gnu.crypto.key.rsa

Class GnuRSAPrivateKey

public class GnuRSAPrivateKey extends GnuRSAKey implements PrivateKey, RSAPrivateCrtKey

An object that embodies an RSA private key.

References:

  1. RSA-PSS Signature Scheme with Appendix, part B.
    Primitive specification and supporting documentation.
    Jakob Jonsson and Burt Kaliski.

Version: $Revision: 1.3 $

Constructor Summary
GnuRSAPrivateKey(BigInteger p, BigInteger q, BigInteger e, BigInteger d)

Trivial constructor.

Method Summary
booleanequals(Object obj)

Returns true if the designated object is an instance of this class and has the same RSA parameter values as this one.

BigIntegergetCrtCoefficient()
byte[]getEncoded(int format)

Returns the encoded form of this private key according to the designated format.

BigIntegergetPrimeExponentP()
BigIntegergetPrimeExponentQ()
BigIntegergetPrimeP()
BigIntegergetPrimeQ()
BigIntegergetPrivateExponent()
static GnuRSAPrivateKeyvalueOf(byte[] k)

A class method that takes the output of the encodePrivateKey() method of an RSA keypair codec object (an instance implementing IKeyPairCodec for RSA keys, and re-constructs an instance of this object.

Constructor Detail

GnuRSAPrivateKey

public GnuRSAPrivateKey(BigInteger p, BigInteger q, BigInteger e, BigInteger d)

Trivial constructor.

Parameters: p the modulus first prime divisor. q the modulus second prime divisor. e the public exponent. d the private exponent.

Method Detail

equals

public boolean equals(Object obj)

Returns true if the designated object is an instance of this class and has the same RSA parameter values as this one.

Parameters: obj the other non-null RSA key to compare to.

Returns: true if the designated object is of the same type and value as this one.

getCrtCoefficient

public BigInteger getCrtCoefficient()

getEncoded

public byte[] getEncoded(int format)

Returns the encoded form of this private key according to the designated format.

Parameters: format the desired format identifier of the resulting encoding.

Returns: the byte sequence encoding this key according to the designated format.

Throws: IllegalArgumentException if the format is not supported.

See Also: RSAKeyPairRawCodec

getPrimeExponentP

public BigInteger getPrimeExponentP()

getPrimeExponentQ

public BigInteger getPrimeExponentQ()

getPrimeP

public BigInteger getPrimeP()

getPrimeQ

public BigInteger getPrimeQ()

getPrivateExponent

public BigInteger getPrivateExponent()

valueOf

public static GnuRSAPrivateKey valueOf(byte[] k)

A class method that takes the output of the encodePrivateKey() method of an RSA keypair codec object (an instance implementing IKeyPairCodec for RSA keys, and re-constructs an instance of this object.

Parameters: k the contents of a previously encoded instance of this object.

Throws: ArrayIndexOutOfBoundsException if there is not enough bytes, in k, to represent a valid encoding of an instance of this object. IllegalArgumentException if the byte sequence does not represent a valid encoding of an instance of this object.

Copyright © 2001, 2002, 2003 Free Software Foundation, Inc. All Rights Reserved.