Java Doc for SerpentEngine.java in  » Security » Bouncy-Castle » org » bouncycastle » crypto » engines » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Security » Bouncy Castle » org.bouncycastle.crypto.engines 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.bouncycastle.crypto.engines.SerpentEngine

SerpentEngine
public class SerpentEngine implements BlockCipher(Code)
Serpent is a 128-bit 32-round block cipher with variable key lengths, including 128, 192 and 256 bit keys conjectured to be at least as secure as three-key triple-DES.

Serpent was designed by Ross Anderson, Eli Biham and Lars Knudsen as a candidate algorithm for the NIST AES Quest.>

For full details see the The Serpent home page



Field Summary
final static  intPHI
    
final static  intROUNDS
    


Method Summary
public  StringgetAlgorithmName()
    
public  intgetBlockSize()
    
public  voidinit(boolean encrypting, CipherParameters params)
     initialise a Serpent cipher.
final public  intprocessBlock(byte[] in, int inOff, byte[] out, int outOff)
     Process one block of input from the array in and write it to the out array.
Parameters:
  in - the array containing the input data.
Parameters:
  inOff - offset into the in array the data starts at.
Parameters:
  out - the array the output data will be copied into.
Parameters:
  outOff - the offset into the out array the output will start at.
exception:
  DataLengthException - if there isn't enough data in in, orspace in out.
exception:
  IllegalStateException - if the cipher isn't initialised.
public  voidreset()
    

Field Detail
PHI
final static int PHI(Code)



ROUNDS
final static int ROUNDS(Code)





Method Detail
getAlgorithmName
public String getAlgorithmName()(Code)



getBlockSize
public int getBlockSize()(Code)



init
public void init(boolean encrypting, CipherParameters params)(Code)
initialise a Serpent cipher.
Parameters:
  encrypting - whether or not we are for encryption.
Parameters:
  params - the parameters required to set up the cipher.
exception:
  IllegalArgumentException - if the params argument isinappropriate.



processBlock
final public int processBlock(byte[] in, int inOff, byte[] out, int outOff)(Code)
Process one block of input from the array in and write it to the out array.
Parameters:
  in - the array containing the input data.
Parameters:
  inOff - offset into the in array the data starts at.
Parameters:
  out - the array the output data will be copied into.
Parameters:
  outOff - the offset into the out array the output will start at.
exception:
  DataLengthException - if there isn't enough data in in, orspace in out.
exception:
  IllegalStateException - if the cipher isn't initialised. the number of bytes processed and produced.



reset
public void reset()(Code)



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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