ECFieldFp JDK 1.6)

Description

public class ECFieldFp

This immutable class defines an elliptic curve (EC) prime finite field.

See also: ECField

Constructors

public ECFieldFp (BigInteger p)

Creates an elliptic curve prime finite field with the specified prime p.

Creates an elliptic curve prime finite field
with the specified prime p.
Parameters:
- p - the prime.
Throws:
- NullPointerException - if p is null.
- IllegalArgumentException - if p is not positive.

Methods

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public boolean equals (Object obj)

Compares this prime finite field for equality with the specified object.

Compares this prime finite field for equality with the
specified object.
Returns: true if obj is an instance of ECFieldFp and the prime value match, false otherwise.
Parameters:
- obj - the object to be compared.

public int getFieldSize () [Specified in ECField]

Returns the field size in bits which is size of prime p for this prime finite field.

public BigInteger getP ()

Returns the prime p of this prime finite field.

Returns the prime p of this prime finite field.
Returns: the prime.

public int hashCode ()

Returns a hash code value for this prime finite field.