Package net.i2p.crypto.eddsa.math.bigint

Class BigIntegerFieldElement

java.lang.Object

net.i2p.crypto.eddsa.math.FieldElement

net.i2p.crypto.eddsa.math.bigint.BigIntegerFieldElement

All Implemented Interfaces:

Serializable

public class BigIntegerFieldElement
extends FieldElement
implements Serializable

A particular element of the field \Z/(2^255-19).

Author:

str4d

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final BigInteger	bi	Variable is package private for encoding.

Fields inherited from class net.i2p.crypto.eddsa.math.FieldElement

f

Constructor Summary

Constructors

Constructor	Description
BigIntegerFieldElement(Field f, BigInteger bi)

Method Summary

Modifier and Type	Method	Description
FieldElement	add(FieldElement val)
FieldElement	addOne()
FieldElement	cmov(FieldElement val, int b)
FieldElement	divide(BigInteger val)
FieldElement	divide(FieldElement val)
boolean	equals(Object obj)
int	hashCode()
FieldElement	invert()
boolean	isNonZero()
FieldElement	mod(FieldElement m)
FieldElement	modPow(FieldElement e, FieldElement m)
FieldElement	multiply(FieldElement val)
FieldElement	negate()
FieldElement	pow(FieldElement e)
FieldElement	pow22523()
FieldElement	square()
FieldElement	squareAndDouble()
FieldElement	subtract(FieldElement val)
FieldElement	subtractOne()
String	toString()

Methods inherited from class net.i2p.crypto.eddsa.math.FieldElement

isNegative, toByteArray

Methods inherited from class java.lang.Object

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

Field Details

bi

final BigInteger bi

Variable is package private for encoding.

Constructor Details

BigIntegerFieldElement

public BigIntegerFieldElement(Field f,
 BigInteger bi)

Method Details

isNonZero

public boolean isNonZero()

Specified by:

isNonZero in class FieldElement

add

public FieldElement add(FieldElement val)

Specified by:

add in class FieldElement

addOne

public FieldElement addOne()

Overrides:

addOne in class FieldElement

subtract

public FieldElement subtract(FieldElement val)

Specified by:

subtract in class FieldElement

subtractOne

public FieldElement subtractOne()

Overrides:

subtractOne in class FieldElement

negate

public FieldElement negate()

Specified by:

negate in class FieldElement

divide

public FieldElement divide(FieldElement val)

Overrides:

divide in class FieldElement

divide

public FieldElement divide(BigInteger val)

multiply

public FieldElement multiply(FieldElement val)

Specified by:

multiply in class FieldElement

square

public FieldElement square()

Specified by:

square in class FieldElement

squareAndDouble

public FieldElement squareAndDouble()

Specified by:

squareAndDouble in class FieldElement

invert

public FieldElement invert()

Specified by:

invert in class FieldElement

mod

public FieldElement mod(FieldElement m)

modPow

public FieldElement modPow(FieldElement e,
 FieldElement m)

pow

public FieldElement pow(FieldElement e)

pow22523

public FieldElement pow22523()

Specified by:

pow22523 in class FieldElement

cmov

public FieldElement cmov(FieldElement val,
 int b)

Specified by:

cmov in class FieldElement

Since:

0.9.36

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object