4f9533c772
Imported GNU Classpath 0.90
* scripts/makemake.tcl: LocaleData.java moved to gnu/java/locale.
* sources.am: Regenerated.
* gcj/javaprims.h: Regenerated.
* Makefile.in: Regenerated.
* gcj/Makefile.in: Regenerated.
* include/Makefile.in: Regenerated.
* testsuite/Makefile.in: Regenerated.
* gnu/java/lang/VMInstrumentationImpl.java: New override.
* gnu/java/net/local/LocalSocketImpl.java: Likewise.
* gnu/classpath/jdwp/VMMethod.java: Likewise.
* gnu/classpath/jdwp/VMVirtualMachine.java: Update to latest
interface.
* java/lang/Thread.java: Add UncaughtExceptionHandler.
* java/lang/reflect/Method.java: Implements GenericDeclaration and
isSynthetic(),
* java/lang/reflect/Field.java: Likewise.
* java/lang/reflect/Constructor.java
* java/lang/Class.java: Implements Type, GenericDeclaration,
getSimpleName() and getEnclosing*() methods.
* java/lang/Class.h: Add new public methods.
* java/lang/Math.java: Add signum(), ulp() and log10().
* java/lang/natMath.cc (log10): New function.
* java/security/VMSecureRandom.java: New override.
* java/util/logging/Logger.java: Updated to latest classpath
version.
* java/util/logging/LogManager.java: New override.
From-SVN: r113887
167 lines
6.3 KiB
Java
167 lines
6.3 KiB
Java
/* ISignature.java --
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Copyright (C) 2001, 2002, 2003, 2006 Free Software Foundation, Inc.
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This file is a part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
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USA
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package gnu.java.security.sig;
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import java.util.Map;
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/**
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* <p>The visible methods of every signature-with-appendix scheme.</p>
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*
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* <p>The Handbook of Applied Cryptography (HAC), by A. Menezes & al. states:
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* "Digital signature schemes which require the message as input to the
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* verification algorithm are called <i>digital signature schemes with
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* appendix</i>. ... They rely on cryptographic hash functions rather than
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* customised redundancy functions, and are less prone to existential forgery
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* attacks."</p>
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*
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* <p>References:</p>
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* <ol>
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* <li><a href="http://www.cacr.math.uwaterloo.ca/hac/">Handbook of Applied
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* Cryptography</a>, Alfred J. Menezes, Paul C. van Oorschot and Scott A.
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* Vanstone. Section 11.2.2 Digital signature schemes with appendix.</li>
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* </ol>
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*/
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public interface ISignature extends Cloneable
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{
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// Constants
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// -------------------------------------------------------------------------
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/** Property name of the verifier's public key. */
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public static final String VERIFIER_KEY = "gnu.crypto.sig.public.key";
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/** Property name of the signer's private key. */
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public static final String SIGNER_KEY = "gnu.crypto.sig.private.key";
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/**
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* Property name of an optional {@link java.security.SecureRandom},
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* {@link java.util.Random}, or {@link gnu.crypto.prng.IRandom} instance to
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* use. The default is to use a classloader singleton from
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* {@link gnu.crypto.util.PRNG}.
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*/
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public static final String SOURCE_OF_RANDOMNESS = "gnu.crypto.sig.prng";
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// Methods
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// -------------------------------------------------------------------------
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/**
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* <p>Returns the canonical name of this signature scheme.</p>
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*
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* @return the canonical name of this instance.
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*/
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String name();
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/**
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* <p>Initialises this instance for signature verification.</p>
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*
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* @param attributes the attributes to use for setting up this instance.
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* @throws IllegalArgumentException if the designated public key is not
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* appropriate for this signature scheme.
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* @see #SOURCE_OF_RANDOMNESS
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* @see #VERIFIER_KEY
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*/
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void setupVerify(Map attributes) throws IllegalArgumentException;
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/**
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* <p>Initialises this instance for signature generation.</p>
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*
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* @param attributes the attributes to use for setting up this instance.
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* @throws IllegalArgumentException if the designated private key is not
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* appropriate for this signature scheme.
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* @see #SOURCE_OF_RANDOMNESS
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* @see #SIGNER_KEY
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*/
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void setupSign(Map attributes) throws IllegalArgumentException;
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/**
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* <p>Digests one byte of a message for signing or verification purposes.</p>
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*
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* @param b the message byte to digest.
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* @throws IllegalStateException if this instance was not setup for
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* signature generation/verification.
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*/
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void update(byte b) throws IllegalStateException;
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/**
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* <p>Digests a sequence of bytes from a message for signing or verification
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* purposes.</p>
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*
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* @param buffer the byte sequence to consider.
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* @param offset the byte poisition in <code>buffer</code> of the first byte
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* to consider.
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* @param length the number of bytes in <code>buffer</code> starting from the
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* byte at index <code>offset</code> to digest.
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* @throws IllegalStateException if this instance was not setup for
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* signature generation/verification.
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*/
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void update(byte[] buffer, int offset, int length)
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throws IllegalStateException;
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/**
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* <p>Terminates a signature generation phase by digesting and processing the
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* context of the underlying message digest algorithm instance.</p>
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*
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* @return a {@link Object} representing the native output of the signature
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* scheme implementation.
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* @throws IllegalStateException if this instance was not setup for
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* signature generation.
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*/
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Object sign() throws IllegalStateException;
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/**
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* <p>Terminates a signature verification phase by digesting and processing
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* the context of the underlying message digest algorithm instance.</p>
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*
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* @param signature a native signature object previously generated by an
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* invocation of the <code>sign()</code> method.
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* @return <code>true</code> iff the outpout of the verification phase
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* confirms that the designated signature object has been generated using the
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* corresponding public key of the recepient.
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* @throws IllegalStateException if this instance was not setup for
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* signature verification.
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*/
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boolean verify(Object signature) throws IllegalStateException;
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/**
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* <p>Returns a clone copy of this instance.</p>
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*
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* @return a clone copy of this instance.
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*/
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Object clone();
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}
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