ECParameterSpec

public class ECParameterSpec
extends Object implements AlgorithmParameterSpec

java.lang.Object
↳	java.security.spec.ECParameterSpec

This immutable class specifies the set of domain parameters used with elliptic curve cryptography (ECC).

See also:

Summary

Public constructors
`ECParameterSpec(EllipticCurve curve, ECPoint g, BigInteger n, int h)` Creates elliptic curve domain parameters based on the specified values.

Public methods
`int`	`getCofactor()` Returns the cofactor.
`EllipticCurve`	`getCurve()` Returns the elliptic curve that this parameter defines.
`ECPoint`	`getGenerator()` Returns the generator which is also known as the base point.
`BigInteger`	`getOrder()` Returns the order of the generator.

From class java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

 public ECParameterSpec (EllipticCurve curve, ECPoint g, BigInteger n, int h)

Creates elliptic curve domain parameters based on the specified values.

Parameters
`curve`	`EllipticCurve`: the elliptic curve which this parameter defines.
`g`	`ECPoint`: the generator which is also known as the base point.
`n`	`BigInteger`: the order of the generator `g`.
`h`	`int`: the cofactor.

Throws
`NullPointerException`	if `curve`, `g`, or `n` is null.
`IllegalArgumentException`	if `n` or `h` is not positive.

 public int getCofactor ()

Returns the cofactor.

Returns
`int`	the cofactor.

 public EllipticCurve getCurve ()

Returns the elliptic curve that this parameter defines.

Returns
`EllipticCurve`	the elliptic curve that this parameter defines.

 public ECPoint getGenerator ()

Returns the generator which is also known as the base point.

Returns
`ECPoint`	the generator which is also known as the base point.

 public BigInteger getOrder ()

Returns the order of the generator.

Returns
`BigInteger`	the order of the generator.