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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/DSSKeyPairGeneratorSpi.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/security/jce/sig/DSSKeyPairGeneratorSpi.java')
-rw-r--r-- | libjava/classpath/gnu/java/security/jce/sig/DSSKeyPairGeneratorSpi.java | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/security/jce/sig/DSSKeyPairGeneratorSpi.java b/libjava/classpath/gnu/java/security/jce/sig/DSSKeyPairGeneratorSpi.java new file mode 100644 index 000000000..2d33e1621 --- /dev/null +++ b/libjava/classpath/gnu/java/security/jce/sig/DSSKeyPairGeneratorSpi.java @@ -0,0 +1,146 @@ +/* DSSKeyPairGeneratorSpi.java -- + Copyright 2001, 2002, 2006 Free Software Foundation, Inc. + +This file is a 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 of the License, 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; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, 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.dss.DSSKeyPairGenerator; + +import java.security.InvalidAlgorithmParameterException; +import java.security.InvalidParameterException; +import java.security.SecureRandom; +import java.security.interfaces.DSAKeyPairGenerator; +import java.security.interfaces.DSAParams; +import java.security.spec.AlgorithmParameterSpec; +import java.security.spec.DSAParameterSpec; +import java.util.HashMap; + +/** + * The implementation of a {@link java.security.KeyPairGenerator} adapter class + * to wrap GNU DSS keypair generator instances. + * <p> + * In case the client does not explicitly initialize the KeyPairGenerator (via a + * call to an <code>initialize()</code> method), the GNU provider uses a + * default <i>modulus</i> size (keysize) of 1024 bits. + */ +public class DSSKeyPairGeneratorSpi + extends KeyPairGeneratorAdapter + implements DSAKeyPairGenerator +{ + public DSSKeyPairGeneratorSpi() + { + super(Registry.DSS_KPG); + } + + public void initialize(int keysize, SecureRandom random) + { + this.initialize(keysize, false, random); + } + + public void initialize(AlgorithmParameterSpec params, SecureRandom random) + throws InvalidAlgorithmParameterException + { + HashMap attributes = new HashMap(); + if (params != null) + { + if (! (params instanceof DSAParameterSpec)) + throw new InvalidAlgorithmParameterException( + "Parameters argument is not a non-null instance, or " + + "sub-instance, of java.security.spec.DSAParameterSpec"); + attributes.put(DSSKeyPairGenerator.DSS_PARAMETERS, params); + } + if (random != null) + attributes.put(DSSKeyPairGenerator.SOURCE_OF_RANDOMNESS, random); + + attributes.put(DSSKeyPairGenerator.PREFERRED_ENCODING_FORMAT, + Integer.valueOf(Registry.ASN1_ENCODING_ID)); + try + { + adaptee.setup(attributes); + } + catch (IllegalArgumentException x) + { + throw new InvalidAlgorithmParameterException(x.getMessage(), x); + } + } + + public void initialize(DSAParams params, SecureRandom random) + throws InvalidParameterException + { + if (params == null || !(params instanceof DSAParameterSpec)) + throw new InvalidParameterException( + "Parameters argument is either null or is not an instance, or " + + "sub-instance, of java.security.spec.DSAParameterSpec"); + DSAParameterSpec spec = (DSAParameterSpec) params; + try + { + this.initialize((AlgorithmParameterSpec) spec, random); + } + catch (InvalidAlgorithmParameterException x) + { + InvalidParameterException y = new InvalidParameterException(x.getMessage()); + y.initCause(x); + throw y; + } + } + + public void initialize(int modlen, boolean genParams, SecureRandom random) + throws InvalidParameterException + { + HashMap attributes = new HashMap(); + attributes.put(DSSKeyPairGenerator.MODULUS_LENGTH, Integer.valueOf(modlen)); + if (random != null) + attributes.put(DSSKeyPairGenerator.SOURCE_OF_RANDOMNESS, random); + + attributes.put(DSSKeyPairGenerator.USE_DEFAULTS, + Boolean.valueOf(! genParams)); + attributes.put(DSSKeyPairGenerator.STRICT_DEFAULTS, Boolean.TRUE); + attributes.put(DSSKeyPairGenerator.PREFERRED_ENCODING_FORMAT, + Integer.valueOf(Registry.ASN1_ENCODING_ID)); + try + { + adaptee.setup(attributes); + } + catch (IllegalArgumentException x) + { + InvalidParameterException y = new InvalidParameterException(x.getMessage()); + y.initCause(x); + throw y; + } + } +} |