com.ibm.crypto.fips.provider

Class P256PrimeField

java.lang.Object

java.security.spec.ECFieldFp

com.ibm.crypto.fips.provider.P256PrimeField

All Implemented Interfaces:

PrimeField, java.security.spec.ECField

public class P256PrimeField
extends java.security.spec.ECFieldFp
implements PrimeField

Constructor Summary

Constructors

Constructor and Description
P256PrimeField()

Method Summary

Methods

Modifier and Type	Method and Description
int[]	add(java.lang.Object x, java.lang.Object y)
int[]	bigIntegerTointernal(java.math.BigInteger y)
int[]	divide(java.lang.Object x, java.lang.Object y) http://www.eng.auburn.edu/users/hamilton/security/pubs/Software_Implementation_of_the_NIST_Elliptic.pdf Algorithm 12, modified for division (A = b)
boolean	greater(java.lang.Object x, java.lang.Object y)
EllipticPoint	internalMontgomeryLadderMultiply(java.lang.Object k, EllipticPoint generator)
int[]	internalOne()
java.math.BigInteger	internalToBigInteger(java.lang.Object y)
int[]	internalZero()
boolean	isInternalEqual(java.lang.Object p, java.lang.Object q)
boolean	isInternalOne(java.lang.Object q)
boolean	isInternalZero(java.lang.Object q)
protected int[]	mod(int[] x)
int[]	multiply(java.lang.Object x, java.lang.Object y) Algorithm 2.10
int[]	shiftLeft(java.lang.Object x, int l)
int[]	shiftRight(java.lang.Object x, int r)
int[]	subtract(java.lang.Object x, java.lang.Object y)

Methods inherited from class java.security.spec.ECFieldFp

equals, getFieldSize, getP, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.security.spec.ECField

getFieldSize

Constructor Detail

P256PrimeField

public P256PrimeField()

Method Detail

mod

protected int[] mod(int[] x)

multiply

public int[] multiply(java.lang.Object x,
             java.lang.Object y)

Algorithm 2.10

Specified by:

multiply in interface PrimeField

divide

public int[] divide(java.lang.Object x,
           java.lang.Object y)

http://www.eng.auburn.edu/users/hamilton/security/pubs/Software_Implementation_of_the_NIST_Elliptic.pdf Algorithm 12, modified for division (A = b)

Specified by:

divide in interface PrimeField

add

public int[] add(java.lang.Object x,
        java.lang.Object y)

Specified by:

add in interface PrimeField

subtract

public int[] subtract(java.lang.Object x,
             java.lang.Object y)

Specified by:

subtract in interface PrimeField

shiftLeft

public int[] shiftLeft(java.lang.Object x,
              int l)

Specified by:

shiftLeft in interface PrimeField

shiftRight

public int[] shiftRight(java.lang.Object x,
               int r)

Specified by:

shiftRight in interface PrimeField

isInternalZero

public boolean isInternalZero(java.lang.Object q)

Specified by:

isInternalZero in interface PrimeField

isInternalOne

public boolean isInternalOne(java.lang.Object q)

Specified by:

isInternalOne in interface PrimeField

isInternalEqual

public boolean isInternalEqual(java.lang.Object p,
                      java.lang.Object q)

Specified by:

isInternalEqual in interface PrimeField

internalZero

public int[] internalZero()

Specified by:

internalZero in interface PrimeField

internalOne

public int[] internalOne()

Specified by:

internalOne in interface PrimeField

greater

public boolean greater(java.lang.Object x,
              java.lang.Object y)

internalToBigInteger

public java.math.BigInteger internalToBigInteger(java.lang.Object y)

Specified by:

internalToBigInteger in interface PrimeField

bigIntegerTointernal

public int[] bigIntegerTointernal(java.math.BigInteger y)

Specified by:

bigIntegerTointernal in interface PrimeField

internalMontgomeryLadderMultiply

public EllipticPoint internalMontgomeryLadderMultiply(java.lang.Object k,
                                             EllipticPoint generator)

Specified by:

internalMontgomeryLadderMultiply in interface PrimeField