org.bouncycastle.math.ec
Class ECCurve.AbstractFp

java.lang.Object
  org.bouncycastle.math.ec.ECCurve
      org.bouncycastle.math.ec.ECCurve.AbstractFp

Direct Known Subclasses:

Curve25519, ECCurve.Fp, SecP128R1Curve, SecP160K1Curve, SecP160R1Curve, SecP160R2Curve, SecP192K1Curve, SecP192R1Curve, SecP224K1Curve, SecP224R1Curve, SecP256K1Curve, SecP256R1Curve, SecP384R1Curve, SecP521R1Curve, SM2P256V1Curve

Enclosing class:

ECCurve

public abstract static class ECCurve.AbstractFp

extends ECCurve

Nested Class Summary

Nested classes inherited from class org.bouncycastle.math.ec.ECCurve

ECCurve.AbstractF2m, ECCurve.AbstractFp, ECCurve.Config, ECCurve.F2m, ECCurve.Fp

Field Summary

Fields inherited from class org.bouncycastle.math.ec.ECCurve

a, b, cofactor, coord, COORD_AFFINE, COORD_HOMOGENEOUS, COORD_JACOBIAN, COORD_JACOBIAN_CHUDNOVSKY, COORD_JACOBIAN_MODIFIED, COORD_LAMBDA_AFFINE, COORD_LAMBDA_PROJECTIVE, COORD_SKEWED, endomorphism, field, multiplier, order

Constructor Summary

protected

ECCurve.AbstractFp(java.math.BigInteger q)

Method Summary

protected ECPoint	decompressPoint(int yTilde, java.math.BigInteger X1)
java.math.BigInteger	getQ()
boolean	isValidFieldElement(java.math.BigInteger x)
ECFieldElement	randomFieldElement(java.security.SecureRandom r)
ECFieldElement	randomFieldElementMult(java.security.SecureRandom r)

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

checkPoint, checkPoints, checkPoints, cloneCurve, configure, createCacheSafeLookupTable, createDefaultMultiplier, createPoint, createRawPoint, createRawPoint, decodePoint, equals, equals, fromBigInteger, getA, getAffinePointEncodingLength, getAllCoordinateSystems, getB, getCofactor, getCoordinateSystem, getEndomorphism, getField, getFieldElementEncodingLength, getFieldSize, getInfinity, getMultiplier, getOrder, getPreCompInfo, hashCode, importPoint, normalizeAll, normalizeAll, precompute, supportsCoordinateSystem, validatePoint

Methods inherited from class java.lang.Object

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

Constructor Detail

ECCurve.AbstractFp

protected ECCurve.AbstractFp(java.math.BigInteger q)

Method Detail

getQ

public java.math.BigInteger getQ()

isValidFieldElement

public boolean isValidFieldElement(java.math.BigInteger x)

Specified by:

isValidFieldElement in class ECCurve

randomFieldElement

public ECFieldElement randomFieldElement(java.security.SecureRandom r)

Specified by:

randomFieldElement in class ECCurve

randomFieldElementMult

public ECFieldElement randomFieldElementMult(java.security.SecureRandom r)

Specified by:

randomFieldElementMult in class ECCurve

decompressPoint

protected ECPoint decompressPoint(int yTilde,
                                  java.math.BigInteger X1)

Specified by:

decompressPoint in class ECCurve