Package com.icodici.crypto.digest

Class Gost3411_2012_256

java.lang.Object

com.icodici.crypto.digest.Digest

com.icodici.crypto.digest.Gost3411_2012_256

public class Gost3411_2012_256
extends Digest

GOST R 34.11-2012, 256 variation “Streebog” (GOST family) digest implementation.

Constructor Summary

Constructors

Constructor	Description
Gost3411_2012_256()

Method Summary

Modifier and Type	Method	Description
protected byte[]	_digest()	Override it to calculate and return digest of all processed data.
protected void	_update(byte[] data, int offset, int size)	Override to process sequence of bytes.
protected int	getChunkSize()	The processing chunk size, used in HMAC/PRF implementations.
int	getLength()	Override to provide digest length in bytes.
protected org.bouncycastle.crypto.Digest	getUnderlyingDigest()

Methods inherited from class com.icodici.crypto.digest.Digest

base64Digest, base64Digest, base64Digest, base64Digest, digest, digest, digest, digest, hexDigest, hexDigest, hexDigest, hexDigest, update, update, update, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Gost3411_2012_256

public Gost3411_2012_256()

Method Detail

getChunkSize

protected int getChunkSize()

Description copied from class: Digest

The processing chunk size, used in HMAC/PRF implementations.

Overrides:

getChunkSize in class Digest

Returns:

block size in bytes

getUnderlyingDigest

protected org.bouncycastle.crypto.Digest getUnderlyingDigest()

_update

protected void _update(byte[] data,
                       int offset,
                       int size)

Description copied from class: Digest

Override to process sequence of bytes. Is called only if the #_digest() was not called. Inner logic protects from update after digest is calculated.

Specified by:

_update in class Digest

Parameters:

data - source message

offset - index to start processing from

size - number of bytes to proces

_digest

protected byte[] _digest()

Description copied from class: Digest

Override it to calculate and return digest of all processed data. It is called only once per instance.

Specified by:

_digest in class Digest

Returns:

digest

getLength

public int getLength()

Description copied from class: Digest

Override to provide digest length in bytes.

Specified by:

getLength in class Digest