gnu.crypto.key.rsa
Class RSAKeyPairGenerator

java.lang.Object
  gnu.crypto.key.rsa.RSAKeyPairGenerator

All Implemented Interfaces:

IKeyPairGenerator

public class RSAKeyPairGenerator

extends java.lang.Object

implements IKeyPairGenerator

A key-pair generator for asymetric keys to use in conjunction with the RSA scheme.

Reference:

1. RSA-PSS Signature Scheme with Appendix, part B. Primitive specification and supporting documentation. Jakob Jonsson and Burt Kaliski.
2. Handbook of Applied Cryptography, Alfred J. Menezes, Paul C. van Oorschot and Scott A. Vanstone. Section 11.3 RSA and related signature schemes.

Version:

$Revision: 1.2 $

Field Summary

static java.lang.String	MODULUS_LENGTH Property name of the length (Integer) of the modulus of an RSA key.
static java.lang.String	RSA_PARAMETERS Property name of an optional RSAKeyGenParameterSpec instance to use for this generator's n, and e values.
static java.lang.String	SOURCE_OF_RANDOMNESS Property name of an optional SecureRandom instance to use.

Constructor Summary

RSAKeyPairGenerator()

Method Summary

java.security.KeyPair	generate() The algorithm used here is described in nessie-pss-B.pdf document which is part of the RSA-PSS submission to NESSIE.
java.lang.String	name() Returns the canonical name of this keypair generator.
void	setup(java.util.Map attributes) Configures this instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

MODULUS_LENGTH

public static final java.lang.String MODULUS_LENGTH

Property name of the length (Integer) of the modulus of an RSA key.

See Also:

Constant Field Values

SOURCE_OF_RANDOMNESS

public static final java.lang.String SOURCE_OF_RANDOMNESS

Property name of an optional SecureRandom instance to use. The default is to use a classloader singleton from PRNG.

See Also:

Constant Field Values

RSA_PARAMETERS

public static final java.lang.String RSA_PARAMETERS

Property name of an optional RSAKeyGenParameterSpec instance to use for this generator's n, and e values. The default is to generate n and use a fixed value for e (Fermat's F4 number).

See Also:

Constant Field Values

Constructor Detail

RSAKeyPairGenerator

public RSAKeyPairGenerator()

Method Detail

name

public java.lang.String name()

Description copied from interface: IKeyPairGenerator

Returns the canonical name of this keypair generator.

Specified by:

name in interface IKeyPairGenerator

Returns:

the canonical name of this instance.

setup

public void setup(java.util.Map attributes)

Configures this instance.

Specified by:

setup in interface IKeyPairGenerator

Parameters:

attributes - the map of name/value pairs to use.

Throws:

java.lang.IllegalArgumentException - if the designated MODULUS_LENGTH value is less than 1024.

generate

public java.security.KeyPair generate()

The algorithm used here is described in nessie-pss-B.pdf document which is part of the RSA-PSS submission to NESSIE.

Specified by:

generate in interface IKeyPairGenerator

Returns:

an RSA keypair.