diff options
Diffstat (limited to 'libjava/classpath/gnu/java/security/key/rsa/GnuRSAPrivateKey.java')
| -rw-r--r-- | libjava/classpath/gnu/java/security/key/rsa/GnuRSAPrivateKey.java | 119 |
1 files changed, 55 insertions, 64 deletions
diff --git a/libjava/classpath/gnu/java/security/key/rsa/GnuRSAPrivateKey.java b/libjava/classpath/gnu/java/security/key/rsa/GnuRSAPrivateKey.java index 92053448763..00a1b822ad0 100644 --- a/libjava/classpath/gnu/java/security/key/rsa/GnuRSAPrivateKey.java +++ b/libjava/classpath/gnu/java/security/key/rsa/GnuRSAPrivateKey.java @@ -38,42 +38,39 @@ exception statement from your version. */ package gnu.java.security.key.rsa; -import gnu.classpath.SystemProperties; +import gnu.java.security.Configuration; +import gnu.java.security.action.GetPropertyAction; import gnu.java.security.Registry; import gnu.java.security.key.IKeyPairCodec; import java.math.BigInteger; +import java.security.AccessController; import java.security.PrivateKey; import java.security.interfaces.RSAPrivateCrtKey; import java.security.interfaces.RSAPrivateKey; /** - * <p>An object that embodies an RSA private key.</p> - * - * <p>References:</p> + * An object that embodies an RSA private key. + * <p> + * References: * <ol> - * <li><a href="http://www.cosic.esat.kuleuven.ac.be/nessie/workshop/submissions/rsa-pss.zip"> - * RSA-PSS Signature Scheme with Appendix, part B.</a><br> - * Primitive specification and supporting documentation.<br> - * Jakob Jonsson and Burt Kaliski.</li> + * <li><a + * href="http://www.cosic.esat.kuleuven.ac.be/nessie/workshop/submissions/rsa-pss.zip"> + * RSA-PSS Signature Scheme with Appendix, part B.</a><br> + * Primitive specification and supporting documentation.<br> + * Jakob Jonsson and Burt Kaliski.</li> * </ol> */ -public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, - RSAPrivateCrtKey +public class GnuRSAPrivateKey + extends GnuRSAKey + implements PrivateKey, RSAPrivateCrtKey { - // Constants and variables - // ------------------------------------------------------------------------- - - private static final boolean DEBUG = false; - /** The first prime divisor of the modulus. */ private final BigInteger p; /** The second prime divisor of the modulus. */ private final BigInteger q; - /** The public exponent of an RSA key. */ - // private final BigInteger e; /** The private exponent of an RSA private key. */ private final BigInteger d; @@ -89,21 +86,17 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, /** String representation of this key. Cached for speed. */ private transient String str; - // Constructor(s) - // ------------------------------------------------------------------------- - /** * Convenience constructor. Calls the constructor with 5 arguments passing * {@link Registry#RAW_ENCODING_ID} as the identifier of the preferred * encoding format. - * + * * @param p the modulus first prime divisor. * @param q the modulus second prime divisor. * @param e the public exponent. * @param d the private exponent. */ - public GnuRSAPrivateKey(BigInteger p, BigInteger q, BigInteger e, - BigInteger d) + public GnuRSAPrivateKey(BigInteger p, BigInteger q, BigInteger e, BigInteger d) { this(Registry.RAW_ENCODING_ID, p, q, e, d); } @@ -122,7 +115,9 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, public GnuRSAPrivateKey(int preferredFormat, BigInteger p, BigInteger q, BigInteger e, BigInteger d) { - this(preferredFormat, p.multiply(q), e, d, p, q, + this(preferredFormat, + p.multiply(q), + e, d, p, q, e.modInverse(p.subtract(BigInteger.ONE)), e.modInverse(q.subtract(BigInteger.ONE)), q.modInverse(p)); @@ -135,19 +130,20 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, * @param preferredFormat the indetifier of the preferred encoding format to * use when externalizing this key. * @param n the public modulus, which is also the product of <code>p</code> - * and <code>q</code>. + * and <code>q</code>. * @param e the public exponent. * @param d the private exponent. * @param p the modulus first prime divisor. * @param q the modulus second prime divisor. * @param dP the first prime's exponen. A positive integer less than - * <code>p</code> and <code>q</code>, satisfying <code>e * dP = 1 (mod p-1) - * </code>. + * <code>p</code> and <code>q</code>, satisfying + * <code>e * dP = 1 (mod p-1)</code>. * @param dQ the second prime's exponent. A positive integer less than - * <code>p</code> and <code>q</code>, satisfying <code>e * dQ = 1 (mod p-1) - * </code>. + * <code>p</code> and <code>q</code>, satisfying + * <code>e * dQ = 1 (mod p-1)</code>. * @param qInv the Chinese Remainder Theorem coefiicient. A positive integer - * less than <code>p</code>, satisfying <code>q * qInv = 1 (mod p)</code>. + * less than <code>p</code>, satisfying + * <code>q * qInv = 1 (mod p)</code>. */ public GnuRSAPrivateKey(int preferredFormat, BigInteger n, BigInteger e, BigInteger d, BigInteger p, BigInteger q, @@ -156,24 +152,20 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, super(preferredFormat == Registry.ASN1_ENCODING_ID ? Registry.PKCS8_ENCODING_ID : preferredFormat, n, e); - this.d = d; this.p = p; this.q = q; // the exponents dP and dQ are positive integers less than p and q // respectively satisfying - // e * dP = 1 (mod p-1); - // e * dQ = 1 (mod q-1), + // e * dP = 1 (mod p-1); + // e * dQ = 1 (mod q-1), this.dP = dP; this.dQ = dQ; // the CRT coefficient qInv is a positive integer less than p satisfying - // q * qInv = 1 (mod p). + // q * qInv = 1 (mod p). this.qInv = qInv; } - // Class methods - // ------------------------------------------------------------------------- - /** * A class method that takes the output of the <code>encodePrivateKey()</code> * method of an RSA keypair codec object (an instance implementing @@ -198,14 +190,10 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, catch (IllegalArgumentException ignored) { } - // try PKCS#8 codec return (GnuRSAPrivateKey) new RSAKeyPairPKCS8Codec().decodePrivateKey(k); } - // Instance methods - // ------------------------------------------------------------------------- - public BigInteger getPrimeP() { return p; @@ -231,22 +219,18 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, return qInv; } - // java.security.interfaces.RSAPrivateKey interface implementation --------- - public BigInteger getPrivateExponent() { return d; } - // Other instance methods -------------------------------------------------- - /** - * Returns the encoded form of this private key according to the - * designated format. - * + * Returns the encoded form of this private key according to the designated + * format. + * * @param format the desired format identifier of the resulting encoding. * @return the byte sequence encoding this key according to the designated - * format. + * format. * @throws IllegalArgumentException if the format is not supported. * @see RSAKeyPairRawCodec * @see RSAKeyPairPKCS8Codec @@ -270,19 +254,18 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, } /** - * <p>Returns <code>true</code> if the designated object is an instance of - * this class and has the same RSA parameter values as this one.</p> - * + * Returns <code>true</code> if the designated object is an instance of this + * class and has the same RSA parameter values as this one. + * * @param obj the other non-null RSA key to compare to. * @return <code>true</code> if the designated object is of the same type - * and value as this one. + * and value as this one. */ public boolean equals(final Object obj) { if (obj == null) - { - return false; - } + return false; + if (obj instanceof RSAPrivateKey) { final RSAPrivateKey that = (RSAPrivateKey) obj; @@ -304,16 +287,24 @@ public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, { if (str == null) { - String ls = SystemProperties.getProperty("line.separator"); + String ls = (String) AccessController.doPrivileged + (new GetPropertyAction("line.separator")); str = new StringBuilder(this.getClass().getName()).append("(") .append(super.toString()).append(",").append(ls) - .append("d=0x").append(DEBUG ? d.toString(16) : "**...*").append(ls) - .append("p=0x").append(DEBUG ? p.toString(16) : "**...*").append(ls) - .append("q=0x").append(DEBUG ? q.toString(16) : "**...*").append(ls) - .append("dP=0x").append(DEBUG ? dP.toString(16) : "**...*").append(ls) - .append("dQ=0x").append(DEBUG ? dQ.toString(16) : "**...*").append(ls) - .append("qInv=0x").append(DEBUG ? qInv.toString(16) : "**...*").append(ls) - .append(")").toString(); + .append("d=0x").append(Configuration.DEBUG ? d.toString(16) + : "**...*").append(ls) + .append("p=0x").append(Configuration.DEBUG ? p.toString(16) + : "**...*").append(ls) + .append("q=0x").append(Configuration.DEBUG ? q.toString(16) + : "**...*").append(ls) + .append("dP=0x").append(Configuration.DEBUG ? dP.toString(16) + : "**...*").append(ls) + .append("dQ=0x").append(Configuration.DEBUG ? dQ.toString(16) + : "**...*").append(ls) + .append("qInv=0x").append(Configuration.DEBUG ? qInv.toString(16) + : "**...*").append(ls) + .append(")") + .toString(); } return str; } |
