cryptix.security.rsa
Class RSAKeyGen

java.lang.Object
  cryptix.security.rsa.RSAKeyGen

Direct Known Subclasses:

VanityRSAKeyGen

public class RSAKeyGen

extends java.lang.Object

This class is an RSA key pair generator.

Copyright (c) 1995, 1996 Systemics Ltd (http://www.systemics.com/) All rights reserved.

Field Summary

protected RandomStream

rand

Constructor Summary

RSAKeyGen(RandomStream rand0)

Method Summary

SecretKey	createKey(int bitlen) This function creates a Secret Key.
SecretKey	createKey(int bitlen, RSAKeyGenObserver obsrv) An observer class is used to monitor progress.
static SecretKey	createKey(RandomStream rand, int bitlen) This function creates a Secret Key.
static SecretKey	createKey(RandomStream rand, int bitlen, RSAKeyGenObserver obsrv) An observer class is used to monitor progress.
protected SecretKey	deriveKeys(BigInteger p, BigInteger q, BigInteger e) An observer class is used to monitor progress.
BigInteger	randomPrime(int bitlen, RSAKeyGenObserver obsrv) An observer class is used to monitor progress.

Methods inherited from class java.lang.Object

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

Field Detail

rand

protected RandomStream rand

Constructor Detail

RSAKeyGen

public RSAKeyGen(RandomStream rand0)

Parameters:

rand0 - the source of random numbers for the prime number generation.

Method Detail

randomPrime

public BigInteger randomPrime(int bitlen,
                              RSAKeyGenObserver obsrv)

An observer class is used to monitor progress.

createKey

public static final SecretKey createKey(RandomStream rand,
                                        int bitlen)

This function creates a Secret Key.

N.B. this can take a LONG time.

Parameters:

rand - the source of random data for the prime number generation.

bitlen - the bit length of the final n

Returns:

a random RSA SecretKey.

createKey

public static final SecretKey createKey(RandomStream rand,
                                        int bitlen,
                                        RSAKeyGenObserver obsrv)

An observer class is used to monitor progress.

Parameters:

rand - the source of random data for the prime number generation.

bitlen - The bit length of the final n

obsrv - The callback interface.

Returns:

a random RSA SecretKey.

createKey

public SecretKey createKey(int bitlen)

This function creates a Secret Key.

N.B. this can take a LONG time.

Parameters:

bitlen - the bit length of the final n

Returns:

a random RSA SecretKey.

createKey

public SecretKey createKey(int bitlen,
                           RSAKeyGenObserver obsrv)

An observer class is used to monitor progress.

Parameters:

bitlen - The bit length of the final n

obsrv - The callback interface.

Returns:

a random RSA SecretKey.

deriveKeys

protected final SecretKey deriveKeys(BigInteger p,
                                     BigInteger q,
                                     BigInteger e)

An observer class is used to monitor progress.

Parameters:

p - the largest factor of n

q - the other factor of n

e - the initial public exponent (must be odd).

Returns:

a random RSA SecretKey.