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8225625: AES Electronic Codebook (ECB) encryption and decryption optimization using AVX512 + VAES instructions

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AES-ECB encryption and decryption optimization for x86_64 architectures supporting AVX3+VAES

Co-authored-by: Smita Kamath <smita.kamath@intel.com>
Reviewed-by: kvn, valeriep
This commit is contained in:
Shravya Rukmannagari 2019-08-16 14:42:50 -07:00
parent 0b9a90e0d1
commit 793585b494
20 changed files with 756 additions and 10 deletions
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28
src/java.base/share/classes/com/sun/crypto/provider/ElectronicCodeBook.java
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@ -28,6 +28,8 @@ package com.sun.crypto.provider;
import java.security.InvalidKeyException;
import java.security.ProviderException;
import sun.security.util.ArrayUtil;
import java.util.Objects;
import jdk.internal.HotSpotIntrinsicCandidate;
/**
* This class represents ciphers in electronic codebook (ECB) mode.
@ -95,6 +97,16 @@ final class ElectronicCodeBook extends FeedbackCipher {
embeddedCipher.init(decrypting, algorithm, key);
}
@HotSpotIntrinsicCandidate
private int implECBEncrypt(byte [] in, int inOff, int len, byte[] out, int outOff) {
for (int i = len; i >= blockSize; i -= blockSize) {
embeddedCipher.encryptBlock(in, inOff, out, outOff);
inOff += blockSize;
outOff += blockSize;
}
return len;
}
/**
* Performs encryption operation.
*
@ -116,9 +128,13 @@ final class ElectronicCodeBook extends FeedbackCipher {
ArrayUtil.blockSizeCheck(len, blockSize);
ArrayUtil.nullAndBoundsCheck(in, inOff, len);
ArrayUtil.nullAndBoundsCheck(out, outOff, len);
return implECBEncrypt(in, inOff, len, out, outOff);
}
@HotSpotIntrinsicCandidate
private int implECBDecrypt(byte [] in, int inOff, int len, byte[] out, int outOff) {
for (int i = len; i >= blockSize; i -= blockSize) {
embeddedCipher.encryptBlock(in, inOff, out, outOff);
embeddedCipher.decryptBlock(in, inOff, out, outOff);
inOff += blockSize;
outOff += blockSize;
}
@ -146,12 +162,6 @@ final class ElectronicCodeBook extends FeedbackCipher {
ArrayUtil.blockSizeCheck(len, blockSize);
ArrayUtil.nullAndBoundsCheck(in, inOff, len);
ArrayUtil.nullAndBoundsCheck(out, outOff, len);
for (int i = len; i >= blockSize; i -= blockSize) {
embeddedCipher.decryptBlock(in, inOff, out, outOff);
inOff += blockSize;
outOff += blockSize;
}
return len;
}
return implECBDecrypt(in, inOff, len, out, outOff);
}
}