Bouncy Castle Cryptography Library 1.37

org.bouncycastle.crypto.digests
Class GOST3411Digest

java.lang.Object
  extended by org.bouncycastle.crypto.digests.GOST3411Digest
All Implemented Interfaces:
Digest, ExtendedDigest

public class GOST3411Digest
extends java.lang.Object
implements ExtendedDigest

implementation of GOST R 34.11-94


Constructor Summary
GOST3411Digest()
          Standard constructor
GOST3411Digest(GOST3411Digest t)
          Copy constructor.
 
Method Summary
 int doFinal(byte[] out, int outOff)
          close the digest, producing the final digest value.
 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 processBlock(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
 

Constructor Detail

GOST3411Digest

public GOST3411Digest()
Standard constructor


GOST3411Digest

public GOST3411Digest(GOST3411Digest t)
Copy constructor. This will copy the state of the provided message digest.

Method Detail

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 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.

processBlock

protected void processBlock(byte[] in,
                            int inOff)

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

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.

Bouncy Castle Cryptography Library 1.37