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8187443: Forest Consolidation: Move files to unified layout

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Reviewed-by: darcy, ihse
This commit is contained in:
Erik Joelsson 2017-09-12 19:03:39 +02:00
parent 270fe13182
commit 3789983e89
56923 changed files with 3 additions and 15727 deletions
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src/java.base/share/classes/sun/security/util/ECUtil.java Normal file
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/*
* Copyright (c) 2006, 2013, 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;
import java.io.IOException;
import java.math.BigInteger;
import java.security.*;
import java.security.interfaces.*;
import java.security.spec.*;
import java.util.Arrays;
import sun.security.x509.X509Key;
public class ECUtil {
// Used by SunPKCS11 and SunJSSE.
public static ECPoint decodePoint(byte[] data, EllipticCurve curve)
throws IOException {
if ((data.length == 0) || (data[0] != 4)) {
throw new IOException("Only uncompressed point format supported");
}
// Per ANSI X9.62, an encoded point is a 1 byte type followed by
// ceiling(log base 2 field-size / 8) bytes of x and the same of y.
int n = (data.length - 1) / 2;
if (n != ((curve.getField().getFieldSize() + 7 ) >> 3)) {
throw new IOException("Point does not match field size");
}
byte[] xb = Arrays.copyOfRange(data, 1, 1 + n);
byte[] yb = Arrays.copyOfRange(data, n + 1, n + 1 + n);
return new ECPoint(new BigInteger(1, xb), new BigInteger(1, yb));
}
// Used by SunPKCS11 and SunJSSE.
public static byte[] encodePoint(ECPoint point, EllipticCurve curve) {
// get field size in bytes (rounding up)
int n = (curve.getField().getFieldSize() + 7) >> 3;
byte[] xb = trimZeroes(point.getAffineX().toByteArray());
byte[] yb = trimZeroes(point.getAffineY().toByteArray());
if ((xb.length > n) || (yb.length > n)) {
throw new RuntimeException
("Point coordinates do not match field size");
}
byte[] b = new byte[1 + (n << 1)];
b[0] = 4; // uncompressed
System.arraycopy(xb, 0, b, n - xb.length + 1, xb.length);
System.arraycopy(yb, 0, b, b.length - yb.length, yb.length);
return b;
}
public static byte[] trimZeroes(byte[] b) {
int i = 0;
while ((i < b.length - 1) && (b[i] == 0)) {
i++;
}
if (i == 0) {
return b;
}
return Arrays.copyOfRange(b, i, b.length);
}
private static KeyFactory getKeyFactory() {
try {
return KeyFactory.getInstance("EC", "SunEC");
} catch (NoSuchAlgorithmException | NoSuchProviderException e) {
throw new RuntimeException(e);
}
}
public static ECPublicKey decodeX509ECPublicKey(byte[] encoded)
throws InvalidKeySpecException {
KeyFactory keyFactory = getKeyFactory();
X509EncodedKeySpec keySpec = new X509EncodedKeySpec(encoded);
return (ECPublicKey)keyFactory.generatePublic(keySpec);
}
public static byte[] x509EncodeECPublicKey(ECPoint w,
ECParameterSpec params) throws InvalidKeySpecException {
KeyFactory keyFactory = getKeyFactory();
ECPublicKeySpec keySpec = new ECPublicKeySpec(w, params);
X509Key key = (X509Key)keyFactory.generatePublic(keySpec);
return key.getEncoded();
}
public static ECPrivateKey decodePKCS8ECPrivateKey(byte[] encoded)
throws InvalidKeySpecException {
KeyFactory keyFactory = getKeyFactory();
PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(encoded);
return (ECPrivateKey)keyFactory.generatePrivate(keySpec);
}
public static ECPrivateKey generateECPrivateKey(BigInteger s,
ECParameterSpec params) throws InvalidKeySpecException {
KeyFactory keyFactory = getKeyFactory();
ECPrivateKeySpec keySpec = new ECPrivateKeySpec(s, params);
return (ECPrivateKey)keyFactory.generatePrivate(keySpec);
}
public static AlgorithmParameters getECParameters(Provider p) {
try {
if (p != null) {
return AlgorithmParameters.getInstance("EC", p);
}
return AlgorithmParameters.getInstance("EC");
} catch (NoSuchAlgorithmException nsae) {
throw new RuntimeException(nsae);
}
}
public static byte[] encodeECParameterSpec(Provider p,
ECParameterSpec spec) {
AlgorithmParameters parameters = getECParameters(p);
try {
parameters.init(spec);
} catch (InvalidParameterSpecException ipse) {
throw new RuntimeException("Not a known named curve: " + spec);
}
try {
return parameters.getEncoded();
} catch (IOException ioe) {
// it is a bug if this should happen
throw new RuntimeException(ioe);
}
}
public static ECParameterSpec getECParameterSpec(Provider p,
ECParameterSpec spec) {
AlgorithmParameters parameters = getECParameters(p);
try {
parameters.init(spec);
return parameters.getParameterSpec(ECParameterSpec.class);
} catch (InvalidParameterSpecException ipse) {
return null;
}
}
public static ECParameterSpec getECParameterSpec(Provider p,
byte[] params)
throws IOException {
AlgorithmParameters parameters = getECParameters(p);
parameters.init(params);
try {
return parameters.getParameterSpec(ECParameterSpec.class);
} catch (InvalidParameterSpecException ipse) {
return null;
}
}
public static ECParameterSpec getECParameterSpec(Provider p, String name) {
AlgorithmParameters parameters = getECParameters(p);
try {
parameters.init(new ECGenParameterSpec(name));
return parameters.getParameterSpec(ECParameterSpec.class);
} catch (InvalidParameterSpecException ipse) {
return null;
}
}
public static ECParameterSpec getECParameterSpec(Provider p, int keySize) {
AlgorithmParameters parameters = getECParameters(p);
try {
parameters.init(new ECKeySizeParameterSpec(keySize));
return parameters.getParameterSpec(ECParameterSpec.class);
} catch (InvalidParameterSpecException ipse) {
return null;
}
}
public static String getCurveName(Provider p, ECParameterSpec spec) {
ECGenParameterSpec nameSpec;
AlgorithmParameters parameters = getECParameters(p);
try {
parameters.init(spec);
nameSpec = parameters.getParameterSpec(ECGenParameterSpec.class);
} catch (InvalidParameterSpecException ipse) {
return null;
}
if (nameSpec == null) {
return null;
}
return nameSpec.getName();
}
private ECUtil() {}
}