| org.bouncycastle.crypto.Mac
All known Subclasses: org.bouncycastle.crypto.macs.ISO9797Alg3Mac, org.bouncycastle.crypto.macs.GOST28147Mac, org.bouncycastle.crypto.macs.CMac, org.bouncycastle.crypto.macs.CBCBlockCipherMac, org.bouncycastle.crypto.macs.OldHMac, org.bouncycastle.crypto.macs.BlockCipherMac, org.bouncycastle.crypto.macs.HMac,
| Mac | | public interface Mac (Code) | | The base interface for implementations of message authentication codes (MACs).
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| Method Summary | |
| public int | doFinal(byte[] out, int outOff)
Compute the final statge of the MAC writing the output to the out
parameter. | | public String | getAlgorithmName()
Return the name of the algorithm the MAC implements. | | public int | getMacSize()
Return the block size for this MAC (in bytes). | | public void | init(CipherParameters params)
Initialise the MAC. | | public void | reset()
Reset the MAC. | | public void | update(byte in)
add a single byte to the mac for processing. | | public void | update(byte[] in, int inOff, int len)
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| doFinal | | public int doFinal(byte[] out, int outOff) throws DataLengthException, IllegalStateException(Code) | | Compute the final statge of the MAC writing the output to the out
parameter.
doFinal leaves the MAC in the same state it was after the last init.
Parameters:
out - the array the MAC is to be output to.
Parameters:
outOff - the offset into the out buffer the output is to start at.
exception:
DataLengthException - if there isn't enough space in out.
exception:
IllegalStateException - if the MAC is not initialised. |
| getAlgorithmName | | public String getAlgorithmName()(Code) | | Return the name of the algorithm the MAC implements.
the name of the algorithm the MAC implements. |
| getMacSize | | public int getMacSize()(Code) | | Return the block size for this MAC (in bytes).
the block size for this MAC in bytes. |
| reset | | public void reset()(Code) | | Reset the MAC. At the end of resetting the MAC should be in the
in the same state it was after the last init (if there was one).
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