Package 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/interfaces 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

Constructors

Modifier	Constructor	Description
protected	AbstractFp(BigInteger q)

Method Summary

Modifier and Type	Method	Description
protected ECPoint	decompressPoint(int yTilde, BigInteger X1)
boolean	isValidFieldElement(BigInteger x)
ECFieldElement	randomFieldElement(SecureRandom r)
ECFieldElement	randomFieldElementMult(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 Details

AbstractFp

protected AbstractFp(BigInteger q)

Method Details

isValidFieldElement

public boolean isValidFieldElement(BigInteger x)

Specified by:

isValidFieldElement in class ECCurve

randomFieldElement

public ECFieldElement randomFieldElement(SecureRandom r)

Specified by:

randomFieldElement in class ECCurve

randomFieldElementMult

public ECFieldElement randomFieldElementMult(SecureRandom r)

Specified by:

randomFieldElementMult in class ECCurve

decompressPoint

protected ECPoint decompressPoint(int yTilde,
 BigInteger X1)

Specified by:

decompressPoint in class ECCurve