjectivePoint.Mutable pointMultiply(byte[] s) { secp256r1Ops.setSum(d, r, t0, t1, t2, t3, t4);
MutableIntegerModuloP t0 = zero.mutable();
MutableIntegerModuloP t1 = zero.mutable();
MutableIntegerModuloP t2 = zero.mutable();
MutableIntegerModuloP t3 = zero.mutable();
MutableIntegerModuloP t4 = zero.mutable();
ProjectivePoint.Mutable d = new ProjectivePoint.Mutable(
zero.mutable(),
one.mutable(),
zero.mutable());
ProjectivePoint.Mutable r = d.mutable();
for (int i = 15; i >= 0; i--) {
secp256r1Ops.setDouble(d, t0, t1, t2, t3, t4);
for (int j = 3; j >= 0; j--) {
int pos = i + j * 16;
int index = (bit(s, pos + 192) << 3) |
(bit(s, pos + 128) << 2) |
(bit(s, pos + 64) << 1) |
bit(s, pos);
lookup(P256.points[j], index, r);
secp256r1Ops.setSum(d, r, t0, t1, t2, t3, t4);
}
} }
return d;
} }
private static int bit(byte[] k, int i) { return d;
return (k[i >> 3] >> (i & 0x07)) & 0x01; }
}
// Lazy loading of the tables. private static int bit(byte[] k, int i) {
private static final class P256 { return (k[i >> 3] >> (i & 0x07)) & 0x01;
// Pre-computed table to speed up the point multiplication. }
//
// This is a 4x16 array of ProjectivePoint.Immutable elements.
// The first row contains the following multiples of the
// generator.
//
// index | point
// --------+----------------
// 0x0000 | 0G
// 0x0001 | 1G
// 0x0002 | (2^64)G
// 0x0003 | (2^64 + 1)G
// 0x0004 | 2^128G
// 0x0005 | (2^128 + 1)G
// 0x0006 | (2^128 + 2^64)G
// 0x0007 | (2^128 + 2^64 + 1)G
// 0x0008 | 2^192G
// 0x0009 | (2^192 + 1)G
// 0x000A | (2^192 + 2^64)G
// 0x000B | (2^192 + 2^64 + 1)G
// 0x000C | (2^192 + 2^128)G
// 0x000D | (2^192 + 2^128 + 1)G
// 0x000E | (2^192 + 2^128 + 2^64)G
// 0x000F | (2^192 + 2^128 + 2^64 + 1)G
//
// For the other 3 rows, points[i][j] = 2^16 * (points[i-1][j].
private static final ProjectivePoint.Immutable[][] points;
// Generate the pre-computed tables. This block may be protected void verifyTables(PointMultiplier multiplier) {
// replaced with hard-coded tables in order to speed up for (int d = 0; d < 4; d++) {
// the class loading. for (int w = 0; w < 16; w++) {
static { BigInteger bi = base[w];
points = new ProjectivePoint.Immutable[4][16]; if (d != 0) {
BigInteger[] factors = new BigInteger[] { bi = bi.multiply(BigInteger.TWO.pow(d * 16));
BigInteger.ONE,
BigInteger.TWO.pow(64),
BigInteger.TWO.pow(128),
BigInteger.TWO.pow(192)
};
BigInteger[] base = new BigInteger[16];
base[0] = BigInteger.ZERO;
base[1] = BigInteger.ONE;
base[2] = factors[1];
for (int i = 3; i < 16; i++) {
base[i] = BigInteger.ZERO;
for (int k = 0; k < 4; k++) {
if (((i >>> k) & 0x01) != 0) {
base[i] = base[i].add(factors[k]);
}
}
} }
if (w != 0) {
byte[] s = new byte[32];
byte[] b = bi.toByteArray();
ArrayUtil.reverse(b);
System.arraycopy(b, 0, s, 0, b.length);
for (int d = 0; d < 4; d++) { // Compare this multiplier to the table
for (int w = 0; w < 16; w++) { // (generated by Default multiplier)
BigInteger bi = base[w]; AffinePoint m = multiplier.pointMultiply(s).asAffine();
if (d != 0) { AffinePoint v = points[d][w].asAffine();
bi = bi.multiply(BigInteger.TWO.pow(d * 16)); if (!m.equals(v)) {
} java.util.HexFormat hex = java.util.HexFormat.of();
if (w == 0) { throw new RuntimeException(
points[d][0] = new ProjectivePoint.Immutable( "Bad multiple found at [" +d+"]["+w+"]" +
zero.fixed(), one.fixed(), zero.fixed()); hex.formatHex(s) + " " + m.getX().asBigInteger()
} else { );
PointMultiplier multiplier = new Default(
secp256r1Ops, AffinePoint.fromECPoint(
generator, zero.getField()));
byte[] s = bi.toByteArray();
ArrayUtil.reverse(s);
ProjectivePoint.Mutable m =
multiplier.pointMultiply(s);
points[d][w] = m.setValue(m.asAffine()).fixed();
}
}
}
// Check that the tables are correctly generated.
if (ECOperations.class.desiredAssertionStatus()) {
verifyTables(base);
}
}
private static void verifyTables(BigInteger[] base) {
for (int d = 0; d < 4; d++) {
for (int w = 0; w < 16; w++) {
BigInteger bi = base[w];
if (d != 0) {
bi = bi.multiply(BigInteger.TWO.pow(d * 16));
}
if (w != 0) {
byte[] s = new byte[32];
byte[] b = bi.toByteArray();
ArrayUtil.reverse(b);
System.arraycopy(b, 0, s, 0, b.length);
ProjectivePoint.Mutable m =
multiplier.pointMultiply(s);
ProjectivePoint.Immutable v =
m.setValue(m.asAffine()).fixed();
if (!v.getX().asBigInteger().equals(
points[d][w].getX().asBigInteger()) ||
!v.getY().asBigInteger().equals(
points[d][w].getY().asBigInteger())) {
throw new RuntimeException();
}
}
} }
} }
} }

45
src/java.base/share/classes/sun/security/ec/point/AffinePoint.java
View file

@ -26,6 +26,7 @@ package sun.security.ec.point;
import sun.security.util.math.ImmutableIntegerModuloP; import sun.security.util.math.ImmutableIntegerModuloP;
import sun.security.util.math.IntegerFieldModuloP; import sun.security.util.math.IntegerFieldModuloP;
import sun.security.util.math.IntegerMontgomeryFieldModuloP;
import java.security.spec.ECPoint; import java.security.spec.ECPoint;
import java.util.Objects; import java.util.Objects;
@ -54,14 +55,30 @@ public class AffinePoint {
} }
public ECPoint toECPoint() { public ECPoint toECPoint() {
return new ECPoint(x.asBigInteger(), y.asBigInteger()); return new ECPoint(getX().asBigInteger(), getY().asBigInteger());
} }
public ImmutableIntegerModuloP getX() { public ImmutableIntegerModuloP getX() {
return getX(true);
}
public ImmutableIntegerModuloP getX(boolean fieldCheck) {
IntegerFieldModuloP field = x.getField();
if (fieldCheck && field instanceof IntegerMontgomeryFieldModuloP) {
return ((IntegerMontgomeryFieldModuloP)field).fromMontgomery(x);
}
return x; return x;
} }
public ImmutableIntegerModuloP getY() { public ImmutableIntegerModuloP getY() {
return getY(true);
}
public ImmutableIntegerModuloP getY(boolean fieldCheck) {
IntegerFieldModuloP field = y.getField();
if (fieldCheck && field instanceof IntegerMontgomeryFieldModuloP) {
return ((IntegerMontgomeryFieldModuloP)field).fromMontgomery(y);
}
return y; return y;
} }
@ -71,8 +88,30 @@ public class AffinePoint {
return false; return false;
} }
AffinePoint p = (AffinePoint) obj; AffinePoint p = (AffinePoint) obj;
boolean xEquals = x.asBigInteger().equals(p.x.asBigInteger()); boolean xEquals, yEquals;
boolean yEquals = y.asBigInteger().equals(p.y.asBigInteger()); boolean thisMont = x.getField() instanceof IntegerMontgomeryFieldModuloP;
boolean objMont = p.x.getField() instanceof IntegerMontgomeryFieldModuloP;
if (thisMont ^ objMont == false) {
// both fields same
xEquals = x.asBigInteger().equals(p.x.asBigInteger());
yEquals = y.asBigInteger().equals(p.y.asBigInteger());
} else if (thisMont) {
// mismatched fields should not happen in production, but useful in
// testing
IntegerMontgomeryFieldModuloP field =
(IntegerMontgomeryFieldModuloP)x.getField();
xEquals = x.asBigInteger().equals(
field.getElement(p.x.asBigInteger()).asBigInteger());
yEquals = y.asBigInteger().equals(
field.getElement(p.y.asBigInteger()).asBigInteger());
} else {
IntegerMontgomeryFieldModuloP field =
(IntegerMontgomeryFieldModuloP)p.x.getField();
xEquals = field.getElement(
x.asBigInteger()).asBigInteger().equals(p.x.asBigInteger());
yEquals = field.getElement(
y.asBigInteger()).asBigInteger().equals(p.y.asBigInteger());
}
return xEquals && yEquals; return xEquals && yEquals;
} }

