com.motorola.iden.crypto.spec
Class DHParameterSpec

java.lang.Object
  |
  +--com.motorola.iden.crypto.spec.DHParameterSpec

All Implemented Interfaces:

AlgorithmParameterSpec

public class DHParameterSpec

extends java.lang.Object

implements AlgorithmParameterSpec

This class specifies the elliptic curves used to generate elliptic curve key-pairs.

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See Also:

[AlgorithmParameterSpec]

Constructor Summary

DHParameterSpec(byte[] p1, byte[] g1, byte[] q1)
Constructs a parameter set for Diffie-Hellman, using a prime modulus p, a base generator g and q which is a prive factor of p-1 such that p = jq+1 and q>2^(m-1). m is the bit length of q.

Method Summary

byte[]	getG() Returns the base generator g.
byte[]	getP() Returns the prime modulus p.
byte[]	getQ() Returns the prime factor q.

Methods inherited from class java.lang.Object

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

Constructor Detail

DHParameterSpec

public DHParameterSpec(byte[] p1,
                       byte[] g1,
                       byte[] q1)

Constructs a parameter set for Diffie-Hellman, using a prime modulus p, a base generator g and q which is a prive factor of p-1 such that p = jq+1 and q>2^(m-1). m is the bit length of q. See ANSI X9.42

Parameters:

p1 - the prime modulus

g1 - the base generator

q1 - the prime factor

Method Detail

getP

public byte[] getP()

Returns the prime modulus p.

Returns:

the prime modulus p

getQ

public byte[] getQ()

Returns the prime factor q.

Returns:

the prime factor q

getG

public byte[] getG()

Returns the base generator g.

Returns:

the base generator g