org.bouncycastle.jce.spec

Class ECParameterSpec

java.lang.Object

org.bouncycastle.jce.spec.ECParameterSpec

All Implemented Interfaces:

java.security.spec.AlgorithmParameterSpec

Direct Known Subclasses:

ECNamedCurveParameterSpec

public class ECParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec

basic domain parameters for an Elliptic Curve public or private key.

Constructor Summary

Constructors

Constructor and Description
ECParameterSpec(ECCurve curve, ECPoint G, java.math.BigInteger n)
ECParameterSpec(ECCurve curve, ECPoint G, java.math.BigInteger n, java.math.BigInteger h)
ECParameterSpec(ECCurve curve, ECPoint G, java.math.BigInteger n, java.math.BigInteger h, byte[] seed)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
ECCurve	getCurve() return the curve along which the base point lies.
ECPoint	getG() return the base point we are using for these domain parameters.
java.math.BigInteger	getH() return the cofactor H to the order of G.
java.math.BigInteger	getN() return the order N of G
byte[]	getSeed() return the seed used to generate this curve (if available).
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Detail

ECParameterSpec

public ECParameterSpec(ECCurve curve,
                       ECPoint G,
                       java.math.BigInteger n)

ECParameterSpec

public ECParameterSpec(ECCurve curve,
                       ECPoint G,
                       java.math.BigInteger n,
                       java.math.BigInteger h)

ECParameterSpec

public ECParameterSpec(ECCurve curve,
                       ECPoint G,
                       java.math.BigInteger n,
                       java.math.BigInteger h,
                       byte[] seed)

Method Detail

getCurve

public ECCurve getCurve()

return the curve along which the base point lies.

Returns:

the curve

getG

public ECPoint getG()

return the base point we are using for these domain parameters.

Returns:

the base point.

getN

public java.math.BigInteger getN()

return the order N of G

Returns:

the order

getH

public java.math.BigInteger getH()

return the cofactor H to the order of G.

Returns:

the cofactor

getSeed

public byte[] getSeed()

return the seed used to generate this curve (if available).

Returns:

the random seed

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object