10
src/java.base/share/classes/sun/security/ec/point/ProjectivePoint.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -25,6 +25,7 @@
package sun.security.ec.point; package sun.security.ec.point;
import sun.security.util.math.*; import sun.security.util.math.*;
import jdk.internal.vm.annotation.ForceInline;
/** /**
* Elliptic curve point in projective coordinates (X, Y, Z) where * Elliptic curve point in projective coordinates (X, Y, Z) where
@ -145,6 +146,7 @@ public abstract class ProjectivePoint
return conditionalSet(pp, set); return conditionalSet(pp, set);
} }
@ForceInline
private <T extends IntegerModuloP> private <T extends IntegerModuloP>
Mutable conditionalSet(ProjectivePoint<T> pp, int set) { Mutable conditionalSet(ProjectivePoint<T> pp, int set) {
@ -157,9 +159,9 @@ public abstract class ProjectivePoint
@Override @Override
public Mutable setValue(AffinePoint p) { public Mutable setValue(AffinePoint p) {
x.setValue(p.getX()); x.setValue(p.getX(false));
y.setValue(p.getY()); y.setValue(p.getY(false));
z.setValue(p.getX().getField().get1()); z.setValue(p.getX(false).getField().get1());
return this; return this;
} }

40
src/java.base/share/classes/sun/security/util/math/IntegerMontgomeryFieldModuloP.java Normal file
View file

@ -0,0 +1,40 @@
/*
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.util.math;
import java.math.BigInteger;
/**
* An interface for the field of integers modulo a prime number. An
* implementation of this interface can be used to get properties of the
* field and to produce field elements of type ImmutableIntegerModuloP from
* other objects and representations of field elements.
*/
public interface IntegerMontgomeryFieldModuloP extends IntegerFieldModuloP {
ImmutableIntegerModuloP fromMontgomery(ImmutableIntegerModuloP m);
IntegerFieldModuloP residueField();
}

95
src/java.base/share/classes/sun/security/util/math/intpoly/IntegerPolynomial.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -32,6 +32,9 @@ import java.nio.ByteBuffer;
import java.nio.ByteOrder; import java.nio.ByteOrder;
import java.util.Arrays; import java.util.Arrays;
import jdk.internal.vm.annotation.ForceInline;
import jdk.internal.vm.annotation.IntrinsicCandidate;
/** /**
* A large number polynomial representation using sparse limbs of signed * A large number polynomial representation using sparse limbs of signed
* long (64-bit) values. Limb values will always fit within a long, so inputs * long (64-bit) values. Limb values will always fit within a long, so inputs
@ -62,10 +65,9 @@ import java.util.Arrays;
public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
permits IntegerPolynomial1305, IntegerPolynomial25519, permits IntegerPolynomial1305, IntegerPolynomial25519,
IntegerPolynomial448, IntegerPolynomialP256, IntegerPolynomial448, IntegerPolynomialP256,
IntegerPolynomialP384, IntegerPolynomialP521, MontgomeryIntegerPolynomialP256, IntegerPolynomialP384,
IntegerPolynomialModBinP, P256OrderField, IntegerPolynomialP521, IntegerPolynomialModBinP, P256OrderField,
P384OrderField, P521OrderField, P384OrderField, P521OrderField, Curve25519OrderField,
Curve25519OrderField,
Curve448OrderField { Curve448OrderField {
protected static final BigInteger TWO = BigInteger.valueOf(2); protected static final BigInteger TWO = BigInteger.valueOf(2);
@ -74,7 +76,8 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
private final BigInteger modulus; private final BigInteger modulus;
protected final int bitsPerLimb; protected final int bitsPerLimb;
private final long[] posModLimbs; private final long[] posModLimbs;
private final int maxAdds; private final int maxAddsMul; // max additions before a multiplication
private final int maxAddsAdd; // max additions before an addition
/** /**
* Reduce an IntegerPolynomial representation (a) and store the result * Reduce an IntegerPolynomial representation (a) and store the result
@ -87,11 +90,12 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
* store the result in an IntegerPolynomial representation in a. Requires * store the result in an IntegerPolynomial representation in a. Requires
* that a.length == numLimbs. * that a.length == numLimbs.
*/ */
protected void multByInt(long[] a, long b) { protected int multByInt(long[] a, long b) {
for (int i = 0; i < a.length; i++) { for (int i = 0; i < a.length; i++) {
a[i] *= b; a[i] *= b;
} }
reduce(a); reduce(a);
return 0;
} }
/** /**
@ -100,7 +104,7 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
* a.length == b.length == r.length == numLimbs. It is allowed for a and r * a.length == b.length == r.length == numLimbs. It is allowed for a and r
* to be the same array. * to be the same array.
*/ */
protected abstract void mult(long[] a, long[] b, long[] r); protected abstract int mult(long[] a, long[] b, long[] r);
/** /**
* Multiply an IntegerPolynomial representation (a) with itself and store * Multiply an IntegerPolynomial representation (a) with itself and store
@ -108,19 +112,23 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
* a.length == r.length == numLimbs. It is allowed for a and r * a.length == r.length == numLimbs. It is allowed for a and r
* to be the same array. * to be the same array.
*/ */
protected abstract void square(long[] a, long[] r); protected abstract int square(long[] a, long[] r);
IntegerPolynomial(int bitsPerLimb, IntegerPolynomial(int bitsPerLimb,
int numLimbs, int numLimbs,
int maxAdds, int maxAddsMul,
BigInteger modulus) { BigInteger modulus) {
this.numLimbs = numLimbs; this.numLimbs = numLimbs;
this.modulus = modulus; this.modulus = modulus;
this.bitsPerLimb = bitsPerLimb; this.bitsPerLimb = bitsPerLimb;
this.maxAdds = maxAdds; this.maxAddsMul = maxAddsMul;
if (bitsPerLimb>32) {
this.maxAddsAdd = 64 - bitsPerLimb;
} else {
this.maxAddsAdd = 32 - bitsPerLimb;
}
posModLimbs = setPosModLimbs(); posModLimbs = setPosModLimbs();
} }
@ -135,7 +143,7 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
} }
public int getMaxAdds() { public int getMaxAdds() {
return maxAdds; return maxAddsMul;
} }
@Override @Override
@ -327,10 +335,9 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
} }
protected void setLimbsValuePositive(BigInteger v, long[] limbs) { protected void setLimbsValuePositive(BigInteger v, long[] limbs) {
assert bitsPerLimb < 32;
long limbMask = (1L << bitsPerLimb) - 1; long limbMask = (1L << bitsPerLimb) - 1;
for (int i = 0; i < limbs.length; i++) { for (int i = 0; i < limbs.length; i++) {
limbs[i] = v.intValue() & limbMask; limbs[i] = v.longValue() & limbMask;
v = v.shiftRight(bitsPerLimb); v = v.shiftRight(bitsPerLimb);
} }
} }
@ -449,6 +456,8 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
* will be unchanged. If set==1, then the values of b will be assigned to a. * will be unchanged. If set==1, then the values of b will be assigned to a.
* The behavior is undefined if swap has any value other than 0 or 1. * The behavior is undefined if swap has any value other than 0 or 1.
*/ */
@ForceInline
@IntrinsicCandidate
protected static void conditionalAssign(int set, long[] a, long[] b) { protected static void conditionalAssign(int set, long[] a, long[] b) {
int maskValue = -set; int maskValue = -set;
for (int i = 0; i < a.length; i++) { for (int i = 0; i < a.length; i++) {
@ -557,14 +566,12 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
Element b = (Element)genB; Element b = (Element)genB;
// Reduce if required. // Reduce if required.
// if (numAdds >= maxAdds) { if (numAdds > maxAddsAdd) {
if (numAdds > 32 - bitsPerLimb) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
// if (b.numAdds >= maxAdds) { if (b.numAdds > maxAddsAdd) {
if (b.numAdds > 32 - bitsPerLimb) {
reduce(b.limbs); reduce(b.limbs);
b.numAdds = 0; b.numAdds = 0;
} }
@ -586,7 +593,7 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
newLimbs[i] = -limbs[i]; newLimbs[i] = -limbs[i];
} }
return new ImmutableElement(newLimbs, numAdds); return new ImmutableElement(newLimbs, numAdds+1);
} }
protected long[] cloneLow(long[] limbs) { protected long[] cloneLow(long[] limbs) {
@ -604,32 +611,32 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
Element b = (Element)genB; Element b = (Element)genB;
// Reduce if required. // Reduce if required.
if (numAdds > maxAdds) { if (numAdds > maxAddsMul) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
if (b.numAdds > maxAdds) { if (b.numAdds > maxAddsMul) {
reduce(b.limbs); reduce(b.limbs);
b.numAdds = 0; b.numAdds = 0;
} }
long[] newLimbs = new long[limbs.length]; long[] newLimbs = new long[limbs.length];
mult(limbs, b.limbs, newLimbs); int numAdds = mult(limbs, b.limbs, newLimbs);
return new ImmutableElement(newLimbs, 0); return new ImmutableElement(newLimbs, numAdds);
} }
@Override @Override
public ImmutableElement square() { public ImmutableElement square() {
// Reduce if required. // Reduce if required.
if (numAdds > maxAdds) { if (numAdds > maxAddsMul) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
long[] newLimbs = new long[limbs.length]; long[] newLimbs = new long[limbs.length];
IntegerPolynomial.this.square(limbs, newLimbs); int numAdds = IntegerPolynomial.this.square(limbs, newLimbs);
return new ImmutableElement(newLimbs, 0); return new ImmutableElement(newLimbs, numAdds);
} }
public void addModPowerTwo(IntegerModuloP arg, byte[] result) { public void addModPowerTwo(IntegerModuloP arg, byte[] result) {
@ -637,12 +644,12 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
Element other = (Element)arg; Element other = (Element)arg;
// Reduce if required. // Reduce if required.
if (numAdds > 32 - bitsPerLimb) { if (numAdds > maxAddsAdd) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
if (other.numAdds > 32 - bitsPerLimb) { if (other.numAdds > maxAddsAdd) {
reduce(other.limbs); reduce(other.limbs);
other.numAdds = 0; other.numAdds = 0;
} }
@ -734,32 +741,30 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
Element b = (Element)genB; Element b = (Element)genB;
// Reduce if required. // Reduce if required.
if (numAdds > maxAdds) { if (numAdds > maxAddsMul) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
if (b.numAdds > maxAdds) { if (b.numAdds > maxAddsMul) {
reduce(b.limbs); reduce(b.limbs);
b.numAdds = 0; b.numAdds = 0;
} }
mult(limbs, b.limbs, limbs); numAdds = mult(limbs, b.limbs, limbs);
numAdds = 0;
return this; return this;
} }
@Override @Override
public MutableElement setProduct(SmallValue v) { public MutableElement setProduct(SmallValue v) {
// Reduce if required. // Reduce if required.
if (numAdds > maxAdds) { if (numAdds > maxAddsMul) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
int value = ((Limb)v).value; int value = ((Limb)v).value;
multByInt(limbs, value); numAdds += multByInt(limbs, value);
numAdds = 0;
return this; return this;
} }
@ -769,14 +774,12 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
Element b = (Element)genB; Element b = (Element)genB;
// Reduce if required. // Reduce if required.
// if (numAdds >= maxAdds) { if (numAdds > maxAddsAdd) {
if (numAdds > 32 - bitsPerLimb) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
// if (b.numAdds >= maxAdds) { if (b.numAdds > maxAddsAdd) {
if (b.numAdds > 32 - bitsPerLimb) {
reduce(b.limbs); reduce(b.limbs);
b.numAdds = 0; b.numAdds = 0;
} }
@ -795,14 +798,12 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
Element b = (Element)genB; Element b = (Element)genB;
// Reduce if required. // Reduce if required.
// if (numAdds >= maxAdds) { if (numAdds > maxAddsAdd) {
if (numAdds > 32 - bitsPerLimb) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
// if (b.numAdds >= maxAdds) { if (b.numAdds > maxAddsAdd) {
if (b.numAdds > 32 - bitsPerLimb) {
reduce(b.limbs); reduce(b.limbs);
b.numAdds = 0; b.numAdds = 0;
} }
@ -818,13 +819,12 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
@Override @Override
public MutableElement setSquare() { public MutableElement setSquare() {
// Reduce if required. // Reduce if required.
if (numAdds > maxAdds) { if (numAdds > maxAddsMul) {
reduce(limbs); reduce(limbs);
numAdds = 0; numAdds = 0;
} }
IntegerPolynomial.this.square(limbs, limbs); numAdds = IntegerPolynomial.this.square(limbs, limbs);;
numAdds = 0;
return this; return this;
} }
@ -833,6 +833,7 @@ public abstract sealed class IntegerPolynomial implements IntegerFieldModuloP
for (int i = 0; i < limbs.length; i++) { for (int i = 0; i < limbs.length; i++) {
limbs[i] = -limbs[i]; limbs[i] = -limbs[i];
} }
numAdds++;
return this; return this;
} }
} }

