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authorJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
committerJing Yu <jingyu@google.com>2010-07-22 14:03:48 -0700
commitb094d6c4bf572654a031ecc4afe675154c886dc5 (patch)
tree89394c56b05e13a5413ee60237d65b0214fd98e2 /gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/sig/DHKeyFactory.java
parentdc34721ac3bf7e3c406fba8cfe9d139393345ec5 (diff)
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commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.
The source is based on fsf gcc-4.4.3 and contains local patches which are recorded in gcc-4.4.3/README.google. Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887
Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/sig/DHKeyFactory.java')
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diff --git a/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/sig/DHKeyFactory.java b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/sig/DHKeyFactory.java
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+++ b/gcc-4.4.3/libjava/classpath/gnu/javax/crypto/jce/sig/DHKeyFactory.java
@@ -0,0 +1,219 @@
+/* DHKeyFactory.java -- DH key-factory JCE Adapter
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.crypto.jce.sig;
+
+import gnu.java.security.Registry;
+import gnu.javax.crypto.key.dh.DHKeyPairPKCS8Codec;
+import gnu.javax.crypto.key.dh.DHKeyPairX509Codec;
+import gnu.javax.crypto.key.dh.GnuDHPrivateKey;
+import gnu.javax.crypto.key.dh.GnuDHPublicKey;
+
+import java.math.BigInteger;
+import java.security.InvalidKeyException;
+import java.security.Key;
+import java.security.KeyFactorySpi;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.KeySpec;
+import java.security.spec.PKCS8EncodedKeySpec;
+import java.security.spec.X509EncodedKeySpec;
+
+import javax.crypto.interfaces.DHPrivateKey;
+import javax.crypto.interfaces.DHPublicKey;
+import javax.crypto.spec.DHPrivateKeySpec;
+import javax.crypto.spec.DHPublicKeySpec;
+
+/**
+ * Implementation of a JCE Adapter for DH a key-factory.
+ */
+public class DHKeyFactory
+ extends KeyFactorySpi
+{
+ // implicit 0-arguments constructor
+
+ protected PublicKey engineGeneratePublic(KeySpec keySpec)
+ throws InvalidKeySpecException
+ {
+ if (keySpec instanceof DHPublicKeySpec)
+ {
+ DHPublicKeySpec spec = (DHPublicKeySpec) keySpec;
+ BigInteger p = spec.getP();
+ BigInteger g = spec.getG();
+ BigInteger y = spec.getY();
+ return new GnuDHPublicKey(Registry.X509_ENCODING_ID, null, p, g, y);
+ }
+ if (keySpec instanceof X509EncodedKeySpec)
+ {
+ X509EncodedKeySpec spec = (X509EncodedKeySpec) keySpec;
+ byte[] encoded = spec.getEncoded();
+ PublicKey result;
+ try
+ {
+ result = new DHKeyPairX509Codec().decodePublicKey(encoded);
+ return result;
+ }
+ catch (RuntimeException x)
+ {
+ InvalidKeySpecException y = new InvalidKeySpecException();
+ y.initCause(x);
+ throw y;
+ }
+ }
+ throw new InvalidKeySpecException("Unsupported (public) key specification");
+ }
+
+ protected PrivateKey engineGeneratePrivate(KeySpec keySpec)
+ throws InvalidKeySpecException
+ {
+ if (keySpec instanceof DHPrivateKeySpec)
+ {
+ DHPrivateKeySpec spec = (DHPrivateKeySpec) keySpec;
+ BigInteger p = spec.getP();
+ BigInteger g = spec.getG();
+ BigInteger x = spec.getX();
+ return new GnuDHPrivateKey(Registry.PKCS8_ENCODING_ID, null, p, g, x);
+ }
+ if (keySpec instanceof PKCS8EncodedKeySpec)
+ {
+ PKCS8EncodedKeySpec spec = (PKCS8EncodedKeySpec) keySpec;
+ byte[] encoded = spec.getEncoded();
+ PrivateKey result;
+ try
+ {
+ result = new DHKeyPairPKCS8Codec().decodePrivateKey(encoded);
+ return result;
+ }
+ catch (RuntimeException x)
+ {
+ InvalidKeySpecException y = new InvalidKeySpecException();
+ y.initCause(x);
+ throw y;
+ }
+ }
+ throw new InvalidKeySpecException("Unsupported (private) key specification");
+ }
+
+ protected KeySpec engineGetKeySpec(Key key, Class keySpec)
+ throws InvalidKeySpecException
+ {
+ if (key instanceof DHPublicKey)
+ {
+ if (keySpec.isAssignableFrom(DHPublicKeySpec.class))
+ {
+ DHPublicKey dssKey = (DHPublicKey) key;
+ BigInteger p = dssKey.getParams().getP();
+ BigInteger g = dssKey.getParams().getG();
+ BigInteger y = dssKey.getY();
+ return new DHPublicKeySpec(y, p, g);
+ }
+ if (keySpec.isAssignableFrom(X509EncodedKeySpec.class))
+ {
+ if (key instanceof GnuDHPublicKey)
+ {
+ GnuDHPublicKey dhKey = (GnuDHPublicKey) key;
+ byte[] encoded = dhKey.getEncoded(Registry.X509_ENCODING_ID);
+ return new X509EncodedKeySpec(encoded);
+ }
+ if (Registry.X509_ENCODING_SORT_NAME.equalsIgnoreCase(key.getFormat()))
+ {
+ byte[] encoded = key.getEncoded();
+ return new X509EncodedKeySpec(encoded);
+ }
+ throw new InvalidKeySpecException(
+ "Wrong key type or unsupported (public) key specification");
+ }
+ throw new InvalidKeySpecException("Unsupported (public) key specification");
+ }
+ if (key instanceof DHPrivateKey)
+ {
+ if (keySpec.isAssignableFrom(DHPrivateKeySpec.class))
+ {
+ DHPrivateKey dhKey = (DHPrivateKey) key;
+ BigInteger p = dhKey.getParams().getP();
+ BigInteger g = dhKey.getParams().getG();
+ BigInteger x = dhKey.getX();
+ return new DHPrivateKeySpec(x, p, g);
+ }
+ if (keySpec.isAssignableFrom(PKCS8EncodedKeySpec.class))
+ {
+ if (key instanceof GnuDHPrivateKey)
+ {
+ GnuDHPrivateKey dhKey = (GnuDHPrivateKey) key;
+ byte[] encoded = dhKey.getEncoded(Registry.PKCS8_ENCODING_ID);
+ return new PKCS8EncodedKeySpec(encoded);
+ }
+ if (Registry.PKCS8_ENCODING_SHORT_NAME.equalsIgnoreCase(key.getFormat()))
+ {
+ byte[] encoded = key.getEncoded();
+ return new PKCS8EncodedKeySpec(encoded);
+ }
+ throw new InvalidKeySpecException(
+ "Wrong key type or unsupported (private) key specification");
+ }
+ throw new InvalidKeySpecException(
+ "Unsupported (private) key specification");
+ }
+ throw new InvalidKeySpecException(
+ "Wrong key type or unsupported key specification");
+ }
+
+ protected Key engineTranslateKey(Key key) throws InvalidKeyException
+ {
+ if ((key instanceof GnuDHPublicKey) || (key instanceof GnuDHPrivateKey))
+ return key;
+ if (key instanceof DHPublicKey)
+ {
+ DHPublicKey dsaKey = (DHPublicKey) key;
+ BigInteger p = dsaKey.getParams().getP();
+ BigInteger g = dsaKey.getParams().getG();
+ BigInteger y = dsaKey.getY();
+ return new GnuDHPublicKey(Registry.X509_ENCODING_ID, null, p, g, y);
+ }
+ if (key instanceof DHPrivateKey)
+ {
+ DHPrivateKey dsaKey = (DHPrivateKey) key;
+ BigInteger p = dsaKey.getParams().getP();
+ BigInteger g = dsaKey.getParams().getG();
+ BigInteger x = dsaKey.getX();
+ return new GnuDHPrivateKey(Registry.PKCS8_ENCODING_ID, null, p, g, x);
+ }
+ throw new InvalidKeyException("Wrong key type");
+ }
+}