Class HMac
- java.lang.Object
-
- org.gudy.bouncycastle.crypto.macs.HMac
-
-
Field Summary
Fields Modifier and Type Field Description private static int
BLOCK_LENGTH
private Digest
digest
private int
digestSize
private byte[]
inputPad
private static byte
IPAD
private static byte
OPAD
private byte[]
outputPad
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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).Digest
getUnderlyingDigest()
void
init(CipherParameters params)
Initialise the MAC.void
reset()
Reset the mac generator.void
update(byte in)
add a single byte to the mac for processing.void
update(byte[] in, int inOff, int len)
-
-
-
Field Detail
-
BLOCK_LENGTH
private static final int BLOCK_LENGTH
- See Also:
- Constant Field Values
-
IPAD
private static final byte IPAD
- See Also:
- Constant Field Values
-
OPAD
private static final byte OPAD
- See Also:
- Constant Field Values
-
digest
private Digest digest
-
digestSize
private int digestSize
-
inputPad
private byte[] inputPad
-
outputPad
private byte[] outputPad
-
-
Constructor Detail
-
HMac
public HMac(Digest digest)
-
-
Method Detail
-
getAlgorithmName
public java.lang.String getAlgorithmName()
Description copied from interface:Mac
Return the name of the algorithm the MAC implements.- Specified by:
getAlgorithmName
in interfaceMac
- Returns:
- the name of the algorithm the MAC implements.
-
getUnderlyingDigest
public Digest getUnderlyingDigest()
-
init
public void init(CipherParameters params)
Description copied from interface:Mac
Initialise the MAC.
-
getMacSize
public int getMacSize()
Description copied from interface:Mac
Return the block size for this cipher (in bytes).- Specified by:
getMacSize
in interfaceMac
- Returns:
- the block size for this cipher in bytes.
-
update
public void update(byte in)
Description copied from interface:Mac
add a single byte to the mac for processing.
-
update
public void update(byte[] in, int inOff, int len)
-
doFinal
public int doFinal(byte[] out, int outOff)
Description copied from interface:Mac
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.
-
-