8
src/java.base/share/classes/sun/security/util/math/intpoly/IntegerPolynomial1305.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2018, 2022, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -50,7 +50,7 @@ public final class IntegerPolynomial1305 extends IntegerPolynomial {
super(BITS_PER_LIMB, NUM_LIMBS, 1, MODULUS); super(BITS_PER_LIMB, NUM_LIMBS, 1, MODULUS);
} }
protected void mult(long[] a, long[] b, long[] r) { protected int mult(long[] a, long[] b, long[] r) {
// Use grade-school multiplication into primitives to avoid the // Use grade-school multiplication into primitives to avoid the
// temporary array allocation. This is equivalent to the following // temporary array allocation. This is equivalent to the following
@ -73,6 +73,7 @@ public final class IntegerPolynomial1305 extends IntegerPolynomial {
long c8 = (a[4] * b[4]); long c8 = (a[4] * b[4]);
carryReduce(r, c0, c1, c2, c3, c4, c5, c6, c7, c8); carryReduce(r, c0, c1, c2, c3, c4, c5, c6, c7, c8);
return 0;
} }
private void carryReduce(long[] r, long c0, long c1, long c2, long c3, private void carryReduce(long[] r, long c0, long c1, long c2, long c3,
@ -99,7 +100,7 @@ public final class IntegerPolynomial1305 extends IntegerPolynomial {
} }
@Override @Override
protected void square(long[] a, long[] r) { protected int square(long[] a, long[] r) {
// Use grade-school multiplication with a simple squaring optimization. // Use grade-school multiplication with a simple squaring optimization.
// Multiply into primitives to avoid the temporary array allocation. // Multiply into primitives to avoid the temporary array allocation.
// This is equivalent to the following code: // This is equivalent to the following code:
@ -122,6 +123,7 @@ public final class IntegerPolynomial1305 extends IntegerPolynomial {
long c8 = (a[4] * a[4]); long c8 = (a[4] * a[4]);
carryReduce(r, c0, c1, c2, c3, c4, c5, c6, c7, c8); carryReduce(r, c0, c1, c2, c3, c4, c5, c6, c7, c8);
return 0;
} }
@Override @Override

9
src/java.base/share/classes/sun/security/util/math/intpoly/IntegerPolynomialModBinP.java
View file

@ -1,5 +1,5 @@
/* /*
* Copyright (c) 2020, 2022, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2020, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* *
* This code is free software; you can redistribute it and/or modify it * This code is free software; you can redistribute it and/or modify it
@ -131,11 +131,12 @@ public sealed class IntegerPolynomialModBinP extends IntegerPolynomial {
} }
@Override @Override
protected void mult(long[] a, long[] b, long[] r) { protected int mult(long[] a, long[] b, long[] r) {
long[] c = new long[2 * numLimbs]; long[] c = new long[2 * numLimbs];
multOnly(a, b, c); multOnly(a, b, c);
carryReduce(c, r); carryReduce(c, r);
return 0;
} }
private void modReduceInBits(long[] limbs, int index, int bits, long x) { private void modReduceInBits(long[] limbs, int index, int bits, long x) {
@ -188,7 +189,7 @@ public sealed class IntegerPolynomialModBinP extends IntegerPolynomial {
} }
@Override @Override
protected void square(long[] a, long[] r) { protected int square(long[] a, long[] r) {
long[] c = new long[2 * numLimbs]; long[] c = new long[2 * numLimbs];
for (int i = 0; i < numLimbs; i++) { for (int i = 0; i < numLimbs; i++) {
@ -199,7 +200,7 @@ public sealed class IntegerPolynomialModBinP extends IntegerPolynomial {
} }
carryReduce(c, r); carryReduce(c, r);
return 0;
} }
/** /**

560
src/java.base/share/classes/sun/security/util/math/intpoly/MontgomeryIntegerPolynomialP256.java Normal file
View file

@ -0,0 +1,560 @@
/*
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.util.math.intpoly;
import sun.security.util.math.ImmutableIntegerModuloP;
import sun.security.util.math.IntegerMontgomeryFieldModuloP;
import sun.security.util.math.SmallValue;
import sun.security.util.math.IntegerFieldModuloP;
import java.lang.Math;
import java.math.BigInteger;
import jdk.internal.vm.annotation.IntrinsicCandidate;
// Reference:
// - [1] Shay Gueron and Vlad Krasnov "Fast Prime Field Elliptic Curve
// Cryptography with 256 Bit Primes"
//
public final class MontgomeryIntegerPolynomialP256 extends IntegerPolynomial
implements IntegerMontgomeryFieldModuloP {
private static final int BITS_PER_LIMB = 52;
private static final int NUM_LIMBS = 5;
private static final int MAX_ADDS = 0;
public static final BigInteger MODULUS = evaluateModulus();
private static final long LIMB_MASK = -1L >>> (64 - BITS_PER_LIMB);
public static final MontgomeryIntegerPolynomialP256 ONE = new MontgomeryIntegerPolynomialP256();
// h = 2^(2*260)%p = 0x4fffffffdfffffffffffffffefffffffbffffffff000000000000000300
// oneActual = 1
// oneMont = (1*2^260) mod p
// modulus = p
private static final long[] h = new long[] {
0x0000000000000300L, 0x000ffffffff00000L, 0x000ffffefffffffbL,
0x000fdfffffffffffL, 0x0000000004ffffffL };
private static final long[] oneActual = new long[] {
0x0000000000000001L, 0x0000000000000000L, 0x0000000000000000L,
0x0000000000000000L, 0x0000000000000000L };
private static final long[] oneMont = new long[] {
0x0000000000000010L, 0x000f000000000000L, 0x000fffffffffffffL,
0x000ffeffffffffffL, 0x00000000000fffffL };
private static final long[] zero = new long[] {
0x0000000000000000L, 0x0000000000000000L, 0x0000000000000000L,
0x0000000000000000L, 0x0000000000000000L };
private static final long[] modulus = new long[] {
0x000fffffffffffffL, 0x00000fffffffffffL, 0x0000000000000000L,
0x0000001000000000L, 0x0000ffffffff0000L };
private MontgomeryIntegerPolynomialP256() {
super(BITS_PER_LIMB, NUM_LIMBS, MAX_ADDS, MODULUS);
}
public IntegerFieldModuloP residueField() {
return IntegerPolynomialP256.ONE;
}
// (224%nat,-1)::(192%nat,1)::(96%nat,1)::(0%nat,-1)::nil.
private static BigInteger evaluateModulus() {
BigInteger result = BigInteger.valueOf(2).pow(256);
result = result.subtract(BigInteger.valueOf(1).shiftLeft(224));
result = result.add(BigInteger.valueOf(1).shiftLeft(192));
result = result.add(BigInteger.valueOf(1).shiftLeft(96));
result = result.subtract(BigInteger.valueOf(1));
return result;
}
@Override
public ImmutableElement get0() {
return new ImmutableElement(zero, 0);
}
// One in montgomery domain: (1*2^260) mod p
@Override
public ImmutableElement get1() {
return new ImmutableElement(oneMont, 0);
}
// Convert v to Montgomery domain
@Override
public ImmutableElement getElement(BigInteger v) {
long[] vLimbs = new long[NUM_LIMBS];
long[] montLimbs = new long[NUM_LIMBS];
setLimbsValuePositive(v, vLimbs);
// Convert to Montgomery domain
int numAdds = mult(vLimbs, h, montLimbs);
return new ImmutableElement(montLimbs, numAdds);
}
@Override
public SmallValue getSmallValue(int value) {
// Explicitely here as reminder that SmallValue stays in residue domain
// See multByInt below for how this is used
return super.getSmallValue(value);
}
/*
* This function is used by IntegerPolynomial.setProduct(SmallValue v) to
* multiply by a small constant (i.e. (int) 1,2,3,4). Instead of doing a
* montgomery conversion followed by a montgomery multiplication, just use
* the spare top (64-BITS_PER_LIMB) bits to multiply by a constant. (See [1]
* Section 4 )
*
* Will return an unreduced value
*/
@Override
protected int multByInt(long[] a, long b) {
assert (b < (1 << BITS_PER_LIMB));
for (int i = 0; i < a.length; i++) {
a[i] *= b;
}
return (int) (b - 1);
}
@Override
public ImmutableIntegerModuloP fromMontgomery(ImmutableIntegerModuloP n) {
assert n.getField() == MontgomeryIntegerPolynomialP256.ONE;
ImmutableElement nn = (ImmutableElement) n;
long[] r1 = new long[NUM_LIMBS];
long[] r2 = new long[2 * NUM_LIMBS];
long[] limbs = nn.getLimbs();
reduce(limbs);
MontgomeryIntegerPolynomialP256.ONE.mult(limbs, oneActual, r1);
reduce(r1);
halfLimbs(r1, r2);
return IntegerPolynomialP256.ONE.new ImmutableElement(r2, 0);
}
private void halfLimbs(long[] a, long[] r) {
final long HALF_BITS_LIMB = BITS_PER_LIMB / 2;
final long HALF_LIMB_MASK = -1L >>> (64 - HALF_BITS_LIMB);
r[0] = a[0] & HALF_LIMB_MASK;
r[1] = a[0] >> HALF_BITS_LIMB;
r[2] = a[1] & HALF_LIMB_MASK;
r[3] = a[1] >> HALF_BITS_LIMB;
r[4] = a[2] & HALF_LIMB_MASK;
r[5] = a[2] >> HALF_BITS_LIMB;
r[6] = a[3] & HALF_LIMB_MASK;
r[7] = a[3] >> HALF_BITS_LIMB;
r[8] = a[4] & HALF_LIMB_MASK;
r[9] = a[4] >> HALF_BITS_LIMB;
}
@Override
protected int square(long[] a, long[] r) {
return mult(a, a, r);
}
/**
* Unrolled Word-by-Word Montgomery Multiplication r = a * b * 2^-260 (mod P)
*
* See [1] Figure 5. "Algorithm 2: Word-by-Word Montgomery Multiplication
* for a Montgomery Friendly modulus p". Note: Step 6. Skipped; Instead use
* numAdds to reuse existing overflow logic.
*/
@IntrinsicCandidate
protected int mult(long[] a, long[] b, long[] r) {
long aa0 = a[0];
long aa1 = a[1];
long aa2 = a[2];
long aa3 = a[3];
long aa4 = a[4];
long bb0 = b[0];
long bb1 = b[1];
long bb2 = b[2];
long bb3 = b[3];
long bb4 = b[4];
final long shift1 = 64 - BITS_PER_LIMB; // 12
final long shift2 = BITS_PER_LIMB; // 40
long d0, d1, d2, d3, d4; // low digits from multiplication
long dd0, dd1, dd2, dd3, dd4; // high digits from multiplication
long n, n0, n1, n2, n3, n4,
nn0, nn1, nn2, nn3, nn4; // modulus multiple digits
long c0, c1, c2, c3, c4, c5, c6, c7, c8, c9; // multiplication result
// digits for each column
// Row 0 - multiply by aa0 and reduce out c0
d0 = aa0 * bb0;
dd0 = Math.unsignedMultiplyHigh(aa0, bb0) << shift1 | (d0 >>> shift2);
d0 &= LIMB_MASK;
n = d0;
d1 = aa0 * bb1;
dd1 = Math.unsignedMultiplyHigh(aa0, bb1) << shift1 | (d1 >>> shift2);
d1 &= LIMB_MASK;
d2 = aa0 * bb2;
dd2 = Math.unsignedMultiplyHigh(aa0, bb2) << shift1 | (d2 >>> shift2);
d2 &= LIMB_MASK;
d3 = aa0 * bb3;
dd3 = Math.unsignedMultiplyHigh(aa0, bb3) << shift1 | (d3 >>> shift2);
d3 &= LIMB_MASK;
d4 = aa0 * bb4;
dd4 = Math.unsignedMultiplyHigh(aa0, bb4) << shift1 | (d4 >>> shift2);
d4 &= LIMB_MASK;
n0 = n * modulus[0];
nn0 = Math.unsignedMultiplyHigh(n, modulus[0]) << shift1 | (n0 >>> shift2);
n0 &= LIMB_MASK;
n1 = n * modulus[1];
nn1 = Math.unsignedMultiplyHigh(n, modulus[1]) << shift1 | (n1 >>> shift2);
n1 &= LIMB_MASK;
n2 = n * modulus[2];
nn2 = Math.unsignedMultiplyHigh(n, modulus[2]) << shift1 | (n2 >>> shift2);
n2 &= LIMB_MASK;
n3 = n * modulus[3];
nn3 = Math.unsignedMultiplyHigh(n, modulus[3]) << shift1 | (n3 >>> shift2);
n3 &= LIMB_MASK;
n4 = n * modulus[4];
nn4 = Math.unsignedMultiplyHigh(n, modulus[4]) << shift1 | (n4 >>> shift2);
n4 &= LIMB_MASK;
dd0 += nn0;
d0 += n0;
dd1 += nn1;
d1 += n1;
dd2 += nn2;
d2 += n2;
dd3 += nn3;
d3 += n3;
dd4 += nn4;
d4 += n4;
c1 = d1 + dd0 + (d0 >>> BITS_PER_LIMB);
c2 = d2 + dd1;
c3 = d3 + dd2;
c4 = d4 + dd3;
c5 = dd4;
// Row 1 - multiply by aa1 and reduce out c1
d0 = aa1 * bb0;
dd0 = Math.unsignedMultiplyHigh(aa1, bb0) << shift1 | (d0 >>> shift2);
d0 &= LIMB_MASK;
d0 += c1;
n = d0 & LIMB_MASK;
d1 = aa1 * bb1;
dd1 = Math.unsignedMultiplyHigh(aa1, bb1) << shift1 | (d1 >>> shift2);
d1 &= LIMB_MASK;
d2 = aa1 * bb2;
dd2 = Math.unsignedMultiplyHigh(aa1, bb2) << shift1 | (d2 >>> shift2);
d2 &= LIMB_MASK;
d3 = aa1 * bb3;
dd3 = Math.unsignedMultiplyHigh(aa1, bb3) << shift1 | (d3 >>> shift2);
d3 &= LIMB_MASK;
d4 = aa1 * bb4;
dd4 = Math.unsignedMultiplyHigh(aa1, bb4) << shift1 | (d4 >>> shift2);
d4 &= LIMB_MASK;
n0 = n * modulus[0];
dd0 += Math.unsignedMultiplyHigh(n, modulus[0]) << shift1 | (n0 >>> shift2);
d0 += n0 & LIMB_MASK;
n1 = n * modulus[1];
dd1 += Math.unsignedMultiplyHigh(n, modulus[1]) << shift1 | (n1 >>> shift2);
d1 += n1 & LIMB_MASK;
n2 = n * modulus[2];
dd2 += Math.unsignedMultiplyHigh(n, modulus[2]) << shift1 | (n2 >>> shift2);
d2 += n2 & LIMB_MASK;
n3 = n * modulus[3];
dd3 += Math.unsignedMultiplyHigh(n, modulus[3]) << shift1 | (n3 >>> shift2);
d3 += n3 & LIMB_MASK;
n4 = n * modulus[4];
dd4 += Math.unsignedMultiplyHigh(n, modulus[4]) << shift1 | (n4 >>> shift2);
d4 += n4 & LIMB_MASK;
c2 += d1 + dd0 + (d0 >>> BITS_PER_LIMB);
c3 += d2 + dd1;
c4 += d3 + dd2;
c5 += d4 + dd3;
c6 = dd4;
// Row 2 - multiply by aa2 and reduce out c2
d0 = aa2 * bb0;
dd0 = Math.unsignedMultiplyHigh(aa2, bb0) << shift1 | (d0 >>> shift2);
d0 &= LIMB_MASK;
d0 += c2;
n = d0 & LIMB_MASK;
d1 = aa2 * bb1;
dd1 = Math.unsignedMultiplyHigh(aa2, bb1) << shift1 | (d1 >>> shift2);
d1 &= LIMB_MASK;
d2 = aa2 * bb2;
dd2 = Math.unsignedMultiplyHigh(aa2, bb2) << shift1 | (d2 >>> shift2);
d2 &= LIMB_MASK;
d3 = aa2 * bb3;
dd3 = Math.unsignedMultiplyHigh(aa2, bb3) << shift1 | (d3 >>> shift2);
d3 &= LIMB_MASK;
d4 = aa2 * bb4;
dd4 = Math.unsignedMultiplyHigh(aa2, bb4) << shift1 | (d4 >>> shift2);
d4 &= LIMB_MASK;
n0 = n * modulus[0];
dd0 += Math.unsignedMultiplyHigh(n, modulus[0]) << shift1 | (n0 >>> shift2);
d0 += n0 & LIMB_MASK;
n1 = n * modulus[1];
dd1 += Math.unsignedMultiplyHigh(n, modulus[1]) << shift1 | (n1 >>> shift2);
d1 += n1 & LIMB_MASK;
n2 = n * modulus[2];
dd2 += Math.unsignedMultiplyHigh(n, modulus[2]) << shift1 | (n2 >>> shift2);
d2 += n2 & LIMB_MASK;
n3 = n * modulus[3];
dd3 += Math.unsignedMultiplyHigh(n, modulus[3]) << shift1 | (n3 >>> shift2);
d3 += n3 & LIMB_MASK;
n4 = n * modulus[4];
dd4 += Math.unsignedMultiplyHigh(n, modulus[4]) << shift1 | (n4 >>> shift2);
d4 += n4 & LIMB_MASK;
c3 += d1 + dd0 + (d0 >>> BITS_PER_LIMB);
c4 += d2 + dd1;
c5 += d3 + dd2;
c6 += d4 + dd3;
c7 = dd4;
// Row 3 - multiply by aa3 and reduce out c3
d0 = aa3 * bb0;
dd0 = Math.unsignedMultiplyHigh(aa3, bb0) << shift1 | (d0 >>> shift2);
d0 &= LIMB_MASK;
d0 += c3;
n = d0 & LIMB_MASK;
d1 = aa3 * bb1;
dd1 = Math.unsignedMultiplyHigh(aa3, bb1) << shift1 | (d1 >>> shift2);
d1 &= LIMB_MASK;
d2 = aa3 * bb2;
dd2 = Math.unsignedMultiplyHigh(aa3, bb2) << shift1 | (d2 >>> shift2);
d2 &= LIMB_MASK;
d3 = aa3 * bb3;
dd3 = Math.unsignedMultiplyHigh(aa3, bb3) << shift1 | (d3 >>> shift2);
d3 &= LIMB_MASK;
d4 = aa3 * bb4;
dd4 = Math.unsignedMultiplyHigh(aa3, bb4) << shift1 | (d4 >>> shift2);
d4 &= LIMB_MASK;
n0 = n * modulus[0];
dd0 += Math.unsignedMultiplyHigh(n, modulus[0]) << shift1 | (n0 >>> shift2);
d0 += n0 & LIMB_MASK;
n1 = n * modulus[1];
dd1 += Math.unsignedMultiplyHigh(n, modulus[1]) << shift1 | (n1 >>> shift2);
d1 += n1 & LIMB_MASK;
n2 = n * modulus[2];
dd2 += Math.unsignedMultiplyHigh(n, modulus[2]) << shift1 | (n2 >>> shift2);
d2 += n2 & LIMB_MASK;
n3 = n * modulus[3];
dd3 += Math.unsignedMultiplyHigh(n, modulus[3]) << shift1 | (n3 >>> shift2);
d3 += n3 & LIMB_MASK;
n4 = n * modulus[4];
dd4 += Math.unsignedMultiplyHigh(n, modulus[4]) << shift1 | (n4 >>> shift2);
d4 += n4 & LIMB_MASK;
c4 += d1 + dd0 + (d0 >>> BITS_PER_LIMB);
c5 += d2 + dd1;
c6 += d3 + dd2;
c7 += d4 + dd3;
c8 = dd4;
// Row 4 - multiply by aa3 and reduce out c4
d0 = aa4 * bb0;
dd0 = Math.unsignedMultiplyHigh(aa4, bb0) << shift1 | (d0 >>> shift2);
d0 &= LIMB_MASK;
d0 += c4;
n = d0 & LIMB_MASK;
d1 = aa4 * bb1;
dd1 = Math.unsignedMultiplyHigh(aa4, bb1) << shift1 | (d1 >>> shift2);
d1 &= LIMB_MASK;
d2 = aa4 * bb2;
dd2 = Math.unsignedMultiplyHigh(aa4, bb2) << shift1 | (d2 >>> shift2);
d2 &= LIMB_MASK;
d3 = aa4 * bb3;
dd3 = Math.unsignedMultiplyHigh(aa4, bb3) << shift1 | (d3 >>> shift2);
d3 &= LIMB_MASK;
d4 = aa4 * bb4;
dd4 = Math.unsignedMultiplyHigh(aa4, bb4) << shift1 | (d4 >>> shift2);
d4 &= LIMB_MASK;
n0 = n * modulus[0];
dd0 += Math.unsignedMultiplyHigh(n, modulus[0]) << shift1 | (n0 >>> shift2);
d0 += n0 & LIMB_MASK;
n1 = n * modulus[1];
dd1 += Math.unsignedMultiplyHigh(n, modulus[1]) << shift1 | (n1 >>> shift2);
d1 += n1 & LIMB_MASK;
n2 = n * modulus[2];
dd2 += Math.unsignedMultiplyHigh(n, modulus[2]) << shift1 | (n2 >>> shift2);
d2 += n2 & LIMB_MASK;
n3 = n * modulus[3];
dd3 += Math.unsignedMultiplyHigh(n, modulus[3]) << shift1 | (n3 >>> shift2);
d3 += n3 & LIMB_MASK;
n4 = n * modulus[4];
dd4 += Math.unsignedMultiplyHigh(n, modulus[4]) << shift1 | (n4 >>> shift2);
d4 += n4 & LIMB_MASK;
c5 += d1 + dd0 + (d0 >>> BITS_PER_LIMB);
c6 += d2 + dd1 + (c5 >>> BITS_PER_LIMB);
c7 += d3 + dd2 + (c6 >>> BITS_PER_LIMB);
c8 += d4 + dd3 + (c7 >>> BITS_PER_LIMB);
c9 = dd4 + (c8 >>> BITS_PER_LIMB);
c5 &= LIMB_MASK;
c6 &= LIMB_MASK;
c7 &= LIMB_MASK;
c8 &= LIMB_MASK;
// At this point, the result could overflow by one modulus.
c0 = c5 - modulus[0];
c1 = c6 - modulus[1] + (c0 >> BITS_PER_LIMB);
c0 &= LIMB_MASK;
c2 = c7 - modulus[2] + (c1 >> BITS_PER_LIMB);
c1 &= LIMB_MASK;
c3 = c8 - modulus[3] + (c2 >> BITS_PER_LIMB);
c2 &= LIMB_MASK;
c4 = c9 - modulus[4] + (c3 >> BITS_PER_LIMB);
c3 &= LIMB_MASK;
long mask = c4 >> BITS_PER_LIMB; // Signed shift!
r[0] = ((c5 & mask) | (c0 & ~mask));
r[1] = ((c6 & mask) | (c1 & ~mask));
r[2] = ((c7 & mask) | (c2 & ~mask));
r[3] = ((c8 & mask) | (c3 & ~mask));
r[4] = ((c9 & mask) | (c4 & ~mask));
return 0;
}
@Override
protected void finalCarryReduceLast(long[] limbs) {
reduce(limbs);
}
@Override
protected long carryValue(long x) {
return x >> BITS_PER_LIMB;
}
@Override
protected void postEncodeCarry(long[] v) {
// not needed because carry is unsigned
}
// Proof:
// carry * 2^256 (mod p) == carry * [2^256 - p] (mod p)
// == carry * [2^256 - (2^256 -2^224 +2^192 +2^96 -1)] (mod p)
// == carry * [2^224 -2^192 -2^96 +1] (mod p)
@Override
protected void reduce(long[] limbs) {
long b0 = limbs[0];
long b1 = limbs[1];
long b2 = limbs[2];
long b3 = limbs[3];
long b4 = limbs[4];
long carry = b4 >> 48; // max 16-bits
b4 -= carry << 48;
// 2^0 position
b0 += carry;
// -2^96
b1 -= carry << 44;
// -2^192
b3 -= carry << 36;
// 2^224
b4 += carry << 16;
b1 += b0 >> BITS_PER_LIMB;
b2 += b1 >> BITS_PER_LIMB;
b3 += b2 >> BITS_PER_LIMB;
b4 += b3 >> BITS_PER_LIMB;
b0 &= LIMB_MASK;
b1 &= LIMB_MASK;
b2 &= LIMB_MASK;
b3 &= LIMB_MASK;
long c0, c1, c2, c3, c4;
c0 = modulus[0] + b0;
c1 = modulus[1] + b1 + (c0 >> BITS_PER_LIMB);
c0 &= LIMB_MASK;
c2 = modulus[2] + b2 + (c1 >> BITS_PER_LIMB);
c1 &= LIMB_MASK;
c3 = modulus[3] + b3 + (c2 >> BITS_PER_LIMB);
c2 &= LIMB_MASK;
c4 = modulus[4] + b4 + (c3 >> BITS_PER_LIMB);
c3 &= LIMB_MASK;
long mask = b4 >> BITS_PER_LIMB; // Signed shift!
limbs[0] = (b0 & ~mask) | (c0 & mask);
limbs[1] = (b1 & ~mask) | (c1 & mask);
limbs[2] = (b2 & ~mask) | (c2 & mask);
limbs[3] = (b3 & ~mask) | (c3 & mask);
limbs[4] = (b4 & ~mask) | (c4 & mask);
}
public ImmutableElement getElement(byte[] v, int offset, int length,
byte highByte) {
long[] vLimbs = new long[NUM_LIMBS];
long[] montLimbs = new long[NUM_LIMBS];
super.encode(v, offset, length, highByte, vLimbs);
// Convert to Montgomery domain
int numAdds = mult(vLimbs, h, montLimbs);
return new ImmutableElement(montLimbs, numAdds);
}
/*
* This function 'moves/reduces' digit 'v' to the 'lower' limbs
*
* The result is not reduced further. Carry propagation is not performed
* (see IntegerPolynomial.reduceHigh() for how this method is used)
*
* Proof:
* v * 2^(i*52) (mod p) == v * 2^(52i) - v * 2^(52i-256) * p (mod p)
* == v * 2^(52i) - v * 2^(52i-256) * (2^256 -2^224 +2^192 +2^96 -1) (mod p)
* == v * 2^(52i) - v * [2^(52i-256+256) -2^(52i-256+224) +2^(52i-256+192) +2^(52i-256+96) -2^(52i-256)] (mod p)
* == v * 2^(52i) - v * [2^(52i) -2^(52i-32) +2^(52i-64) +2^(52i-160) -2^(52i-256)] (mod p)
*
* == v * [2^(52i-32) +2^(52i-52-12) +2^(52i-3*52-4) -2^(52i-4*52-48)] (mod p)
*/
@Override
protected void reduceIn(long[] limbs, long v, int i) {
// Since top term (2^(52i-32)) will leave top 20 bits back in the same
// position i,
// "repeat same reduction on top 20 bits"
v += v >> 32;
// 2^(52i-32)
limbs[i - 1] += (v << 20) & LIMB_MASK;
// 2^(52i-52-12)
limbs[i - 2] -= (v << 40) & LIMB_MASK;
limbs[i - 1] -= v >> 12;
// 2^(52i-3*52-4)
limbs[i - 4] -= (v << 48) & LIMB_MASK;
limbs[i - 3] -= v >> 4;
// 2^(52i-4*52-48)
limbs[i - 5] += (v << 4) & LIMB_MASK;
limbs[i - 4] += v >> 48;
}
}

