cryptix.provider.key
Class RC4KeyGenerator
- Cloneable, ExtendedKeyGenerator, Parameterized
public class RC4KeyGenerator
A variable-length key generator for RC4.
This implementation allows keys to have a length of between 40 and
1024 bits. The default length is 128 bits.
References:
- Andrew Roos <andrewr@vironix.co.za> (Vironix Software Laboratories),
A Class of Weak Keys in the RC4 Stream Cipher,
Preliminary draft posted to sci.crypt, 4th November 1997.
Copyright © 1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.2 $
protected boolean | isWeak(byte[] key)- Returns true iff key is a weak RC4 key, as described in Andrew
Roos' paper.
|
engineGenerateKey, generateKey, generateKey, getDefaultKeyLength, getMaximumKeyLength, getMinimumKeyLength, initialize, initialize, isValidKeyLength, isWeak, isWeakAllowed, setWeakAllowed |
clone, engineGetParameter, engineSetParameter, generateKey, getAlgorithm, getAlgorithms, getAlgorithms, getInstance, getInstance, getParameter, initialize, setParameter, toString |
RC4KeyGenerator
public RC4KeyGenerator()
isWeak
protected boolean isWeak(byte[] key)
Returns true iff key is a weak RC4 key, as described in Andrew
Roos' paper.
- isWeak in interface RawKeyGenerator