gnu.javax.crypto.cipher
Class Rijndael
- Cloneable, IBlockCipher, gnu.javax.crypto.cipher.IBlockCipherSpi
Rijndael()- Trivial 0-arguments constructor.
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Iterator<E> | blockSizes()- Returns an
Iterator over the supported block sizes.
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Object | clone()- Returns a clone of this instance.
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void | decrypt(byte[] in, int i, byte[] out, int j, Object k, int bs)- Decrypts exactly one block of ciphertext.
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void | encrypt(byte[] in, int i, byte[] out, int j, Object k, int bs)- Encrypts exactly one block of plaintext.
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static int | getRounds(int ks, int bs)- Returns the number of rounds for a given Rijndael's key and block sizes.
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Iterator<E> | keySizes()- Returns an
Iterator over the supported key sizes.
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Object | makeKey(byte[] k, int bs)- Expands a user-supplied key material into a session key for a designated
block size.
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boolean | selfTest()- A correctness test that consists of basic symmetric encryption /
decryption test(s) for all supported block and key sizes, as well as one
(1) variable key Known Answer Test (KAT).
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clone, currentBlockSize, decryptBlock, defaultBlockSize, defaultKeySize, encryptBlock, init, name, reset, selfTest, testKat, testKat |
clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait |
Rijndael
public Rijndael()
Trivial 0-arguments constructor.
decrypt
public void decrypt(byte[] in,
int i,
byte[] out,
int j,
Object k,
int bs) Decrypts exactly one block of ciphertext.
- decrypt in interface gnu.javax.crypto.cipher.IBlockCipherSpi
in - the ciphertext.out - the plaintext.k - the session key to use.bs - the block size to use.
encrypt
public void encrypt(byte[] in,
int i,
byte[] out,
int j,
Object k,
int bs) Encrypts exactly one block of plaintext.
- encrypt in interface gnu.javax.crypto.cipher.IBlockCipherSpi
in - the plaintext.out - the ciphertext.k - the session key to use.bs - the block size to use.
getRounds
public static int getRounds(int ks,
int bs) Returns the number of rounds for a given Rijndael's key and block sizes.
ks - the size of the user key material in bytes.bs - the desired block size in bytes.
- the number of rounds for a given Rijndael's key and block sizes.
makeKey
public Object makeKey(byte[] k,
int bs)
throws InvalidKeyException Expands a user-supplied key material into a session key for a designated
block size.
- makeKey in interface gnu.javax.crypto.cipher.IBlockCipherSpi
k - the 128/192/256-bit user-key to use.bs - the block size in bytes of this Rijndael.
- an Object encapsulating the session key.
selfTest
public boolean selfTest()
A correctness test that consists of basic symmetric encryption /
decryption test(s) for all supported block and key sizes, as well as one
(1) variable key Known Answer Test (KAT).
- selfTest in interface IBlockCipher
- selfTest in interface gnu.javax.crypto.cipher.IBlockCipherSpi
- selfTest in interface BaseCipher
true if the implementation passes simple
correctness tests. Returns false otherwise.
Rijndael.java --
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