Package com.microej.jce.spec

Class ECPublicKeyNamedCurveSpec

java.lang.Object

com.microej.jce.spec.ECPublicKeyNamedCurveSpec

All Implemented Interfaces:

KeySpec

public class ECPublicKeyNamedCurveSpec
extends Object
implements KeySpec

This class specifies an elliptic curve public key based on the name of the curve used and the affine coordinates of the associated point on the curve.

To generate a key using this spec:

 
 String curveName = "secp256r1";
 BigInteger x = ...
 BigInteger y = ...
 ECPublicKeyNamedCurveSpec keySpec = new ECPublicKeyNamedCurveSpec(curveName, x.toByteArray(), y.toByteArray());
 PublicKey ecPublicKey = KeyFactory.getInstance("EC").generatePublic(keySpec);
 
 

See Also:

KeyFactory

Constructor Summary

Constructors

Constructor	Description
ECPublicKeyNamedCurveSpec(String curveName, byte[] x, byte[] y)	Creates a new ECPublicKeyNamedCurveSpec with the specified parameter values.

Method Summary

Modifier and Type	Method	Description
String	getCurveName()	Returns the elliptic curve name.
byte[]	getX()	Returns the affine x-coordinate of the associated point.
byte[]	getY()	Returns the affine y-coordinate of the associated point.

Methods inherited from class java.lang.Object

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

Constructor Detail

ECPublicKeyNamedCurveSpec

public ECPublicKeyNamedCurveSpec(String curveName,
                                 byte[] x,
                                 byte[] y)

Creates a new ECPublicKeyNamedCurveSpec with the specified parameter values.

Parameters:

curveName - the name of the elliptic curve.

x - the affine x-coordinate of the associated point.

y - the affine y-coordinate of the associated point.

Method Detail

getCurveName

public String getCurveName()

Returns the elliptic curve name.

Returns:

the elliptic curve name.

getX

public byte[] getX()

Returns the affine x-coordinate of the associated point.

Returns:

the affine x-coordinate of the associated point.

getY

public byte[] getY()

Returns the affine y-coordinate of the associated point.

Returns:

the affine y-coordinate of the associated point.