Class MD2Digest

java.lang.Object
org.gudy.bouncycastle.crypto.digests.MD2Digest
All Implemented Interfaces:
Digest
public class MD2Digest extends 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 final int
    DIGEST_LENGTH
     
    private byte[]
    M
     
    private int
    mOff
     
    private static final byte[]
    S
     
    private byte[]
    X
     
    private int
    xOff
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    MD2Digest()
     
    MD2Digest(MD2Digest t)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    doFinal(byte[] out, int outOff)
    close the digest, producing the final digest value.
    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 Object

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

  • Field Details

    • DIGEST_LENGTH

      private static final int DIGEST_LENGTH
      See Also:

    • 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 Details

    • MD2Digest

      public MD2Digest()

    • MD2Digest

      public MD2Digest(MD2Digest t)

  • Method Details

    • getAlgorithmName

      public 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)