Package org.kapott.cryptalgs

Class ISO9796p2

  • public class ISO9796p2
extends java.security.SignatureSpi

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.security.MessageDigest dig  
      private SignatureParamSpec param  
      private java.security.PrivateKey privKey  
      private java.security.interfaces.RSAPublicKey pubKey  

      • Fields inherited from class java.security.SignatureSpi

        appRandom

    • Constructor Summary

      Constructors 
      Constructor Description
      ISO9796p2()  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      private static java.math.BigInteger adjustJ​(java.math.BigInteger J, java.math.BigInteger modulus)  
      protected java.lang.Object engineGetParameter​(java.lang.String parameter)
      Deprecated.
      protected void engineInitSign​(java.security.PrivateKey privateKey)  
      protected void engineInitVerify​(java.security.PublicKey publicKey)  
      protected void engineSetParameter​(java.lang.String param1, java.lang.Object value)
      Deprecated.
      protected void engineSetParameter​(java.security.spec.AlgorithmParameterSpec param1)  
      protected byte[] engineSign()  
      protected int engineSign​(byte[] output, int offset, int len)  
      protected void engineUpdate​(byte b)  
      protected void engineUpdate​(byte[] b, int offset, int length)  
      protected boolean engineVerify​(byte[] sig)  
      private static java.math.BigInteger getJfromSig​(java.math.BigInteger sig, java.math.BigInteger exp, java.math.BigInteger mod)  
      protected java.util.logging.Logger getLogger()  
      private static byte[] getSigFromISig​(java.math.BigInteger iSig, java.math.BigInteger modulus)  

      • Methods inherited from class java.security.SignatureSpi

        clone, engineGetParameters, engineInitSign, engineUpdate, engineVerify

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • pubKey

        private java.security.interfaces.RSAPublicKey pubKey

      • privKey

        private java.security.PrivateKey privKey

      • dig

        private java.security.MessageDigest dig

    • Constructor Detail

      • ISO9796p2

        public ISO9796p2()

    • Method Detail

      • getLogger

        protected java.util.logging.Logger getLogger()

      • engineGetParameter

        @Deprecated
protected java.lang.Object engineGetParameter​(java.lang.String parameter)
        Deprecated.
        Specified by:
        engineGetParameter in class java.security.SignatureSpi

      • engineInitSign

        protected void engineInitSign​(java.security.PrivateKey privateKey)
        Specified by:
        engineInitSign in class java.security.SignatureSpi

      • engineInitVerify

        protected void engineInitVerify​(java.security.PublicKey publicKey)
        Specified by:
        engineInitVerify in class java.security.SignatureSpi

      • engineSetParameter

        @Deprecated
protected void engineSetParameter​(java.lang.String param1,
                                  java.lang.Object value)
        Deprecated.
        Specified by:
        engineSetParameter in class java.security.SignatureSpi

      • engineSetParameter

        protected void engineSetParameter​(java.security.spec.AlgorithmParameterSpec param1)
                           throws java.security.InvalidAlgorithmParameterException
        Overrides:
        engineSetParameter in class java.security.SignatureSpi
        Throws:
        java.security.InvalidAlgorithmParameterException

      • engineUpdate

        protected void engineUpdate​(byte b)
        Specified by:
        engineUpdate in class java.security.SignatureSpi

      • engineUpdate

        protected void engineUpdate​(byte[] b,
                            int offset,
                            int length)
        Specified by:
        engineUpdate in class java.security.SignatureSpi

      • engineSign

        protected int engineSign​(byte[] output,
                         int offset,
                         int len)
                  throws java.security.SignatureException
        Overrides:
        engineSign in class java.security.SignatureSpi
        Throws:
        java.security.SignatureException

      • engineSign

        protected byte[] engineSign()
        Specified by:
        engineSign in class java.security.SignatureSpi

      • getSigFromISig

        private static byte[] getSigFromISig​(java.math.BigInteger iSig,
                                     java.math.BigInteger modulus)

      • engineVerify

        protected boolean engineVerify​(byte[] sig)
        Specified by:
        engineVerify in class java.security.SignatureSpi

      • getJfromSig

        private static java.math.BigInteger getJfromSig​(java.math.BigInteger sig,
                                                java.math.BigInteger exp,
                                                java.math.BigInteger mod)

      • adjustJ

        private static java.math.BigInteger adjustJ​(java.math.BigInteger J,
                                            java.math.BigInteger modulus)