org.bouncycastle.math.ec

Class ECCurve.AbstractF2m

java.lang.Object

org.bouncycastle.math.ec.ECCurve

org.bouncycastle.math.ec.ECCurve.AbstractF2m

Direct Known Subclasses:

ECCurve.F2m, SecT113R1Curve, SecT113R2Curve, SecT131R1Curve, SecT131R2Curve, SecT163K1Curve, SecT163R1Curve, SecT163R2Curve, SecT193R1Curve, SecT193R2Curve, SecT233K1Curve, SecT233R1Curve, SecT239K1Curve, SecT283K1Curve, SecT283R1Curve, SecT409K1Curve, SecT409R1Curve, SecT571K1Curve, SecT571R1Curve

Enclosing class:

ECCurve

public abstract static class ECCurve.AbstractF2m
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 and Description
protected	AbstractF2m(int m, int k1, int k2, int k3)

Method Summary

Modifier and Type	Method and Description
ECPoint	createPoint(java.math.BigInteger x, java.math.BigInteger y, boolean withCompression)
static java.math.BigInteger	inverse(int m, int[] ks, java.math.BigInteger x)
boolean	isKoblitz() Returns true if this is a Koblitz curve (ABC curve).

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractF2m

protected AbstractF2m(int m,
                      int k1,
                      int k2,
                      int k3)

Method Detail

inverse

public static java.math.BigInteger inverse(int m,
                                           int[] ks,
                                           java.math.BigInteger x)

createPoint

public ECPoint createPoint(java.math.BigInteger x,
                           java.math.BigInteger y,
                           boolean withCompression)

Overrides:

createPoint in class ECCurve

isKoblitz

public boolean isKoblitz()

Returns true if this is a Koblitz curve (ABC curve).

Returns:

true if this is a Koblitz curve (ABC curve), false otherwise