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/*
* Copyright (c) 2024, Intel Corporation. All rights reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.util.Random;
import java.math.BigInteger;
import java.lang.reflect.Field;
import java.security.spec.ECParameterSpec;
import sun.security.ec.ECOperations;
import sun.security.util.ECUtil;
import sun.security.util.NamedCurve;
import sun.security.util.CurveDB;
import sun.security.ec.point.*;
import java.security.spec.ECPoint;
import sun.security.util.KnownOIDs;
import sun.security.util.math.IntegerMontgomeryFieldModuloP;
import sun.security.util.math.intpoly.*;
/*
* @test
* @key randomness
* @modules java.base/sun.security.ec java.base/sun.security.ec.point
* java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm/timeout=1200 --add-opens
* java.base/sun.security.ec=ALL-UNNAMED -XX:+UnlockDiagnosticVMOptions
* -XX:-UseIntPolyIntrinsics ECOperationsFuzzTest
* @summary Unit test ECOperationsFuzzTest.
*/
/*
* @test
* @key randomness
* @modules java.base/sun.security.ec java.base/sun.security.ec.point
* java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm/timeout=1200 --add-opens
* java.base/sun.security.ec=ALL-UNNAMED -XX:+UnlockDiagnosticVMOptions
* -XX:+UseIntPolyIntrinsics ECOperationsFuzzTest
* @summary Unit test ECOperationsFuzzTest.
*/
// This test case is NOT entirely deterministic, it uses a random seed for
// pseudo-random number generator. If a failure occurs, hardcode the seed to
// make the test case deterministic
public class ECOperationsFuzzTest {
public static void main(String[] args) throws Exception {
// Note: it might be useful to increase this number during development
final int repeat = 10000;
test(repeat);
System.out.println("Fuzz Success");
}
private static void check(MutablePoint reference, MutablePoint testValue,
long seed, int iter) {
AffinePoint affineRef = reference.asAffine();
AffinePoint affine = testValue.asAffine();
if (!affineRef.equals(affine)) {
throw new RuntimeException(
"Found error with seed " + seed + "at iteration " + iter);
}
}
public static void test(int repeat) throws Exception {
Random rnd = new Random();
long seed = rnd.nextLong();
rnd.setSeed(seed);
int keySize = 256;
ECParameterSpec params = ECUtil.getECParameterSpec(keySize);
NamedCurve curve = CurveDB.lookup(KnownOIDs.secp256r1.value());
ECPoint generator = curve.getGenerator();
BigInteger b = curve.getCurve().getB();
if (params == null || generator == null) {
throw new RuntimeException(
"No EC parameters available for key size " + keySize + " bits");
}
ECOperations ops = ECOperations.forParameters(params).get();
ECOperations opsReference = new ECOperations(
IntegerPolynomialP256.ONE.getElement(b), P256OrderField.ONE);
boolean instanceTest1 = ops
.getField() instanceof IntegerMontgomeryFieldModuloP;
boolean instanceTest2 = opsReference
.getField() instanceof IntegerMontgomeryFieldModuloP;
if (instanceTest1 == false || instanceTest2 == true) {
throw new RuntimeException("Bad Initialization: ["
+ instanceTest1 + "," + instanceTest2 + "]");
}
byte[] multiple = new byte[keySize / 8];
rnd.nextBytes(multiple);
multiple[keySize/8 - 1] &= 0x7f; // from opsReference.seedToScalar(multiple);
MutablePoint referencePoint = opsReference.multiply(generator, multiple);
MutablePoint point = ops.multiply(generator, multiple);
check(referencePoint, point, seed, -1);
AffinePoint refAffineGenerator = AffinePoint.fromECPoint(generator,
referencePoint.getField());
AffinePoint montAffineGenerator = AffinePoint.fromECPoint(generator,
point.getField());
MutablePoint refProjGenerator = new ProjectivePoint.Mutable(
refAffineGenerator.getX(false).mutable(),
refAffineGenerator.getY(false).mutable(),
referencePoint.getField().get1().mutable());
MutablePoint projGenerator = new ProjectivePoint.Mutable(
montAffineGenerator.getX(false).mutable(),
montAffineGenerator.getY(false).mutable(),
point.getField().get1().mutable());
for (int i = 0; i < repeat; i++) {
rnd.nextBytes(multiple);
multiple[keySize/8 - 1] &= 0x7f; // opsReference.seedToScalar(multiple);
MutablePoint nextReferencePoint = opsReference
.multiply(referencePoint.asAffine(), multiple);
MutablePoint nextPoint = ops.multiply(point.asAffine().toECPoint(),
multiple);
check(nextReferencePoint, nextPoint, seed, i);
if (rnd.nextBoolean()) {
opsReference.setSum(nextReferencePoint, referencePoint);
ops.setSum(nextPoint, point);
check(nextReferencePoint, nextPoint, seed, i);
}
if (rnd.nextBoolean()) {
opsReference.setSum(nextReferencePoint, refProjGenerator);
ops.setSum(nextPoint, projGenerator);
check(nextReferencePoint, nextPoint, seed, i);
}
if (rnd.nextInt(100) < 10) { // 10% Reset point to generator, test
// generator multiplier
referencePoint = opsReference.multiply(generator, multiple);
point = ops.multiply(generator, multiple);
check(referencePoint, point, seed, i);
} else {
referencePoint = nextReferencePoint;
point = nextPoint;
}
}
}
}
// make test TEST="test/jdk/com/sun/security/ec/ECOperationsFuzzTest.java"

