Bouncy Castle Cryptography 1.11 API Specification: Class SerpentEngine
|
Bouncy Castle Cryptography 1.11 | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--org.bouncycastle.crypto.engines.SerpentEngine
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
Constructor Summary | |
SerpentEngine()
|
Method Summary | |
java.lang.String |
getAlgorithmName()
Return the name of the algorithm the cipher implements. |
int |
getBlockSize()
Return the block size for this cipher (in bytes). |
void |
init(boolean encrypting,
CipherParameters params)
initialise a Serpent cipher. |
int |
processBlock(byte[] in,
int inOff,
byte[] out,
int outOff)
Process one block of input from the array in and write it to the out array. |
void |
reset()
Reset the cipher. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public SerpentEngine()
Method Detail |
public void init(boolean encrypting, CipherParameters params)
init
in interface BlockCipher
forEncryption
- whether or not we are for encryption.params
- the parameters required to set up the cipher.java.lang.IllegalArgumentException
- if the params argument is
inappropriate.public java.lang.String getAlgorithmName()
BlockCipher
getAlgorithmName
in interface BlockCipher
org.bouncycastle.crypto.BlockCipher
public int getBlockSize()
BlockCipher
getBlockSize
in interface BlockCipher
org.bouncycastle.crypto.BlockCipher
public final int processBlock(byte[] in, int inOff, byte[] out, int outOff)
processBlock
in interface BlockCipher
in
- the array containing the input data.inOff
- offset into the in array the data starts at.out
- the array the output data will be copied into.outOff
- the offset into the out array the output will start at.DataLengthException
- if there isn't enough data in in, or
space in out.java.lang.IllegalStateException
- if the cipher isn't initialised.public void reset()
BlockCipher
reset
in interface BlockCipher
|
Bouncy Castle Cryptography 1.11 | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |