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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/security/jce/sig/RSAKeyFactory.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/security/jce/sig/RSAKeyFactory.java')
-rw-r--r-- | libjava/classpath/gnu/java/security/jce/sig/RSAKeyFactory.java | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/security/jce/sig/RSAKeyFactory.java b/libjava/classpath/gnu/java/security/jce/sig/RSAKeyFactory.java new file mode 100644 index 000000000..3ba49edc2 --- /dev/null +++ b/libjava/classpath/gnu/java/security/jce/sig/RSAKeyFactory.java @@ -0,0 +1,231 @@ +/* RSAKeyFactory.java -- RSA 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.java.security.jce.sig; + +import gnu.java.security.Registry; +import gnu.java.security.key.rsa.GnuRSAPrivateKey; +import gnu.java.security.key.rsa.GnuRSAPublicKey; +import gnu.java.security.key.rsa.RSAKeyPairPKCS8Codec; +import gnu.java.security.key.rsa.RSAKeyPairX509Codec; + +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.interfaces.RSAPrivateCrtKey; +import java.security.interfaces.RSAPrivateKey; +import java.security.interfaces.RSAPublicKey; +import java.security.spec.InvalidKeySpecException; +import java.security.spec.KeySpec; +import java.security.spec.PKCS8EncodedKeySpec; +import java.security.spec.RSAPrivateCrtKeySpec; +import java.security.spec.RSAPrivateKeySpec; +import java.security.spec.RSAPublicKeySpec; +import java.security.spec.X509EncodedKeySpec; + +public class RSAKeyFactory + extends KeyFactorySpi +{ + // implicit 0-arguments constructor + + protected PublicKey engineGeneratePublic(KeySpec keySpec) + throws InvalidKeySpecException + { + if (keySpec instanceof RSAPublicKeySpec) + { + RSAPublicKeySpec spec = (RSAPublicKeySpec) keySpec; + BigInteger n = spec.getModulus(); + BigInteger e = spec.getPublicExponent(); + return new GnuRSAPublicKey(Registry.X509_ENCODING_ID, n, e); + } + if (keySpec instanceof X509EncodedKeySpec) + { + X509EncodedKeySpec spec = (X509EncodedKeySpec) keySpec; + byte[] encoded = spec.getEncoded(); + PublicKey result; + try + { + return new RSAKeyPairX509Codec().decodePublicKey(encoded); + } + catch (RuntimeException x) + { + throw new InvalidKeySpecException(x.getMessage(), x); + } + } + throw new InvalidKeySpecException("Unsupported (public) key specification"); + } + + protected PrivateKey engineGeneratePrivate(KeySpec keySpec) + throws InvalidKeySpecException + { + if (keySpec instanceof RSAPrivateCrtKeySpec) + { + RSAPrivateCrtKeySpec spec = (RSAPrivateCrtKeySpec) keySpec; + BigInteger n = spec.getModulus(); + BigInteger e = spec.getPublicExponent(); + BigInteger d = spec.getPrivateExponent(); + BigInteger p = spec.getPrimeP(); + BigInteger q = spec.getPrimeQ(); + BigInteger dP = spec.getPrimeExponentP(); + BigInteger dQ = spec.getPrimeExponentQ(); + BigInteger qInv = spec.getCrtCoefficient(); + return new GnuRSAPrivateKey(Registry.PKCS8_ENCODING_ID, + n, e, d, p, q, dP, dQ, qInv); + } + if (keySpec instanceof PKCS8EncodedKeySpec) + { + PKCS8EncodedKeySpec spec = (PKCS8EncodedKeySpec) keySpec; + byte[] encoded = spec.getEncoded(); + PrivateKey result; + try + { + return new RSAKeyPairPKCS8Codec().decodePrivateKey(encoded); + } + catch (RuntimeException x) + { + throw new InvalidKeySpecException(x.getMessage(), x); + } + } + throw new InvalidKeySpecException("Unsupported (private) key specification"); + } + + protected KeySpec engineGetKeySpec(Key key, Class keySpec) + throws InvalidKeySpecException + { + if (key instanceof RSAPublicKey) + { + if (keySpec.isAssignableFrom(RSAPublicKeySpec.class)) + { + RSAPublicKey rsaKey = (RSAPublicKey) key; + BigInteger n = rsaKey.getModulus(); + BigInteger e = rsaKey.getPublicExponent(); + return new RSAPublicKeySpec(n, e); + } + if (keySpec.isAssignableFrom(X509EncodedKeySpec.class)) + { + if (key instanceof GnuRSAPublicKey) + { + GnuRSAPublicKey rsaKey = (GnuRSAPublicKey) key; + byte[] encoded = rsaKey.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 RSAPrivateCrtKey) + && keySpec.isAssignableFrom(RSAPrivateCrtKeySpec.class)) + { + RSAPrivateCrtKey rsaKey = (RSAPrivateCrtKey) key; + BigInteger n = rsaKey.getModulus(); + BigInteger e = rsaKey.getPublicExponent(); + BigInteger d = rsaKey.getPrivateExponent(); + BigInteger p = rsaKey.getPrimeP(); + BigInteger q = rsaKey.getPrimeQ(); + BigInteger dP = rsaKey.getPrimeExponentP(); + BigInteger dQ = rsaKey.getPrimeExponentQ(); + BigInteger qInv = rsaKey.getCrtCoefficient(); + return new RSAPrivateCrtKeySpec(n, e, d, p, q, dP, dQ, qInv); + } + if ((key instanceof RSAPrivateKey) + && keySpec.isAssignableFrom(RSAPrivateKeySpec.class)) + { + RSAPrivateKey rsaKey = (RSAPrivateKey) key; + BigInteger n = rsaKey.getModulus(); + BigInteger d = rsaKey.getPrivateExponent(); + return new RSAPrivateKeySpec(n, d); + } + if (keySpec.isAssignableFrom(PKCS8EncodedKeySpec.class)) + { + if (key instanceof GnuRSAPrivateKey) + { + GnuRSAPrivateKey rsaKey = (GnuRSAPrivateKey) key; + byte[] encoded = rsaKey.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( + "Wrong key type or unsupported key specification"); + } + + protected Key engineTranslateKey(Key key) throws InvalidKeyException + { + if ((key instanceof GnuRSAPublicKey) || (key instanceof GnuRSAPrivateKey)) + return key; + + if (key instanceof RSAPublicKey) + { + RSAPublicKey rsaKey = (RSAPublicKey) key; + BigInteger n = rsaKey.getModulus(); + BigInteger e = rsaKey.getPublicExponent(); + return new GnuRSAPublicKey(Registry.X509_ENCODING_ID, n, e); + } + if (key instanceof RSAPrivateCrtKey) + { + RSAPrivateCrtKey rsaKey = (RSAPrivateCrtKey) key; + BigInteger n = rsaKey.getModulus(); + BigInteger e = rsaKey.getPublicExponent(); + BigInteger d = rsaKey.getPrivateExponent(); + BigInteger p = rsaKey.getPrimeP(); + BigInteger q = rsaKey.getPrimeQ(); + BigInteger dP = rsaKey.getPrimeExponentP(); + BigInteger dQ = rsaKey.getPrimeExponentQ(); + BigInteger qInv = rsaKey.getCrtCoefficient(); + return new GnuRSAPrivateKey(Registry.PKCS8_ENCODING_ID, + n, e, d, p, q, dP, dQ, qInv); + } + throw new InvalidKeyException("Unsupported key type"); + } +} |