| 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
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| Field Summary | |
| final static int | PHI
| | final static int | ROUNDS
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| Method Summary | |
| public String | getAlgorithmName()
| | public int | getBlockSize()
| | public void | init(boolean encrypting, CipherParameters params)
initialise a Serpent cipher. | | final public 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.
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 void | reset()
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| ROUNDS | | final static int ROUNDS(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) | | |
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