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Bouncy Castle Cryptography 1.29 | ||||||||
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java.lang.Object | +--org.bouncycastle.crypto.macs.GOST28147Mac
implementation of GOST 28147-89 MAC
| Constructor Summary | |
GOST28147Mac()
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| Method Summary | |
int |
doFinal(byte[] out,
int outOff)
Compute the final statge of the MAC writing the output to the out parameter. |
java.lang.String |
getAlgorithmName()
Return the name of the algorithm the MAC implements. |
int |
getMacSize()
Return the block size for this cipher (in bytes). |
void |
init(CipherParameters params)
Initialise the MAC. |
void |
reset()
Reset the MAC. |
void |
update(byte in)
add a single byte to the mac for processing. |
void |
update(byte[] in,
int inOff,
int len)
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| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public GOST28147Mac()
| Method Detail |
public void init(CipherParameters params)
throws java.lang.IllegalArgumentException
Macinit in interface Macorg.bouncycastle.crypto.Macparams - the key and other data required by the MAC.java.lang.IllegalArgumentException - if the params argument is
inappropriate.public java.lang.String getAlgorithmName()
MacgetAlgorithmName in interface Macorg.bouncycastle.crypto.Macpublic int getMacSize()
MacgetMacSize in interface Macorg.bouncycastle.crypto.Mac
public void update(byte in)
throws java.lang.IllegalStateException
Macupdate in interface Macorg.bouncycastle.crypto.Macin - the byte to be processed.java.lang.IllegalStateException - if the MAC is not initialised.
public void update(byte[] in,
int inOff,
int len)
throws DataLengthException,
java.lang.IllegalStateException
update in interface Macorg.bouncycastle.crypto.Macin - the array containing the input.inOff - the index in the array the data begins at.len - the length of the input starting at inOff.java.lang.IllegalStateException - if the MAC is not initialised.DataLengthException - if there isn't enough data in in.
public int doFinal(byte[] out,
int outOff)
throws DataLengthException,
java.lang.IllegalStateException
MacdoFinal leaves the MAC in the same state it was after the last init.
doFinal in interface Macorg.bouncycastle.crypto.Macout - the array the MAC is to be output to.outOff - the offset into the out buffer the output is to start at.DataLengthException - if there isn't enough space in out.java.lang.IllegalStateException - if the MAC is not initialised.public void reset()
Macreset in interface Mac
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Bouncy Castle Cryptography 1.29 | ||||||||
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