cryptix.provider.md
Class SHA0
- Cloneable
public final class SHA0
implements Cloneable
This class implements the SHA-0 message digest algorithm
(not to be confused with the revised SHA-1 algorithm). SHA-1
is preferred for new applications.
BUG: The update method is missing.
References:
- NIST FIPS PUB 180,
"Secure Hash Standard",
U.S. Department of Commerce, May 1993.
Copyright © 1995-1997
Systemics Ltd on behalf of the
Cryptix Development Team.
All rights reserved.
$Revision: 1.7 $
- Systemics Ltd
- David Hopwood
SHA0() - The public constructor.
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Object | clone() - Returns a copy of this MD object.
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protected byte[] | engineDigest(byte[] in, int length) - Returns the digest of the data added and resets the digest.
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protected int | engineGetDataLength() - Returns the length of the data (in bytes) hashed in every transform.
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protected int | engineGetDigestLength() - Returns the length of the hash (in bytes).
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protected void | engineReset() - Initializes (resets) the message digest.
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protected void | engineTransform(byte[] in) - Adds data to the message digest.
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static void | main(argv[] ) - Entry point for
self_test .
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static void | self_test() - Do some basic tests.
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DATA_LENGTH
public static final int DATA_LENGTH
Length of a block (i.e. the number of bytes hashed in every transform).
HASH_LENGTH
public static final int HASH_LENGTH
Length of the final hash (in bytes).
SHA0
public SHA0()
The public constructor.
clone
public Object clone()
Returns a copy of this MD object.
engineDigest
protected byte[] engineDigest(byte[] in,
int length)
Returns the digest of the data added and resets the digest.
- engineDigest in interface BlockMessageDigest
- the digest of all the data added to the message digest as a byte array.
engineGetDigestLength
protected int engineGetDigestLength()
Returns the length of the hash (in bytes).
main
public static final void main(argv[] )
Entry point for self_test
.
self_test
public static final void self_test()
throws Exception
Do some basic tests.
Three of the validation data are included only, no output,
success or exception.
If you want more, write a test program!