Package io.anyline.nfc.bouncycastle.crypto.digests

Class MD2Digest

  • All Implemented Interfaces:
    io.anyline.nfc.bouncycastle.crypto.Digest , io.anyline.nfc.bouncycastle.crypto.ExtendedDigest , io.anyline.nfc.bouncycastle.util.Memoable 
    
public class MD2Digest
 implements ExtendedDigest, Memoable

    implementation of MD2 as outlined in RFC1319 by B.Kaliski from RSA Laboratories April 1992

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      String getAlgorithmName() return the algorithm name
      int getDigestSize() return the size, in bytes, of the digest produced by this message digest.
      int doFinal(Array<byte> out, int outOff) close the digest, producing the final digest value.
      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(Array<byte> in, int inOff, int len) update the message digest with a block of bytes.
      int getByteLength() Return the size in bytes of the internal buffer the digest applies it's compression function to.
      Memoable copy() Produce a copy of this object with its configuration and in its current state.
      void reset(Memoable other) Restore a copied object state into this object.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • MD2Digest

        MD2Digest()

    • Method Detail

      • getDigestSize

         int getDigestSize()

        return the size, in bytes, of the digest produced by this message digest.

        Returns:

        the size, in bytes, of the digest produced by this message digest.

      • doFinal

         int doFinal(Array<byte> out, int outOff)

        close the digest, producing the final digest value. The doFinal call leaves the digest reset.

        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

         void reset()

        reset the digest back to it's initial state.

      • update

         void update(byte in)

        update the message digest with a single byte.

        Parameters:
        in - the input byte to be entered.

      • update

         void update(Array<byte> in, int inOff, int len)

        update the message digest with a block of bytes.

        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.

      • getByteLength

         int getByteLength()

        Return the size in bytes of the internal buffer the digest applies it's compression function to.

        Returns:

        byte length of the digests internal buffer.

      • copy

         Memoable copy()

        Produce a copy of this object with its configuration and in its current state.

        The returned object may be used simply to store the state, or may be used as a similar object starting from the copied state.

      • reset

         void reset(Memoable other)

        Restore a copied object state into this object.

        Implementations of this method should try to avoid or minimise memory allocation to perform the reset.

        Parameters:
        other - an object originally copied from an object of the same type as this instance.