Package org.bouncycastle.crypto.generators

Class RSABlindingFactorGenerator

java.lang.Object

org.bouncycastle.crypto.generators.RSABlindingFactorGenerator

public class RSABlindingFactorGenerator
extends Object

Generate a random factor suitable for use with RSA blind signatures as outlined in Chaum's blinding and unblinding as outlined in "Handbook of Applied Cryptography", page 475.

Constructor Summary

Constructors

Constructor	Description
RSABlindingFactorGenerator()

Method Summary

Modifier and Type	Method	Description
BigInteger	generateBlindingFactor()	Generate a suitable blind factor for the public key the generator was initialised with.
void	init(CipherParameters param)	Initialise the factor generator

Methods inherited from class java.lang.Object

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

Constructor Details

RSABlindingFactorGenerator

public RSABlindingFactorGenerator()

Method Details

init

public void init(CipherParameters param)

Initialise the factor generator

Parameters:

param - the necessary RSA key parameters.

generateBlindingFactor

public BigInteger generateBlindingFactor()

Generate a suitable blind factor for the public key the generator was initialised with.

Returns:

a random blind factor