Package org.bouncycastle.crypto.digests

Class ISAPDigest

  • All Implemented Interfaces:
    Digest
    public class ISAPDigest
extends java.lang.Object
implements Digest
    ISAP Hash v2, https://isap.iaik.tugraz.at/ https://csrc.nist.gov/CSRC/media/Projects/lightweight-cryptography/documents/finalist-round/updated-spec-doc/isap-spec-final.pdf

    ISAP Hash v2 with reference to C Reference Impl from: https://github.com/isap-lwc/isap-code-package

    • Constructor Summary

      Constructors 
      Constructor Description
      ISAPDigest()  

    • 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.
      void reset()
      reset the digest back to it's initial state.
      protected long U64BIG​(long x)  
      void update​(byte input)
      update the message digest with a single byte.
      void update​(byte[] input, 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

    • Constructor Detail

      • ISAPDigest

        public ISAPDigest()

    • Method Detail

      • U64BIG

        protected long U64BIG​(long x)

      • getAlgorithmName

        public java.lang.String getAlgorithmName()
        Description copied from interface: Digest
        return the algorithm name
        Specified by:
        getAlgorithmName in interface Digest
        Returns:
        the algorithm name

      • getDigestSize

        public int getDigestSize()
        Description copied from interface: Digest
        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.

      • update

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

      • update

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

      • doFinal

        public int doFinal​(byte[] out,
                   int outOff)
        Description copied from interface: Digest
        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()
        Description copied from interface: Digest
        reset the digest back to it's initial state.
        Specified by:
        reset in interface Digest