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java.lang.Object | +--javax.crypto.spec.RC5ParameterSpec
The parameters consist of a version number, a rounds count, a word size, and optionally an initialization vector (IV) (only in feedback mode).
This class can be used to initialize a Cipher
object that
implements the RC5 algorithm as supplied by RSA Data Security, Inc.,
or parties authorized by RSA Data Security.
Constructor Summary | |
RC5ParameterSpec(int version,
int rounds,
int wordSize)
Constructs a parameter set for RC5 from the given version, number of rounds and word size (in bits). |
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RC5ParameterSpec(int version,
int rounds,
int wordSize,
byte[] iv)
Constructs a parameter set for RC5 from the given version, number of rounds, word size (in bits), and IV. Note that the size of the IV (block size) must be twice the word size. |
|
RC5ParameterSpec(int version,
int rounds,
int wordSize,
byte[] iv,
int offset)
Constructs a parameter set for RC5 from the given version, number of rounds, word size (in bits), and IV. The IV is taken from iv , starting at offset .
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Method Summary | |
byte[] | getIV()
Returns the IV or null if this parameter set does not contain an IV. |
int | getRounds()
Returns the number of rounds. |
int | getVersion()
Returns the version. |
int | getWordSize()
Returns the word size in bits. |
Methods inherited from class java.lang.Object | |
clone, equals, finalize, getClass, hashCode, notifyAll, notify, toString, wait, wait, wait |
Constructor Detail |
public RC5ParameterSpec(int version, int rounds, int wordSize)
version
- the version.
rounds
- the number of rounds.
wordSize
- the word size in bits.public RC5ParameterSpec(int version, int rounds, int wordSize, byte[] iv)
version
- the version.
rounds
- the number of rounds.
wordSize
- the word size in bits.
iv
- the buffer with the IV.public RC5ParameterSpec(int version, int rounds, int wordSize, byte[] iv, int offset)
iv
, starting at offset
.
Note that the size of the IV (block size), starting at
offset
, must be twice the word size.
version
- the version.
rounds
- the number of rounds.
wordSize
- the word size in bits.
iv
- the buffer with the IV.
offset
- the offset in iv
where the IV starts.Method Detail |
public int getVersion()
public int getRounds()
public int getWordSize()
public byte[] getIV()
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