org.gudy.bouncycastle.math.ec
Class ECCurve.Fp

java.lang.Object
  org.gudy.bouncycastle.math.ec.ECCurve
      org.gudy.bouncycastle.math.ec.ECCurve.Fp

Enclosing class:

ECCurve

public static class ECCurve.Fp
extends ECCurve

Elliptic curve over Fp

Nested Class Summary

Nested classes/interfaces inherited from class org.gudy.bouncycastle.math.ec.ECCurve

ECCurve.F2m, ECCurve.Fp

Constructor Summary

ECCurve.Fp(BigInteger q, BigInteger a, BigInteger b)

Method Summary

ECPoint	createPoint(BigInteger x, BigInteger y, boolean withCompression)
ECPoint	decodePoint(byte[] encoded) Decode a point on this curve from its ASN.1 encoding.
boolean	equals(Object anObject)
ECFieldElement	fromBigInteger(BigInteger x)
int	getFieldSize()
ECPoint	getInfinity()
BigInteger	getQ()
int	hashCode()

Methods inherited from class org.gudy.bouncycastle.math.ec.ECCurve

getA, getB

Methods inherited from class java.lang.Object

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

Constructor Detail

ECCurve.Fp

public ECCurve.Fp(BigInteger q,
                  BigInteger a,
                  BigInteger b)

Method Detail

getQ

public BigInteger getQ()

getFieldSize

public int getFieldSize()

Specified by:

getFieldSize in class ECCurve

fromBigInteger

public ECFieldElement fromBigInteger(BigInteger x)

Specified by:

fromBigInteger in class ECCurve

createPoint

public ECPoint createPoint(BigInteger x,
                           BigInteger y,
                           boolean withCompression)

Specified by:

createPoint in class ECCurve

decodePoint

public ECPoint decodePoint(byte[] encoded)

Decode a point on this curve from its ASN.1 encoding. The different encodings are taken account of, including point compression for Fp (X9.62 s 4.2.1 pg 17).

Specified by:

decodePoint in class ECCurve

Returns:

The decoded point.

getInfinity

public ECPoint getInfinity()

Specified by:

getInfinity in class ECCurve

equals

public boolean equals(Object anObject)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object