| java.lang.Object
 org.bouncycastle.crypto.macs.ISO9797Alg3Mac
| ISO9797Alg3Mac | | public class ISO9797Alg3Mac implements Mac(Code) | | DES based CBC Block Cipher MAC according to ISO9797, algorithm 3 (ANSI X9.19 Retail MAC)
This could as well be derived from CBCBlockCipherMac, but then the property mac in the base
class must be changed to protected
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| ISO9797Alg3Mac | | public ISO9797Alg3Mac(BlockCipher cipher)(Code) | | create a Retail-MAC based on a CBC block cipher. This will produce an
authentication code of the length of the block size of the cipher.
Parameters:
cipher - the cipher to be used as the basis of the MAC generation. This mustbe DESEngine. |
| ISO9797Alg3Mac | | public ISO9797Alg3Mac(BlockCipher cipher, BlockCipherPadding padding)(Code) | | create a Retail-MAC based on a CBC block cipher. This will produce an
authentication code of the length of the block size of the cipher.
Parameters:
cipher - the cipher to be used as the basis of the MAC generation.
Parameters:
padding - the padding to be used to complete the last block. |
| ISO9797Alg3Mac | | public ISO9797Alg3Mac(BlockCipher cipher, int macSizeInBits)(Code) | | create a Retail-MAC based on a block cipher with the size of the
MAC been given in bits. This class uses single DES CBC mode as the basis for the
MAC generation.
Note: the size of the MAC must be at least 24 bits (FIPS Publication 81),
or 16 bits if being used as a data authenticator (FIPS Publication 113),
and in general should be less than the size of the block cipher as it reduces
the chance of an exhaustive attack (see Handbook of Applied Cryptography).
Parameters:
cipher - the cipher to be used as the basis of the MAC generation.
Parameters:
macSizeInBits - the size of the MAC in bits, must be a multiple of 8. |
| ISO9797Alg3Mac | | public ISO9797Alg3Mac(BlockCipher cipher, int macSizeInBits, BlockCipherPadding padding)(Code) | | create a standard MAC based on a block cipher with the size of the
MAC been given in bits. This class uses single DES CBC mode as the basis for the
MAC generation. The final block is decrypted and then encrypted using the
middle and right part of the key.
Note: the size of the MAC must be at least 24 bits (FIPS Publication 81),
or 16 bits if being used as a data authenticator (FIPS Publication 113),
and in general should be less than the size of the block cipher as it reduces
the chance of an exhaustive attack (see Handbook of Applied Cryptography).
Parameters:
cipher - the cipher to be used as the basis of the MAC generation.
Parameters:
macSizeInBits - the size of the MAC in bits, must be a multiple of 8.
Parameters:
padding - the padding to be used to complete the last block. |
| doFinal | | public int doFinal(byte[] out, int outOff)(Code) | | |
| getMacSize | | public int getMacSize()(Code) | | |
| reset | | public void reset()(Code) | | Reset the mac generator.
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| update | | public void update(byte in)(Code) | | |
| update | | public void update(byte[] in, int inOff, int len)(Code) | | |
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