Package ch.bitagent.bitcoin.lib.ecc

Class FieldElement

java.lang.Object

ch.bitagent.bitcoin.lib.ecc.FieldElement

All Implemented Interfaces:

PointOperators

Direct Known Subclasses:

S256Field

public class FieldElement
extends Object
implements PointOperators

A finite field with point operators

Constructor Summary

Constructors

Constructor	Description
FieldElement(int num, int prime)	Constructor for FieldElement.
FieldElement(Int num, Int prime)	Constructor for FieldElement.

Method Summary

Modifier and Type	Method	Description
FieldElement	add(PointOperators otherPoint)	add.
FieldElement	div(PointOperators otherPoint)	div.
boolean	eq(PointOperators otherPoint)	eq.
Int	getNum()	Getter for the field num.
Int	getPrime()	Getter for the field prime.
FieldElement	mod(Int divisor)	mod.
FieldElement	mul(int coefficient)	mul.
FieldElement	mul(PointOperators otherPoint)	mul.
boolean	ne(PointOperators otherPoint)	ne.
FieldElement	pow(Int exponent)	pow.
FieldElement	powMod(Int exponent, Int divisor)	powMod.
FieldElement	sub(PointOperators otherPoint)	sub.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

FieldElement

public FieldElement(Int num,
                    Int prime)

Constructor for FieldElement.

Parameters:

num - a Int object

prime - a Int object

FieldElement

public FieldElement(int num,
                    int prime)

Constructor for FieldElement.

Parameters:

num - a int

prime - a int

Method Detail

eq

public boolean eq(PointOperators otherPoint)

eq.

Specified by:

eq in interface PointOperators

Parameters:

otherPoint - a PointOperators object

Returns:

a boolean

ne

public boolean ne(PointOperators otherPoint)

ne.

Specified by:

ne in interface PointOperators

Parameters:

otherPoint - a PointOperators object

Returns:

a boolean

add

public FieldElement add(PointOperators otherPoint)

add.

Specified by:

add in interface PointOperators

Parameters:

otherPoint - a PointOperators object

Returns:

a PointOperators object

sub

public FieldElement sub(PointOperators otherPoint)

sub.

Specified by:

sub in interface PointOperators

Parameters:

otherPoint - a PointOperators object

Returns:

a PointOperators object

mul

public FieldElement mul(PointOperators otherPoint)

mul.

Specified by:

mul in interface PointOperators

Parameters:

otherPoint - a PointOperators object

Returns:

a PointOperators object

mul

public FieldElement mul(int coefficient)

mul.

Specified by:

mul in interface PointOperators

Parameters:

coefficient - a int

Returns:

a PointOperators object

pow

public FieldElement pow(Int exponent)

pow.

Specified by:

pow in interface PointOperators

Parameters:

exponent - a Int object

Returns:

a PointOperators object

div

public FieldElement div(PointOperators otherPoint)

div.

Specified by:

div in interface PointOperators

Parameters:

otherPoint - a PointOperators object

Returns:

a PointOperators object

mod

public FieldElement mod(Int divisor)

mod.

Specified by:

mod in interface PointOperators

Parameters:

divisor - a Int object

Returns:

a PointOperators object

powMod

public FieldElement powMod(Int exponent,
                           Int divisor)

powMod.

Specified by:

powMod in interface PointOperators

Parameters:

exponent - a Int object

divisor - a Int object

Returns:

a PointOperators object

toString

public String toString()

Overrides:

toString in class Object

getNum

public Int getNum()

Getter for the field num.

Returns:

a Int object

getPrime

public Int getPrime()

Getter for the field prime.

Returns:

a Int object