Interfaces
Classes
Exceptions
- InvalidKeySpecException
- InvalidParameterSpecException

Summary: Ctors | Methods | Inherited Methods | [Expand All]

Added in API level 1

public class

EllipticCurve

extends Object

java.lang.Object
↳	java.security.spec.EllipticCurve

Class Overview

An Elliptic Curve with its necessary values.

Summary

Public Constructors
	EllipticCurve(ECField field, BigInteger a, BigInteger b, byte[] seed) Creates a new `EllipticCurve` with the specified field, coefficients and seed.
	EllipticCurve(ECField field, BigInteger a, BigInteger b) Creates a new `EllipticCurve` with the specified field and coefficients.

Public Methods
boolean	equals(Object other) Returns whether the specified object equals to this elliptic curve.
BigInteger	getA() Returns the coefficient `a` of this elliptic curve.
BigInteger	getB() Returns the coefficient `b` of this elliptic curve.
ECField	getField() Returns the finite field of this elliptic curve.
byte[]	getSeed() Returns a copy of the seed that was used to generate this elliptic curve.
int	hashCode() Returns the hashcode of this elliptic curve.

[Expand]

Inherited Methods

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Constructors

public EllipticCurve (ECField field, BigInteger a, BigInteger b, byte[] seed)

Added in API level 1

Creates a new EllipticCurve with the specified field, coefficients and seed.

Parameters

field	the finite field of this elliptic curve.
a	the coefficient `a`.
b	the coefficient `b`.
seed	the seed used for the generation of the curve.

Throws

IllegalArgumentException	if the specified coefficients are not in the specified field.

public EllipticCurve (ECField field, BigInteger a, BigInteger b)

Added in API level 1

Creates a new EllipticCurve with the specified field and coefficients.

Parameters

field	the finite field of this elliptic curve.
a	the coefficient `a`.
b	the coefficient `b`.

Throws

IllegalArgumentException	if the specified coefficients are not in the specified field.

Public Methods

public boolean equals (Object other)

Added in API level 1

Returns whether the specified object equals to this elliptic curve.

Parameters

other	the object to compare.

Returns

true if the specified object is equal to this elliptic curve, otherwise false.

public BigInteger getA ()

Added in API level 1

Returns the coefficient a of this elliptic curve.

Returns

the coefficient a of this elliptic curve.

public BigInteger getB ()

Added in API level 1

Returns the coefficient b of this elliptic curve.

Returns

the coefficient b of this elliptic curve.

public ECField getField ()

Added in API level 1

Returns the finite field of this elliptic curve.

Returns

the finite field of this elliptic curve.

public byte[] getSeed ()

Added in API level 1

Returns a copy of the seed that was used to generate this elliptic curve.

Returns

a copy of the seed that was used to generate this elliptic curve, or null if none specified.

public int hashCode ()

Added in API level 1

Returns the hashcode of this elliptic curve.

Returns

the hashcode of this elliptic curve.

Results

Interfaces

Classes

Exceptions

EllipticCurve

Class Overview

Summary

Public Constructors

public EllipticCurve (ECField field, BigInteger a, BigInteger b, byte[] seed)

Parameters

Throws

public EllipticCurve (ECField field, BigInteger a, BigInteger b)

Parameters

Throws

Public Methods

public boolean equals (Object other)

Parameters

Returns

public BigInteger getA ()

Returns

public BigInteger getB ()

Returns

public ECField getField ()

Returns

public byte[] getSeed ()

Returns

public int hashCode ()

Returns