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/*
* Copyright (c) 2024, Intel Corporation. All rights reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.util.Random;
import java.util.List;
import java.util.LinkedList;
import java.math.BigInteger;
import java.lang.reflect.Field;
import java.security.spec.ECParameterSpec;
import sun.security.ec.ECOperations;
import sun.security.util.ECUtil;
import sun.security.util.NamedCurve;
import sun.security.util.CurveDB;
import sun.security.ec.point.*;
import java.security.spec.ECPoint;
import sun.security.util.KnownOIDs;
import sun.security.util.math.IntegerMontgomeryFieldModuloP;
import sun.security.util.math.intpoly.*;
/*
* @test
* @modules java.base/sun.security.ec java.base/sun.security.ec.point
* java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm --add-opens java.base/sun.security.ec=ALL-UNNAMED
* ECOperationsKATTest
* @summary Unit test ECOperationsKATTest.
*/
/*
* @test
* @modules java.base/sun.security.ec java.base/sun.security.ec.point
* java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xcomp
* -XX:-TieredCompilation --add-opens java.base/sun.security.ec=ALL-UNNAMED
* -XX:+UnlockDiagnosticVMOptions ECOperationsKATTest
* @summary Unit test ECOperationsKATTest.
*/
public class ECOperationsKATTest {
final private static java.util.HexFormat hex = java.util.HexFormat.of();
public static void main(String args[]) throws Exception {
int testsPassed = 0;
int testNumber = 0;
for (TestData test : testList) {
System.out.println("*** Test " + ++testNumber + ": " + test.testName);
if (runSingleTest(test)) {
testsPassed++;
}
}
System.out.println();
if (testsPassed != testNumber) {
throw new RuntimeException(
"One or more tests failed. Check output for details");
}
}
private static boolean check(MutablePoint testValue, ECPoint reference) {
AffinePoint affine = testValue.asAffine();
BigInteger x = affine.getX().asBigInteger();
BigInteger y = affine.getY().asBigInteger();
BigInteger refX = reference.getAffineX();
BigInteger refY = reference.getAffineY();
if (!refX.equals(x) || !refY.equals(y)) {
System.out.println("ERROR - Output Mismatch!");
System.out.println("Expected: X: " + refX.toString(16) + " Y: "
+ refY.toString(16));
System.out.println(
"Result: X: " + x.toString(16) + " Y: " + y.toString(16));
return false;
}
return true;
}
private static class TestData {
public TestData(String name, String keyStr, String xStr1, String yStr1,
String xStr2, String yStr2) {
testName = name;
// multiplier = (new BigInteger(keyStr, 16)).toByteArray();
multiplier = hex.parseHex(keyStr);
sun.security.util.ArrayUtil.reverse(multiplier);
reference1 = new ECPoint(new BigInteger(xStr1, 16),
new BigInteger(yStr1, 16));
reference2 = new ECPoint(new BigInteger(xStr2, 16),
new BigInteger(yStr2, 16));
}
String testName;
byte[] multiplier;
ECPoint reference1; // For generator multiplier test
ECPoint reference2; // For non-generator multiplier test
}
public static final List<TestData> testList = new LinkedList<TestData>() {{
// (x1,y1) = mult*generator
// (x2,y2) = mult*mult*generator
add(new TestData("Test Vector #1",
"0000000000000000000000000000000000000000000000000000000000000012", // mult
"1057E0AB5780F470DEFC9378D1C7C87437BB4C6F9EA55C63D936266DBD781FDA", // x1
"F6F1645A15CBE5DC9FA9B7DFD96EE5A7DCC11B5C5EF4F1F78D83B3393C6A45A2", // y1
"4954047A366A91E3FD94E574DB6F2B04F3A8465883DBC55A816EA563BF54A324", // x2
"B5A54786FD9EA48C9FC38A0557B0C4D54F285908A7291B630D06BEE970F530D3") // y2
);
add(new TestData("Test Vector #2",
"1200000000000000000000000000000000000000000000000000000000000000", // mult
"DF684E6D0D57AF8B89DA11E8F7436C3D360F531D62BDCE42C5A8B72D73D5C717", // x
"9D3576BD03C09B8F416EE9C27D70AD4A425119271ACF549312CA48758F4E1FEC", // y
"57C8257EEAABF5446DCFACB99DEE104367B6C9950C76797C372EB177D5FA23B3", // x
"1CD3E8A34521C1C8E574EB4B99343CAA57E00725D8618F0231C7C79AA6837725") // y
);
add(new TestData("Test Vector #3",
"0000000000000000000000000000000120000000000000000000000000000012", // mult
"A69DFD47B24485E5F523BDA5FBACF03F5A7C3D22E0C2BC6705594B7B051A06D0", // x
"ECF19629416BE5C9AF1E30988F3AA8B803809CF4D12944EB49C5E9892723798A", // y
"1E28559F5B681C308632EE11A007B9891B3FD592C982C4926153795794295E58", // x
"3C373046C27BB34609A43C91DF6D4B9AB9EB08F3B69A8F8FAE944211D8297F30") // y
);
add(new TestData("Test Vector #4",
"0000000000000000000000000000000000000000000000000000000000000001", // mult
"6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296", // x
"4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5", // y
"6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296", // x
"4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5") // y
);
add(new TestData("Test Vector #5",
"EFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", // mult
"66B71D0BD47344197CCFB0C9578EAF0ADB609E05BB4E8F87D56BD34F24EE7C47", // x
"14A0ECB7F708C02B2BAE238D2C4607BB9D04FCE64E10A428C911D6FA25B2F0FD", // y
"D25AAFD0FCC5B5E95C84C0702C138BC4D7FEB4E5F9C2DFB4301E313507EFDF44", // x
"F3F04EBC7D308511B0392BB7171CF92688D6484A95A8100EDFC933613A359133") // y
);
add(new TestData("Test Vector #6",
"1111111111111111111111111111111111111111111111111111111111111111", // mult
"0217E617F0B6443928278F96999E69A23A4F2C152BDF6D6CDF66E5B80282D4ED", // x
"194A7DEBCB97712D2DDA3CA85AA8765A56F45FC758599652F2897C65306E5794", // y
"A83A07D6AE918359DEBCC385DA1E416EB83417435079CA8DB06005E107C309A0", // x
"5AACDF816850C33EB3E54F3D0DD759B97B5E7065B2060016F73735E4A6AADE23") // y
);
}};
private static boolean runSingleTest(TestData testData) {
int keySize = 256;
ECParameterSpec params = ECUtil.getECParameterSpec(keySize);
NamedCurve curve = CurveDB.lookup(KnownOIDs.secp256r1.value());
ECPoint generator = curve.getGenerator();
BigInteger b = curve.getCurve().getB();
if (params == null || generator == null) {
throw new RuntimeException(
"No EC parameters available for key size " + keySize + " bits");
}
ECOperations ops = ECOperations.forParameters(params).get();
ECOperations opsReference = new ECOperations(
IntegerPolynomialP256.ONE.getElement(b), P256OrderField.ONE);
boolean instanceTest1 = ops
.getField() instanceof IntegerMontgomeryFieldModuloP;
boolean instanceTest2 = opsReference
.getField() instanceof IntegerMontgomeryFieldModuloP;
if (instanceTest1 == false || instanceTest2 == true) {
throw new RuntimeException("Bad Initialization: [" + instanceTest1 + ","
+ instanceTest2 + "]");
}
MutablePoint nextPoint = ops.multiply(generator, testData.multiplier);
MutablePoint nextReferencePoint = opsReference.multiply(generator,
testData.multiplier);
if (!check(nextReferencePoint, testData.reference1)
|| !check(nextPoint, testData.reference1)) {
return false;
}
nextPoint = ops.multiply(nextPoint.asAffine(), testData.multiplier);
nextReferencePoint = opsReference.multiply(nextReferencePoint.asAffine(),
testData.multiplier);
if (!check(nextReferencePoint, testData.reference2)
|| !check(nextPoint, testData.reference2)) {
return false;
}
return true;
}
}
//make test TEST="test/jdk/com/sun/security/ec/ECOperationsKATTest.java"
/*
* KAT generator using OpenSSL for reference vectors
* g++ ecpoint.cpp -g -lcrypto -Wno-deprecated-declarations && ./a.out
* (Some OpenSSL EC operations are marked internal i.e. deprecated)
*
#include <openssl/obj_mac.h>
#include <openssl/ec.h>
void check(int rc, const char* locator) {
if (rc != 1) {
printf("Failed at %s\n", locator);
exit(55);
}
}
int main(){
BN_CTX* ctx = BN_CTX_new();
BIGNUM* k = BN_CTX_get(ctx);
BIGNUM* x1 = BN_CTX_get(ctx);
BIGNUM* y1 = BN_CTX_get(ctx);
BIGNUM* x2 = BN_CTX_get(ctx);
BIGNUM* y2 = BN_CTX_get(ctx);
EC_GROUP *ec_group = EC_GROUP_new_by_curve_name(NID_X9_62_prime256v1);
EC_POINT* pubkey = EC_POINT_new(ec_group);
EC_POINT* pubkey2 = EC_POINT_new(ec_group);
int rc;
rc = BN_hex2bn(&k, "1111111111111111111111111111111111111111111111111111111111111111"); //check(rc, "set raw key");
rc = EC_POINT_mul(ec_group, pubkey, k, NULL, NULL, ctx); check(rc, "mult public key");
rc = EC_POINT_get_affine_coordinates(ec_group, pubkey, x1, y1, ctx); check(rc, "get affine coordinates");
rc = EC_POINT_mul(ec_group, pubkey2, NULL, pubkey, k, ctx); check(rc, "mult public key");
rc = EC_POINT_get_affine_coordinates(ec_group, pubkey2, x2, y2, ctx); check(rc, "get affine coordinates");
printf("k: %s\n", BN_bn2hex(k));
printf("x: %s\ny: %s\n", BN_bn2hex(x1), BN_bn2hex(y1));
printf("x: %s\ny: %s\n", BN_bn2hex(x2), BN_bn2hex(y2));
BN_CTX_free(ctx);
return 0;
}
*/

