Class HMac
- java.lang.Object
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- com.ongres.scram.common.bouncycastle.pbkdf2.HMac
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Field Summary
Fields Modifier and Type Field Description private int
blockLength
private static java.util.Hashtable<java.lang.String,java.lang.Integer>
blockLengths
private Digest
digest
private int
digestSize
private byte[]
inputPad
private static byte
IPAD
private Memoable
ipadState
private static byte
OPAD
private Memoable
opadState
private byte[]
outputBuf
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
doFinal(byte[] out, int outOff)
Compute the final stage of the MAC writing the output to the out parameter.java.lang.String
getAlgorithmName()
Return the name of the algorithm the MAC implements.private static int
getByteLength(Digest digest)
int
getMacSize()
Return the block size for this MAC (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)
private static void
xorPad(byte[] pad, int len, byte n)
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Field Detail
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IPAD
private static final byte IPAD
- See Also:
- Constant Field Values
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OPAD
private static final byte OPAD
- See Also:
- Constant Field Values
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digest
private Digest digest
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digestSize
private int digestSize
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blockLength
private int blockLength
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ipadState
private Memoable ipadState
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opadState
private Memoable opadState
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inputPad
private byte[] inputPad
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outputBuf
private byte[] outputBuf
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blockLengths
private static java.util.Hashtable<java.lang.String,java.lang.Integer> blockLengths
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Method Detail
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getByteLength
private static int getByteLength(Digest digest)
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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.
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getUnderlyingDigest
public Digest getUnderlyingDigest()
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init
public void init(CipherParameters params)
Description copied from interface:Mac
Initialise the MAC.
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getMacSize
public int getMacSize()
Description copied from interface:Mac
Return the block size for this MAC (in bytes).- Specified by:
getMacSize
in interfaceMac
- Returns:
- the block size for this MAC in bytes.
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update
public void update(byte in)
Description copied from interface:Mac
add a single byte to the mac for processing.
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update
public void update(byte[] in, int inOff, int len)
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doFinal
public int doFinal(byte[] out, int outOff)
Description copied from interface:Mac
Compute the final stage of the MAC writing the output to the out parameter.doFinal leaves the MAC in the same state it was after the last init.
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xorPad
private static void xorPad(byte[] pad, int len, byte n)
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