Package org.bouncycastle.crypto.digests

Class ISAPDigest

java.lang.Object
org.bouncycastle.crypto.digests.ISAPDigest
All Implemented Interfaces:
Digest
public class ISAPDigest extends 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

    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.
    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 Details

    • ISAPDigest

      public ISAPDigest()

  • Method Details

    • U64BIG

      protected long U64BIG(long x)

    • getAlgorithmName

      public 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