| java.lang.Object
 org.python.modules.SHA1
| SHA1 | | final public class SHA1 (Code) | | This class implements the SHA-1 message digest algorithm.
References:
- Bruce Schneier,
"Section 18.7 Secure Hash Algorithm (SHA),"
Applied Cryptography, 2nd edition,
John Wiley & Sons, 1996
- NIST FIPS PUB 180-1,
"Secure Hash Standard",
U.S. Department of Commerce, May 1993.
http://www.itl.nist.gov/div897/pubs/fip180-1.htm
Copyright © 1995-1997
Systemics Ltd on behalf of the
Cryptix Development
Team.
All rights reserved.
Revision: 1.7
author:
Systemics Ltd
author:
David Hopwood
since:
Cryptix 2.2.2 |
| Constructor Summary | |
| public | SHA1()
Constructs a SHA-1 message digest. |
| Method Summary | |
| public SHA1 | copy()
Add an array of bytes to the digest. | | public String | digest()
| | protected byte[] | engineDigest()
SPI: Calculates the final digest. | | protected byte[] | engineDigest(byte[] in, int length)
Returns the digest of the data added and resets the digest. | | protected void | engineReset()
Initializes (resets) the message digest. | | protected void | engineTransform(byte[] in)
Adds data to the message digest. | | protected void | engineUpdate(byte b)
SPI: Updates the message digest with a byte of new data. | | protected void | engineUpdate(byte[] data, int offset, int length)
SPI: Updates the message digest with new data. | | public String | hexdigest()
Print out the digest in a form that can be easily compared
to the test vectors. | | public String | toString()
| | public synchronized void | update(byte input)
Add an array of bytes to the digest. |
| digest_size | | public int digest_size(Code) | | |
| SHA1 | | public SHA1()(Code) | | Constructs a SHA-1 message digest.
|
| copy | | public SHA1 copy()(Code) | | Add an array of bytes to the digest.
|
| engineDigest | | protected byte[] engineDigest()(Code) | | SPI: Calculates the final digest. BlockMessageDigest
subclasses should not usually override this method.
the digest as a byte array. |
| engineDigest | | protected byte[] engineDigest(byte[] in, int length)(Code) | | Returns the digest of the data added and resets the digest.
the digest of all the data added to the message digestas a byte array. |
| engineReset | | protected void engineReset()(Code) | | Initializes (resets) the message digest.
|
| engineTransform | | protected void engineTransform(byte[] in)(Code) | | Adds data to the message digest.
Parameters:
data - The data to be added.
Parameters:
offset - The start of the data in the array.
Parameters:
length - The amount of data to add. |
| engineUpdate | | protected void engineUpdate(byte b)(Code) | | SPI: Updates the message digest with a byte of new data.
Parameters:
b - the byte to be added. |
| engineUpdate | | protected void engineUpdate(byte[] data, int offset, int length)(Code) | | SPI: Updates the message digest with new data.
Parameters:
data - the data to be added.
Parameters:
offset - the start of the data in the array.
Parameters:
length - the number of bytes of data to add. |
| hexdigest | | public String hexdigest()(Code) | | Print out the digest in a form that can be easily compared
to the test vectors.
|
| update | | public synchronized void update(byte input)(Code) | | Add an array of bytes to the digest.
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