Implements calculation of the 128-bit "fingerprint" or "message digest" for the MD4 message digest algorithm.
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Parameters |
Description |
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AStream |
Stream containing input values for the message digest algorithm. |
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ABeginPos |
Initial stream position to use in calcualting the hash value. |
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AEndPos |
Final stream position to use in calculating the hash value. |
T4x4LongWordRecord - 128-bit message digest calculated from the input data.
HashValue is an overloaded T4x4LongWordRecord function in TIdHashMessageDigest4 that implements calculation of the 128-bit "fingerprint" or "message digest" for the values in the AStream input stream.
This version of the method provides support for calculating the hash value using only part of the data in AStream as indicated by the ABeginPos and AEndPos arguments.
HashValue reads 64-byte chunks of data from the values in AStream, and applies the substitution algorithm required for MD4.
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Internet Direct (Indy) version 10.1.5
Copyright © 1993-2006, Chad Z. Hower (aka Kudzu) and the Indy Pit Crew. All rights reserved. Website http://www.indyproject.org. Post feedback to the Indy Documentation newsgroup. |
Parameters