org.spongycastle.crypto.params

Class NaccacheSternPrivateKeyParameters

java.lang.Object

org.spongycastle.crypto.params.AsymmetricKeyParameter

org.spongycastle.crypto.params.NaccacheSternKeyParameters

org.spongycastle.crypto.params.NaccacheSternPrivateKeyParameters

All Implemented Interfaces:

CipherParameters

public class NaccacheSternPrivateKeyParameters
extends NaccacheSternKeyParameters

Private key parameters for NaccacheStern cipher. For details on this cipher, please see http://www.gemplus.com/smart/rd/publications/pdf/NS98pkcs.pdf

Constructor Summary

Constructors

Constructor and Description
NaccacheSternPrivateKeyParameters(java.math.BigInteger g, java.math.BigInteger n, int lowerSigmaBound, java.util.Vector smallPrimes, java.math.BigInteger phi_n) Constructs a NaccacheSternPrivateKey

Method Summary

Modifier and Type	Method and Description
java.math.BigInteger	getPhi_n()
java.util.Vector	getSmallPrimes()

Methods inherited from class org.spongycastle.crypto.params.NaccacheSternKeyParameters

getG, getLowerSigmaBound, getModulus

Methods inherited from class org.spongycastle.crypto.params.AsymmetricKeyParameter

isPrivate

Methods inherited from class java.lang.Object

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

Constructor Detail

NaccacheSternPrivateKeyParameters

public NaccacheSternPrivateKeyParameters(java.math.BigInteger g,
                                         java.math.BigInteger n,
                                         int lowerSigmaBound,
                                         java.util.Vector smallPrimes,
                                         java.math.BigInteger phi_n)

Constructs a NaccacheSternPrivateKey

Parameters:

g - the public enryption parameter g

n - the public modulus n = p*q

lowerSigmaBound - the public lower sigma bound up to which data can be encrypted

smallPrimes - the small primes, of which sigma is constructed in the right order

phi_n - the private modulus phi(n) = (p-1)(q-1)

Method Detail

getPhi_n

public java.math.BigInteger getPhi_n()

getSmallPrimes

public java.util.Vector getSmallPrimes()