gnu.crypto.key.rsa

Class GnuRSAPublicKey

Implemented Interfaces:
Key, PublicKey, RSAKey, RSAPublicKey

public class GnuRSAPublicKey
extends GnuRSAKey
implements PublicKey, RSAPublicKey

An object that encapsulates an RSA public 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

GnuRSAPublicKey(BigInteger n, BigInteger e)
Trivial constructor.

Method Summary

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.
byte[]
getEncoded(int format)
Returns the encoded form of this public key according to the designated format.
static GnuRSAPublicKey
valueOf(byte[] k)
A class method that takes the output of the encodePublicKey() method of an RSA keypair codec object (an instance implementing IKeyPairCodec for RSA keys, and re-constructs an instance of this object.

Methods inherited from class gnu.crypto.key.rsa.GnuRSAKey

equals, getAlgorithm, getE, getEncoded, getEncoded, getFormat, getModulus, getN, getPublicExponent

Constructor Details

GnuRSAPublicKey

public GnuRSAPublicKey(BigInteger n,
                       BigInteger e)
Trivial constructor.
Parameters:
n - the modulus.
e - the public exponent.

Method Details

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.
Overrides:
equals in interface GnuRSAKey
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.

getEncoded

public byte[] getEncoded(int format)
Returns the encoded form of this public key according to the designated format.
Overrides:
getEncoded in interface GnuRSAKey
Parameters:
format - the desired format identifier of the resulting encoding.
Returns:
the byte sequence encoding this key according to the designated format.

valueOf

public static GnuRSAPublicKey valueOf(byte[] k)
A class method that takes the output of the encodePublicKey() 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.

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