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Bouncy Castle Cryptography Library 1.49 | ||||||||
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java.lang.Objectorg.bouncycastle.crypto.digests.GeneralDigest
org.bouncycastle.crypto.digests.SHA1Digest
public class SHA1Digest
implementation of SHA-1 as outlined in "Handbook of Applied Cryptography", pages 346 - 349. It is interesting to ponder why the, apart from the extra IV, the other difference here from MD5 is the "endianness" of the word processing!
Constructor Summary | |
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SHA1Digest()
Standard constructor |
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SHA1Digest(SHA1Digest t)
Copy constructor. |
Method Summary | |
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Memoable |
copy()
Produce a copy of this object with its configuration and in its current state. |
int |
doFinal(byte[] out,
int outOff)
close the digest, producing the final digest value. |
java.lang.String |
getAlgorithmName()
return the algorithm name |
int |
getDigestSize()
return the size, in bytes, of the digest produced by this message digest. |
protected void |
processBlock()
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protected void |
processLength(long bitLength)
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protected void |
processWord(byte[] in,
int inOff)
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void |
reset()
reset the chaining variables |
void |
reset(Memoable other)
Restore a copied object state into this object. |
Methods inherited from class org.bouncycastle.crypto.digests.GeneralDigest |
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copyIn, finish, getByteLength, update, update |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SHA1Digest()
public SHA1Digest(SHA1Digest t)
Method Detail |
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public java.lang.String getAlgorithmName()
Digest
public int getDigestSize()
Digest
protected void processWord(byte[] in, int inOff)
processWord
in class GeneralDigest
protected void processLength(long bitLength)
processLength
in class GeneralDigest
public int doFinal(byte[] out, int outOff)
Digest
out
- the array the digest is to be copied into.outOff
- the offset into the out array the digest is to start at.public void reset()
reset
in interface Digest
reset
in class GeneralDigest
protected void processBlock()
processBlock
in class GeneralDigest
public Memoable copy()
Memoable
public void reset(Memoable other)
Memoable
other
- an object originally copied
from an object of the same type as this instance.
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Bouncy Castle Cryptography Library 1.49 | ||||||||
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