net.sf.mmm.crypto.asymmetric.sign.ec.bc

Class SignatureFactoryEcBcWithRecoveryId

java.lang.Object

net.sf.mmm.crypto.asymmetric.sign.ec.bc.SignatureFactoryEcBc<SignatureEcBcWithRecoveryId>

net.sf.mmm.crypto.asymmetric.sign.ec.bc.SignatureFactoryEcBcWithRecoveryId

All Implemented Interfaces:

SignatureFactory<SignatureEcBcWithRecoveryId>

public class SignatureFactoryEcBcWithRecoveryId
extends SignatureFactoryEcBc<SignatureEcBcWithRecoveryId>

Implementation of SignatureFactory for SignatureEcBcWithRecoveryId.

Since:

1.0.0

Field Summary

Fields

Modifier and Type	Field and Description
private static byte	DEFAULT_RECOVERY_OFFSET
private byte	recoveryOffset

Fields inherited from class net.sf.mmm.crypto.asymmetric.sign.ec.bc.SignatureFactoryEcBc

curve

Constructor Summary

Constructors

Constructor and Description
SignatureFactoryEcBcWithRecoveryId(CryptoEllipticCurveBc curve) The constructor.
SignatureFactoryEcBcWithRecoveryId(CryptoEllipticCurveBc curve, byte recoveryOffset) The constructor.

Method Summary

Modifier and Type	Method and Description
SignatureEcBcWithRecoveryId	create(BigInteger r, BigInteger s, byte[] message, org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey publicKey)
SignatureEcBcWithRecoveryId	createSignature(byte[] data)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_RECOVERY_OFFSET

private static final byte DEFAULT_RECOVERY_OFFSET

See Also:

Constant Field Values

recoveryOffset

private final byte recoveryOffset

Constructor Detail

SignatureFactoryEcBcWithRecoveryId

public SignatureFactoryEcBcWithRecoveryId(CryptoEllipticCurveBc curve)

The constructor.

Parameters:

curve - the elliptic curve.

SignatureFactoryEcBcWithRecoveryId

public SignatureFactoryEcBcWithRecoveryId(CryptoEllipticCurveBc curve,
                                          byte recoveryOffset)

The constructor.

Parameters:

curve - the elliptic curve.

recoveryOffset - the recovery offset.

Method Detail

createSignature

public SignatureEcBcWithRecoveryId createSignature(byte[] data)

create

public SignatureEcBcWithRecoveryId create(BigInteger r,
                                          BigInteger s,
                                          byte[] message,
                                          org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey publicKey)

Specified by:

create in class SignatureFactoryEcBc<SignatureEcBcWithRecoveryId>

Parameters:

r - the value r.

s - the value s.

message - the signed message (hash).

publicKey - the BCECPublicKey that was used to sign the message.

Returns:

the signature.