part7
Class Curve

java.lang.Object
  part7.Curve

public class Curve

extends java.lang.Object

A class used to represent an elliptic curve of the form y²=x³+ax+b over Z_p where p is a prime greater than 3.
Note that objects of type Curve are immutable.

Constructor Summary

Curve(java.math.BigInteger p, java.math.BigInteger a, java.math.BigInteger b)
A constructor to create a canonical representation of an elliptic curve given a prime p and any values a & b.

Method Summary

boolean	equal(Curve c) A method to determine if this curve is equal to the curve c.
java.math.BigInteger	getA()
java.math.BigInteger	getB()
java.math.BigInteger	getP()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Curve

public Curve(java.math.BigInteger p,
             java.math.BigInteger a,
             java.math.BigInteger b)
      throws java.lang.Exception

A constructor to create a canonical representation of an elliptic curve given a prime p and any values a & b.

Throws:

java.lang.Exception

Method Detail

toString

public java.lang.String toString()

getP

public java.math.BigInteger getP()
                          throws java.lang.Exception

Throws:

java.lang.Exception

getA

public java.math.BigInteger getA()
                          throws java.lang.Exception

Throws:

java.lang.Exception

getB

public java.math.BigInteger getB()
                          throws java.lang.Exception

Throws:

java.lang.Exception

equal

public boolean equal(Curve c)
              throws java.lang.Exception

A method to determine if this curve is equal to the curve c.

Throws:

java.lang.Exception