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
Public Constructors | |||||||||||
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Public Methods | |||||||||||
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Return the name of the algorithm the cipher implements.
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Return the block size for this cipher (in bytes).
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initialise a Serpent cipher.
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Process one block of input from the array in and write it to
the out array.
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Reset the cipher.
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
org.bouncycastle.crypto.BlockCipher
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Return the name of the algorithm the cipher implements.
Return the block size for this cipher (in bytes).
initialise a Serpent cipher.
encrypting | whether or not we are for encryption. |
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params | the parameters required to set up the cipher. |
IllegalArgumentException | if the params argument is inappropriate. |
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Process one block of input from the array in and write it to the out array.
in | the array containing the input data. |
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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. |
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IllegalStateException | if the cipher isn't initialised. |
Reset the cipher. After resetting the cipher is in the same state as it was after the last init (if there was one).