Package org.bouncycastle.crypto.digests

Class LongDigest

java.lang.Object
org.bouncycastle.crypto.digests.LongDigest
All Implemented Interfaces:
Digest, ExtendedDigest, Memoable
Direct Known Subclasses:
SHA384Digest, SHA512Digest
public abstract class LongDigest
extends Object
implements ExtendedDigest, Memoable
Base class for SHA-384 and SHA-512.

  • Field Summary

    Fields
    Modifier and Type Field Description
    protected long H1  
    protected long H2  
    protected long H3  
    protected long H4  
    protected long H5  
    protected long H6  
    protected long H7  
    protected long H8  

  • Constructor Summary

    Constructors
    Modifier Constructor Description
    protected LongDigest()
    Constructor for variable length word
    protected LongDigest​(LongDigest t)
    Copy constructor.

  • Method Summary

    Modifier and Type Method Description
    protected void copyIn​(LongDigest t)  
    void finish()  
    int getByteLength()
    Return the size in bytes of the internal buffer the digest applies it's compression function to.
    protected void processBlock()  
    protected void processLength​(long lowW, long hiW)  
    protected void processWord​(byte[] in, 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[] in, 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

    Methods inherited from interface org.bouncycastle.crypto.Digest

    doFinal, getAlgorithmName, getDigestSize

    Methods inherited from interface org.bouncycastle.util.Memoable

    copy, reset

  • Field Details

    • H1

      protected long H1

    • H2

      protected long H2

    • H3

      protected long H3

    • H4

      protected long H4

    • H5

      protected long H5

    • H6

      protected long H6

    • H7

      protected long H7

    • H8

      protected long H8

  • Constructor Details

    • LongDigest

      protected LongDigest()
      Constructor for variable length word

    • LongDigest

      protected LongDigest​(LongDigest t)
      Copy constructor. We are using copy constructors in place of the Object.clone() interface as this interface is not supported by J2ME.

  • Method Details

    • copyIn

      protected void copyIn​(LongDigest t)

    • 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[] in, 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:
      in - the byte array containing the data.
      inOff - the offset into the byte array where the data starts.
      len - the length of the data.

    • finish

      public void finish()

    • reset

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

    • processWord

      protected void processWord​(byte[] in, int inOff)

    • processLength

      protected void processLength​(long lowW, long hiW)

    • processBlock

      protected void processBlock()