iaik.me.security.rsa
Class RSASignature

java.lang.Object
  |
  +--iaik.me.security.Signature
        |
        +--iaik.me.security.rsa.RSASignature

public class RSASignature

extends Signature

Fields inherited from class iaik.me.security.Signature

md, random

Constructor Summary

RSASignature()

Method Summary

void	initSign(PrivateKey privateKey, SecureRandom random) Inits the RSASignature object for signing.
void	initVerify(PublicKey publicKey) Inits the RSASignature object for verifying a signature.
byte[]	sign() Creates an RSA signature.
boolean	verify(byte[] signature) Verifies a given signature and returns true if the signature can be verified.

Methods inherited from class iaik.me.security.Signature

getAlgorithm, getInstance, register, update, update

Methods inherited from class java.lang.Object

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

Constructor Detail

RSASignature

public RSASignature()
             throws CryptoException

Method Detail

initSign

public void initSign(PrivateKey privateKey,
                     SecureRandom random)
              throws CryptoException

Inits the RSASignature object for signing. Note: the

Overrides:

initSign in class Signature

Parameters:

privateKey - for signature

securerandomobject - for RNG

Throws:

CryptoException - if algorithm is not available

initVerify

public void initVerify(PublicKey publicKey)
                throws CryptoException

Inits the RSASignature object for verifying a signature.

Overrides:

initVerify in class Signature

Parameters:

publicKey -

Throws:

CryptoException -

verify

public boolean verify(byte[] signature)
               throws CryptoException

Verifies a given signature and returns true if the signature can be verified.

Overrides:

verify in class Signature

Parameters:

signature - as bytearray

Returns:

true if the signature is correct

Throws:

CryptoException -

sign

public byte[] sign()
            throws CryptoException

Creates an RSA signature.

Overrides:

sign in class Signature

Returns:

signature as bytearry

Throws:

CryptoException -