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test/jdk/com/sun/security/util/math/intpoly/IntegerPolynomialTest.java Normal file
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/*
* Copyright (c) 2024, Intel Corporation. All rights reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.util.Random;
import java.math.BigInteger;
import java.util.Arrays;
import sun.security.util.math.*;
import sun.security.util.math.intpoly.*;
/*
* @test
* @key randomness
* @modules java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-UseIntPolyIntrinsics
* IntegerPolynomialTest
* @summary Unit test
* IntegerPolynomial.MutableIntegerModuloP.conditionalAssign().
*/
/*
* @test
* @key randomness
* @modules java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -Xcomp
* -XX:-TieredCompilation -XX:+UseIntPolyIntrinsics IntegerPolynomialTest
* @summary Unit test
* IntegerPolynomial.MutableIntegerModuloP.conditionalAssign().
*/
// This test case is NOT entirely deterministic, it uses a random seed for
// pseudo-random number generator. If a failure occurs, hardcode the seed to
// make the test case deterministic
public class IntegerPolynomialTest {
public static void main(String[] args) throws Exception {
Random rnd = new Random();
long seed = rnd.nextLong();
rnd.setSeed(seed);
IntegerPolynomial testFields[] = new IntegerPolynomial[] {
IntegerPolynomial1305.ONE, IntegerPolynomial25519.ONE,
IntegerPolynomial448.ONE, IntegerPolynomialP256.ONE,
MontgomeryIntegerPolynomialP256.ONE, IntegerPolynomialP384.ONE,
IntegerPolynomialP521.ONE,
new IntegerPolynomialModBinP.Curve25519OrderField(),
new IntegerPolynomialModBinP.Curve448OrderField(),
P256OrderField.ONE, P384OrderField.ONE, P521OrderField.ONE,
Curve25519OrderField.ONE, Curve448OrderField.ONE };
for (IntegerPolynomial field : testFields) {
ImmutableIntegerModuloP aRef = field
.getElement(new BigInteger(32 * 64, rnd));
MutableIntegerModuloP a = aRef.mutable();
ImmutableIntegerModuloP bRef = field
.getElement(new BigInteger(32 * 64, rnd));
MutableIntegerModuloP b = bRef.mutable();
a.conditionalSet(b, 0); // Don't assign
if (Arrays.equals(a.getLimbs(), b.getLimbs())) {
throw new RuntimeException(
"[SEED " + seed + "]: Incorrect assign for " + field);
}
a.conditionalSet(b, 1); // Assign
if (!Arrays.equals(a.getLimbs(), b.getLimbs())) {
throw new RuntimeException(
"[SEED " + seed + "]: Incorrect assign for " + field);
}
}
System.out.println("Test Success");
}
}
//make test TEST="test/jdk/com/sun/security/util/math/intpoly/IntegerPolynomialTest.java"

