Package org.bouncycastle.crypto.digests

Class PhotonBeetleDigest

  • All Implemented Interfaces:
    Digest, ExtendedDigest
    public class PhotonBeetleDigest
extends java.lang.Object
    Photon-Beetle, https://www.isical.ac.in/~lightweight/beetle/ https://csrc.nist.gov/CSRC/media/Projects/lightweight-cryptography/documents/finalist-round/updated-spec-doc/photon-beetle-spec-final.pdf

    Photon-Beetle with reference to C Reference Impl from: https://github.com/PHOTON-Beetle/Software

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected java.lang.String algorithmName  
      protected int BlockSize  
      protected int DigestSize  
      protected byte[] m_buf  
      protected int m_bufPos  
      protected org.bouncycastle.crypto.digests.BufferBaseDigest.ProcessingBuffer processor  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      int doFinal​(byte[] output, int outOff)
      close the digest, producing the final digest value.
      protected void ensureSufficientInputBuffer​(byte[] input, int inOff, int len)  
      protected void ensureSufficientOutputBuffer​(byte[] output, int outOff)  
      protected void finish​(byte[] output, int outOff)  
      java.lang.String getAlgorithmName()
      return the algorithm name
      int getByteLength()
      Return the size in bytes of the internal buffer the digest applies it's compression function to.
      int getDigestSize()
      return the size, in bytes, of the digest produced by this message digest.
      protected void processBytes​(byte[] input, int inOff)  
      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[] 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

    • Field Detail

      • DigestSize

        protected int DigestSize

      • BlockSize

        protected int BlockSize

      • m_buf

        protected byte[] m_buf

      • m_bufPos

        protected int m_bufPos

      • algorithmName

        protected java.lang.String algorithmName

      • processor

        protected org.bouncycastle.crypto.digests.BufferBaseDigest.ProcessingBuffer processor

    • Constructor Detail

      • PhotonBeetleDigest

        public PhotonBeetleDigest()

    • Method Detail

      • processBytes

        protected void processBytes​(byte[] input,
                            int inOff)

      • finish

        protected void finish​(byte[] output,
                      int outOff)

      • reset

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

      • 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.

      • getByteLength

        public int getByteLength()
        Description copied from interface: ExtendedDigest
        Return the size in bytes of the internal buffer the digest applies it's compression function to.
        Specified by:
        getByteLength in interface ExtendedDigest
        Returns:
        byte length of the digests internal buffer.

      • update

        public void update​(byte in)
        Description copied from interface: Digest
        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[] 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[] output,
                   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:
        output - the array the digest is to be copied into.
        outOff - the offset into the out array the digest is to start at.

      • ensureSufficientInputBuffer

        protected void ensureSufficientInputBuffer​(byte[] input,
                                           int inOff,
                                           int len)

      • ensureSufficientOutputBuffer

        protected void ensureSufficientOutputBuffer​(byte[] output,
                                            int outOff)