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Diffstat (limited to 'libjava/java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java')
| -rw-r--r-- | libjava/java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/libjava/java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java b/libjava/java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java new file mode 100644 index 0000000..f2cb88b --- /dev/null +++ b/libjava/java/security/spec/RSAMultiPrimePrivateCrtKeySpec.java @@ -0,0 +1,218 @@ +/* PSSParameterSpec.java -- + Copyright (C) 2003, 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., 59 Temple Place, Suite 330, Boston, MA +02111-1307 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 java.security.spec; + +import java.math.BigInteger; +import java.security.spec.RSAOtherPrimeInfo; + +/** + * This class specifies an RSA multi-prime private key, as defined in the + * PKCS#1 v2.1, using the <i>Chinese Remainder Theorem</i> (CRT) information + * values for efficiency. + * + * @since 1.4 + * @see java.security.Key + * @see java.security.KeyFactory + * @see KeySpec + * @see PKCS8EncodedKeySpec + * @see RSAPrivateKeySpec + * @see RSAPublicKeySpec + * @see RSAOtherPrimeInfo + */ +public class RSAMultiPrimePrivateCrtKeySpec extends RSAPrivateKeySpec +{ + // Constants and fields + // -------------------------------------------------------------------------- + + private BigInteger publicExponent; + private BigInteger primeP; + private BigInteger primeQ; + private BigInteger primeExponentP; + private BigInteger primeExponentQ; + private BigInteger crtCoefficient; + private RSAOtherPrimeInfo[] otherPrimeInfo; + + // Constructor(s) + // -------------------------------------------------------------------------- + + /** + * <p>Creates a new <code>RSAMultiPrimePrivateCrtKeySpec</code> given the + * modulus, publicExponent, privateExponent, primeP, primeQ, primeExponentP, + * primeExponentQ, crtCoefficient, and otherPrimeInfo as defined in PKCS#1 + * v2.1.</p> + * + * <p>Note that <code>otherPrimeInfo</code> is cloned when constructing this + * object.</p> + * + * @param modulus the modulus n. + * @param publicExponent the public exponent e. + * @param privateExponent the private exponent d. + * @param primeP the prime factor p of n. + * @param primeQ the prime factor q of n. + * @param primeExponentP this is d mod (p-1). + * @param primeExponentQ this is d mod (q-1). + * @param crtCoefficient the Chinese Remainder Theorem coefficient q-1 mod p. + * @param otherPrimeInfo triplets of the rest of primes, <code>null</code> + * can be specified if there are only two prime factors (p and q). + * @throws NullPointerException if any of the parameters, i.e. modulus, + * publicExponent, privateExponent, primeP, primeQ, primeExponentP, + * primeExponentQ, crtCoefficient, is <code>null</code>. + * @throws IllegalArgumentException if an empty, i.e. 0-length, + * otherPrimeInfo is specified. + */ + public RSAMultiPrimePrivateCrtKeySpec(BigInteger modulus, + BigInteger publicExponent, + BigInteger privateExponent, + BigInteger primeP, + BigInteger primeQ, + BigInteger primeExponentP, + BigInteger primeExponentQ, + BigInteger crtCoefficient, + RSAOtherPrimeInfo[] otherPrimeInfo) + { + super(modulus, privateExponent); + + if (modulus == null) + throw new NullPointerException("modulus"); + if (publicExponent == null) + throw new NullPointerException("publicExponent"); + if (privateExponent == null) + throw new NullPointerException("privateExponent"); + if (primeP == null) + throw new NullPointerException("primeP"); + if (primeQ == null) + throw new NullPointerException("primeQ"); + if (primeExponentP == null) + throw new NullPointerException("primeExponentP"); + if (primeExponentQ == null) + throw new NullPointerException("primeExponentQ"); + if (crtCoefficient == null) + throw new NullPointerException("crtCoefficient"); + if (otherPrimeInfo != null) + if (otherPrimeInfo.length == 0) + throw new IllegalArgumentException(); + else + this.otherPrimeInfo = (RSAOtherPrimeInfo[]) otherPrimeInfo.clone(); + + this.publicExponent = publicExponent; + this.primeP = primeP; + this.primeQ = primeQ; + this.primeExponentP = primeExponentP; + this.primeExponentQ = primeExponentQ; + this.crtCoefficient = crtCoefficient; + } + + // Class methods + // -------------------------------------------------------------------------- + + // Instance methods + // -------------------------------------------------------------------------- + + /** + * Returns the public exponent. + * + * @return the public exponent. + */ + public BigInteger getPublicExponent() + { + return this.publicExponent; + } + + /** + * Returns the primeP. + * + * @return the primeP. + */ + public BigInteger getPrimeP() + { + return this.primeP; + } + + /** + * Returns the primeQ. + * + * @return the primeQ. + */ + public BigInteger getPrimeQ() + { + return this.primeQ; + } + + /** + * Returns the primeExponentP. + * + * @return the primeExponentP. + */ + public BigInteger getPrimeExponentP() + { + return this.primeExponentP; + } + + /** + * Returns the primeExponentQ. + * + * @return the primeExponentQ. + */ + public BigInteger getPrimeExponentQ() + { + return this.primeExponentQ; + } + + /** + * Returns the crtCoefficient. + * + * @return the crtCoefficient. + */ + public BigInteger getCrtCoefficient() + { + return this.crtCoefficient; + } + + /** + * Returns a copy of the otherPrimeInfo or <code>null</code> if there are + * only two prime factors (p and q). + * + * @return the otherPrimeInfo. + */ + public RSAOtherPrimeInfo[] getOtherPrimeInfo() + { + return this.otherPrimeInfo == null + ? null + : (RSAOtherPrimeInfo[]) this.otherPrimeInfo.clone(); + } +} |