100
test/jdk/com/sun/security/util/math/intpoly/MontgomeryPolynomialFuzzTest.java Normal file
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/*
* Copyright (c) 2024, Intel Corporation. All rights reserved.
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.util.Random;
import sun.security.util.math.IntegerMontgomeryFieldModuloP;
import sun.security.util.math.ImmutableIntegerModuloP;
import java.math.BigInteger;
import sun.security.util.math.intpoly.*;
/*
* @test
* @key randomness
* @modules java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:-UseIntPolyIntrinsics
* MontgomeryPolynomialFuzzTest
* @summary Unit test MontgomeryPolynomialFuzzTest.
*/
/*
* @test
* @key randomness
* @modules java.base/sun.security.util java.base/sun.security.util.math
* java.base/sun.security.util.math.intpoly
* @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+UseIntPolyIntrinsics
* MontgomeryPolynomialFuzzTest
* @summary Unit test MontgomeryPolynomialFuzzTest.
*/
// This test case is NOT entirely deterministic, it uses a random seed for pseudo-random number generator
// If a failure occurs, hardcode the seed to make the test case deterministic
public class MontgomeryPolynomialFuzzTest {
public static void main(String[] args) throws Exception {
// Note: it might be useful to increase this number during development
final int repeat = 1000000;
for (int i = 0; i < repeat; i++) {
run();
}
System.out.println("Fuzz Success");
}
private static void check(BigInteger reference,
ImmutableIntegerModuloP testValue, long seed) {
if (!reference.equals(testValue.asBigInteger())) {
throw new RuntimeException("SEED: " + seed);
}
}
public static void run() throws Exception {
Random rnd = new Random();
long seed = rnd.nextLong();
rnd.setSeed(seed);
IntegerMontgomeryFieldModuloP montField = MontgomeryIntegerPolynomialP256.ONE;
BigInteger P = MontgomeryIntegerPolynomialP256.ONE.MODULUS;
BigInteger r = BigInteger.ONE.shiftLeft(260).mod(P);
BigInteger rInv = r.modInverse(P);
BigInteger aRef = (new BigInteger(P.bitLength(), rnd)).mod(P);
// Test conversion to montgomery domain
ImmutableIntegerModuloP a = montField.getElement(aRef);
aRef = aRef.multiply(r).mod(P);
check(aRef, a, seed);
if (rnd.nextBoolean()) {
aRef = aRef.multiply(aRef).multiply(rInv).mod(P);
a = a.multiply(a);
check(aRef, a, seed);
}
if (rnd.nextBoolean()) {
aRef = aRef.add(aRef).mod(P);
a = a.add(a);
check(aRef, a, seed);
}
}
}
//make test TEST="test/jdk/com/sun/security/util/math/intpoly/MontgomeryPolynomialFuzzTest.java"

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/*
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.openjdk.bench.javax.crypto.full;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.annotations.Benchmark;
import java.math.BigInteger;
import java.util.concurrent.TimeUnit;
import sun.security.util.math.intpoly.MontgomeryIntegerPolynomialP256;
import sun.security.util.math.intpoly.IntegerPolynomialP256;
import sun.security.util.math.MutableIntegerModuloP;
import sun.security.util.math.ImmutableIntegerModuloP;
@Fork(jvmArgsAppend = {"-XX:+AlwaysPreTouch",
"--add-exports", "java.base/sun.security.util.math.intpoly=ALL-UNNAMED",
"--add-exports", "java.base/sun.security.util.math=ALL-UNNAMED"}, value = 1)
@Warmup(iterations = 3, time = 3)
@Measurement(iterations = 8, time = 2)
@OutputTimeUnit(TimeUnit.SECONDS)
@State(Scope.Thread)
@BenchmarkMode(Mode.Throughput)
public class PolynomialP256Bench {
final MontgomeryIntegerPolynomialP256 montField = MontgomeryIntegerPolynomialP256.ONE;
final IntegerPolynomialP256 residueField = IntegerPolynomialP256.ONE;
final BigInteger refx =
new BigInteger("6b17d1f2e12c4247f8bce6e563a440f277037d812deb33a0f4a13945d898c296", 16);
final ImmutableIntegerModuloP x = residueField.getElement(refx);
final ImmutableIntegerModuloP X = montField.getElement(refx);
final ImmutableIntegerModuloP one = montField.get1();
@Param({"true", "false"})
private boolean isMontBench;
@Benchmark
public MutableIntegerModuloP benchMultiply() {
MutableIntegerModuloP test;
if (isMontBench) {
test = X.mutable();
} else {
test = x.mutable();
}
for (int i = 0; i< 10000; i++) {
test = test.setProduct(test);
}
return test;
}
@Benchmark
public MutableIntegerModuloP benchSquare() {
MutableIntegerModuloP test;
if (isMontBench) {
test = X.mutable();
} else {
test = x.mutable();
}
for (int i = 0; i< 10000; i++) {
test = test.setSquare();
}
return test;
}
@Benchmark
public MutableIntegerModuloP benchAssign() {
MutableIntegerModuloP test1 = X.mutable();
MutableIntegerModuloP test2 = one.mutable();
for (int i = 0; i< 10000; i++) {
test1.conditionalSet(test2, 0);
test1.conditionalSet(test2, 1);
test2.conditionalSet(test1, 0);
test2.conditionalSet(test1, 1);
}
return test2;
}
}