Package org.bouncycastle.crypto.digests
Class CSHAKEDigest
- java.lang.Object
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- org.bouncycastle.crypto.digests.KeccakDigest
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- org.bouncycastle.crypto.digests.SHAKEDigest
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- org.bouncycastle.crypto.digests.CSHAKEDigest
 
 
 
 
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- All Implemented Interfaces:
 Digest,ExtendedDigest,Xof
public class CSHAKEDigest extends SHAKEDigest
Customizable SHAKE function. 
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Field Summary
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Fields inherited from class org.bouncycastle.crypto.digests.KeccakDigest
bitsInQueue, dataQueue, fixedOutputLength, rate, squeezing, state 
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Constructor Summary
Constructors Constructor Description CSHAKEDigest(int bitLength, byte[] N, byte[] S)Base constructor. 
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description intdoOutput(byte[] out, int outOff, int outLen)Start outputting the results of the final calculation for this digest.java.lang.StringgetAlgorithmName()return the algorithm namevoidreset()reset the digest back to it's initial state.- 
Methods inherited from class org.bouncycastle.crypto.digests.SHAKEDigest
doFinal, doFinal, doFinal, doFinal 
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Methods inherited from class org.bouncycastle.crypto.digests.KeccakDigest
absorb, absorb, absorbBits, dumpState, getByteLength, getDigestSize, squeeze, update, update 
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 
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Methods inherited from interface org.bouncycastle.crypto.Digest
getDigestSize, update, update 
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Methods inherited from interface org.bouncycastle.crypto.ExtendedDigest
getByteLength 
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Constructor Detail
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CSHAKEDigest
public CSHAKEDigest(int bitLength, byte[] N, byte[] S)Base constructor.- Parameters:
 bitLength- bit length of the underlying SHAKE function, 128 or 256.N- the function name string, note this is reserved for use by NIST. Avoid using it if not required.S- the customization string - available for local use.
 
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Method Detail
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getAlgorithmName
public java.lang.String getAlgorithmName()
Description copied from interface:Digestreturn the algorithm name- Specified by:
 getAlgorithmNamein interfaceDigest- Overrides:
 getAlgorithmNamein classSHAKEDigest- Returns:
 - the algorithm name
 
 
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doOutput
public int doOutput(byte[] out, int outOff, int outLen)Description copied from interface:XofStart outputting the results of the final calculation for this digest. Unlike doFinal, this method will continue producing output until the Xof is explicitly reset, or signals otherwise.- Specified by:
 doOutputin interfaceXof- Overrides:
 doOutputin classSHAKEDigest- Parameters:
 out- output array to write the output bytes to.outOff- offset to start writing the bytes at.outLen- the number of output bytes requested.- Returns:
 - the number of bytes written
 
 
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reset
public void reset()
Description copied from interface:Digestreset the digest back to it's initial state.- Specified by:
 resetin interfaceDigest- Overrides:
 resetin classKeccakDigest
 
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