io.jsonwebtoken.impl.crypto

Class EllipticCurveSigner

java.lang.Object

io.jsonwebtoken.impl.crypto.EllipticCurveProvider

io.jsonwebtoken.impl.crypto.EllipticCurveSigner

All Implemented Interfaces:

Signer

public class EllipticCurveSigner
extends EllipticCurveProvider
implements Signer

Field Summary

Fields

Modifier and Type	Field and Description
protected SignatureAlgorithm	alg
static SecureRandom	DEFAULT_SECURE_RANDOM JJWT's default SecureRandom number generator.
protected Key	key

Constructor Summary

Constructors

Constructor and Description
EllipticCurveSigner(SignatureAlgorithm alg, Key key)

Method Summary

Methods

Modifier and Type	Method and Description
protected Signature	createSignatureInstance()
protected byte[]	doSign(byte[] data)
protected Signature	getSignatureInstance()
protected boolean	isBouncyCastleAvailable()
byte[]	sign(byte[] data)

Methods inherited from class io.jsonwebtoken.impl.crypto.EllipticCurveProvider

generateKeyPair, generateKeyPair, generateKeyPair, generateKeyPair, getSignatureByteArrayLength, transcodeSignatureToConcat, transcodeSignatureToDER

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SECURE_RANDOM

public static final SecureRandom DEFAULT_SECURE_RANDOM

JJWT's default SecureRandom number generator. This RNG is initialized using the JVM default as follows:

 static {
     DEFAULT_SECURE_RANDOM = new SecureRandom();
     DEFAULT_SECURE_RANDOM.nextBytes(new byte[64]);
 }
 

nextBytes is called to force the RNG to initialize itself if not already initialized. The byte array is not used and discarded immediately for garbage collection.

alg

protected final SignatureAlgorithm alg

key

protected final Key key

Constructor Detail

EllipticCurveSigner

public EllipticCurveSigner(SignatureAlgorithm alg,
                   Key key)

Method Detail

sign

public byte[] sign(byte[] data)

Specified by:

sign in interface Signer

doSign

protected byte[] doSign(byte[] data)
                 throws InvalidKeyException,
                        SignatureException,
                        JwtException

Throws:

InvalidKeyException

SignatureException

JwtException

createSignatureInstance

protected Signature createSignatureInstance()

getSignatureInstance

protected Signature getSignatureInstance()
                                  throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

isBouncyCastleAvailable

protected boolean isBouncyCastleAvailable()