Class ECParameterSpec

java.lang.Object

org.bouncycastle.jce.spec.ECParameterSpec

All Implemented Interfaces:

AlgorithmParameterSpec

Direct Known Subclasses:

ECNamedCurveParameterSpec

public class ECParameterSpec
extends Object
implements AlgorithmParameterSpec

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
boolean	equals(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.
BigInteger	getH()	return the cofactor H to the order of G.
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 Object

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

Constructor Details

ECParameterSpec

public ECParameterSpec(ECCurve curve,
 ECPoint G,
 BigInteger n)

ECParameterSpec

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

ECParameterSpec

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

Method Details

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 BigInteger getN()

return the order N of G

Returns:

the order

getH

public 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(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object