iaik.security.ecc.ecdsa
Class SHA224withECDSAPlainSignature

java.lang.Object
  java.security.SignatureSpi
      java.security.Signature
          iaik.security.ecc.ecdsa.ECDSAPlainSignature
              iaik.security.ecc.ecdsa.SHA224withECDSAPlainSignature

public class SHA224withECDSAPlainSignature

extends ECDSAPlainSignature

Signature engine for the ECDSA signature algorithm using SHA224 as hash algorithm as defined by the German BSI Technical Guideline TR-03111. The signature value is encoded as (r || s) and not wrapped into a SEQUENCE as done by X9.62. If the hash length is larger than the domain parameter length the hash is not truncated like in X9.62; rather it is reduced modulo n, the order of the base point G..

Field Summary

Fields inherited from class iaik.security.ecc.ecdsa.ECDSAPlainSignature

md_, privateKey_, publicKey_, secureRandom_

Fields inherited from class java.security.Signature

SIGN, state, UNINITIALIZED, VERIFY

Fields inherited from class java.security.SignatureSpi

appRandom

Constructor Summary

SHA224withECDSAPlainSignature()
Default constructor.

Methods inherited from class iaik.security.ecc.ecdsa.ECDSAPlainSignature

engineGetParameter, engineInitSign, engineInitSign, engineInitVerify, engineSetParameter, engineSetParameter, engineSign, engineUpdate, engineUpdate, engineVerify

Methods inherited from class java.security.Signature

clone, getAlgorithm, getInstance, getInstance, getInstance, getParameter, getParameters, getProvider, initSign, initSign, initVerify, initVerify, setParameter, setParameter, sign, sign, toString, update, update, update, verify, verify

Methods inherited from class java.security.SignatureSpi

engineGetParameters, engineSign, engineVerify

Methods inherited from class java.lang.Object

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

Constructor Detail

SHA224withECDSAPlainSignature

public SHA224withECDSAPlainSignature()
                              throws java.security.NoSuchAlgorithmException

Default constructor. Applications should not use this constructor, but the Signature.getInstance("SHA224withECDSAPlain") method.

Throws:

java.security.NoSuchAlgorithmException - if the SHA224 MessageDigest algorithm is not available