diff options
Diffstat (limited to 'gnu/javax/crypto/jce/sig/DHKeyPairGeneratorSpi.java')
-rw-r--r-- | gnu/javax/crypto/jce/sig/DHKeyPairGeneratorSpi.java | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/gnu/javax/crypto/jce/sig/DHKeyPairGeneratorSpi.java b/gnu/javax/crypto/jce/sig/DHKeyPairGeneratorSpi.java new file mode 100644 index 000000000..5b3badc8d --- /dev/null +++ b/gnu/javax/crypto/jce/sig/DHKeyPairGeneratorSpi.java @@ -0,0 +1,91 @@ +/* DHKeyPairGeneratorSpi.java -- DH key-pair generator 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 java.security.InvalidAlgorithmParameterException; +import java.security.SecureRandom; +import java.security.spec.AlgorithmParameterSpec; +import java.util.HashMap; + +import javax.crypto.spec.DHGenParameterSpec; + +import gnu.java.security.Registry; +import gnu.java.security.jce.sig.KeyPairGeneratorAdapter; +import gnu.javax.crypto.key.dh.GnuDHKeyPairGenerator; + +public class DHKeyPairGeneratorSpi + extends KeyPairGeneratorAdapter +{ + public DHKeyPairGeneratorSpi() + { + super(Registry.DH_KPG); + } + + public void initialize(int keysize, SecureRandom random) + { + HashMap attributes = new HashMap(); + attributes.put(GnuDHKeyPairGenerator.PRIME_SIZE, new Integer(keysize)); + if (random != null) + attributes.put(GnuDHKeyPairGenerator.SOURCE_OF_RANDOMNESS, random); + + attributes.put(GnuDHKeyPairGenerator.PREFERRED_ENCODING_FORMAT, + new Integer(Registry.ASN1_ENCODING_ID)); + adaptee.setup(attributes); + } + + public void initialize(AlgorithmParameterSpec params, SecureRandom random) + throws InvalidAlgorithmParameterException + { + HashMap attributes = new HashMap(); + if (params != null) + { + if (! (params instanceof DHGenParameterSpec)) + throw new InvalidAlgorithmParameterException("params"); + + attributes.put(GnuDHKeyPairGenerator.DH_PARAMETERS, params); + } + + if (random != null) + attributes.put(GnuDHKeyPairGenerator.SOURCE_OF_RANDOMNESS, random); + + attributes.put(GnuDHKeyPairGenerator.PREFERRED_ENCODING_FORMAT, + new Integer(Registry.ASN1_ENCODING_ID)); + adaptee.setup(attributes); + } +} |