Class MD2Digest

  • All Implemented Interfaces:
    Digest

    public class MD2Digest
    extends java.lang.Object
    implements Digest
    implementation of MD2 as outlined in RFC1319 by B.Kaliski from RSA Laboratories April 1992
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private byte[] C  
      private int COff  
      private static int DIGEST_LENGTH  
      private byte[] M  
      private int mOff  
      private static byte[] S  
      private byte[] X  
      private int xOff  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int doFinal​(byte[] out, int outOff)
      close the digest, producing the final digest value.
      java.lang.String getAlgorithmName()
      return the algorithm name
      int getDigestSize()
      return the size, in bytes, of the digest produced by this message digest.
      protected void processBlock​(byte[] m)  
      protected void processCheckSum​(byte[] m)  
      void reset()
      reset the digest back to it's initial state.
      void update​(byte in)
      update the message digest with a single byte.
      void update​(byte[] in, int inOff, int len)
      update the message digest with a block of bytes.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • X

        private byte[] X
      • xOff

        private int xOff
      • M

        private byte[] M
      • mOff

        private int mOff
      • C

        private byte[] C
      • COff

        private int COff
      • S

        private static final byte[] S
    • Constructor Detail

      • MD2Digest

        public MD2Digest()
      • MD2Digest

        public MD2Digest​(MD2Digest t)
    • Method Detail

      • getAlgorithmName

        public java.lang.String getAlgorithmName()
        return the algorithm name
        Specified by:
        getAlgorithmName in interface Digest
        Returns:
        the algorithm name
      • getDigestSize

        public int getDigestSize()
        return the size, in bytes, of the digest produced by this message digest.
        Specified by:
        getDigestSize in interface Digest
        Returns:
        the size, in bytes, of the digest produced by this message digest.
      • doFinal

        public int doFinal​(byte[] out,
                           int outOff)
        close the digest, producing the final digest value. The doFinal call leaves the digest reset.
        Specified by:
        doFinal in interface Digest
        Parameters:
        out - the array the digest is to be copied into.
        outOff - the offset into the out array the digest is to start at.
      • reset

        public void reset()
        reset the digest back to it's initial state.
        Specified by:
        reset in interface Digest
      • update

        public void update​(byte in)
        update the message digest with a single byte.
        Specified by:
        update in interface Digest
        Parameters:
        in - the input byte to be entered.
      • update

        public void update​(byte[] in,
                           int inOff,
                           int len)
        update the message digest with a block of bytes.
        Specified by:
        update in interface Digest
        Parameters:
        in - the byte array containing the data.
        inOff - the offset into the byte array where the data starts.
        len - the length of the data.
      • processCheckSum

        protected void processCheckSum​(byte[] m)
      • processBlock

        protected void processBlock​(byte[] m)