Package org.bouncycastle.crypto.params

Class NaccacheSternPrivateKeyParameters

java.lang.Object

org.bouncycastle.crypto.params.AsymmetricKeyParameter

org.bouncycastle.crypto.params.NaccacheSternKeyParameters

org.bouncycastle.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 https://www.gemplus.com/smart/rd/publications/pdf/NS98pkcs.pdf

Constructor Summary

Constructors

Constructor	Description
NaccacheSternPrivateKeyParameters(BigInteger g, BigInteger n, int lowerSigmaBound, Vector smallPrimes, BigInteger phi_n)	Constructs a NaccacheSternPrivateKey

Method Summary

Modifier and Type	Method	Description
BigInteger	getPhi_n()
Vector	getSmallPrimes()

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

getG, getLowerSigmaBound, getModulus

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

isPrivate

Methods inherited from class java.lang.Object

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

Constructor Details

NaccacheSternPrivateKeyParameters

public NaccacheSternPrivateKeyParameters(BigInteger g,
 BigInteger n,
 int lowerSigmaBound,
 Vector smallPrimes,
 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 Details

getPhi_n

public BigInteger getPhi_n()

getSmallPrimes

public Vector getSmallPrimes()