Package org.bouncycastle.math.ec

Class ECFieldElement

java.lang.Object

org.bouncycastle.math.ec.ECFieldElement

All Implemented Interfaces:

ECConstants

Direct Known Subclasses:

ECFieldElement.AbstractF2m, ECFieldElement.AbstractFp

public abstract class ECFieldElement
extends java.lang.Object
implements ECConstants

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ECFieldElement.AbstractF2m
static class	ECFieldElement.AbstractFp
static class	ECFieldElement.F2m	Class representing the Elements of the finite field F 2 m in polynomial basis (PB) representation.
static class	ECFieldElement.Fp

Field Summary

Fields inherited from interface org.bouncycastle.math.ec.ECConstants

EIGHT, FOUR, ONE, THREE, TWO, ZERO

Constructor Summary

Constructors

Constructor	Description
ECFieldElement()

Method Summary

Modifier and Type	Method	Description
abstract ECFieldElement	add(ECFieldElement b)
abstract ECFieldElement	addOne()
int	bitLength()
abstract ECFieldElement	divide(ECFieldElement b)
void	encodeTo(byte[] buf, int off)
byte[]	getEncoded()
int	getEncodedLength()
abstract java.lang.String	getFieldName()
abstract int	getFieldSize()
abstract ECFieldElement	invert()
boolean	isOne()
boolean	isZero()
abstract ECFieldElement	multiply(ECFieldElement b)
ECFieldElement	multiplyMinusProduct(ECFieldElement b, ECFieldElement x, ECFieldElement y)
ECFieldElement	multiplyPlusProduct(ECFieldElement b, ECFieldElement x, ECFieldElement y)
abstract ECFieldElement	negate()
abstract ECFieldElement	sqrt()
abstract ECFieldElement	square()
ECFieldElement	squareMinusProduct(ECFieldElement x, ECFieldElement y)
ECFieldElement	squarePlusProduct(ECFieldElement x, ECFieldElement y)
ECFieldElement	squarePow(int pow)
abstract ECFieldElement	subtract(ECFieldElement b)
boolean	testBitZero()
abstract java.math.BigInteger	toBigInteger()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ECFieldElement

public ECFieldElement()

Method Detail

toBigInteger

public abstract java.math.BigInteger toBigInteger()

getFieldName

public abstract java.lang.String getFieldName()

getFieldSize

public abstract int getFieldSize()

add

public abstract ECFieldElement add(ECFieldElement b)

addOne

public abstract ECFieldElement addOne()

subtract

public abstract ECFieldElement subtract(ECFieldElement b)

multiply

public abstract ECFieldElement multiply(ECFieldElement b)

divide

public abstract ECFieldElement divide(ECFieldElement b)

negate

public abstract ECFieldElement negate()

square

public abstract ECFieldElement square()

invert

public abstract ECFieldElement invert()

sqrt

public abstract ECFieldElement sqrt()

bitLength

public int bitLength()

isOne

public boolean isOne()

isZero

public boolean isZero()

multiplyMinusProduct

public ECFieldElement multiplyMinusProduct(ECFieldElement b,
                                           ECFieldElement x,
                                           ECFieldElement y)

multiplyPlusProduct

public ECFieldElement multiplyPlusProduct(ECFieldElement b,
                                          ECFieldElement x,
                                          ECFieldElement y)

squareMinusProduct

public ECFieldElement squareMinusProduct(ECFieldElement x,
                                         ECFieldElement y)

squarePlusProduct

public ECFieldElement squarePlusProduct(ECFieldElement x,
                                        ECFieldElement y)

squarePow

public ECFieldElement squarePow(int pow)

testBitZero

public boolean testBitZero()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getEncoded

public byte[] getEncoded()

getEncodedLength

public int getEncodedLength()

encodeTo

public void encodeTo(byte[] buf,
                     int off)