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Software components for data protection, secure storage and transfer

any hash API?

Also by EldoS: CallbackFilter
A component to monitor and control disk activity, track file and directory operations (create, read, write, rename etc.), alter file data, encrypt files, create virtual files.
Posted: 07/23/2006 21:59:44
by Gloria Ho (Standard support level)
Joined: 07/20/2006
Posts: 12

I find HashAlgorithm can be defined in some units.

If I want to hash (like SHA1) data before encryption, is any individual API can do so? 8)
Posted: 07/24/2006 00:49:03
by Ken Ivanov (EldoS Corp.)

Yes, but this API is considered internal and that's why it is not documented. The TElHashFunction class declared in SBHashFunction namespace seems to be the one you need. It should be used in the following way:
byte[] hashInput = new byte[5] { 1, 2, 3, 4, 5 };      
TElHashFunction hash = new TElHashFunction(SBConstants.Unit.SB_ALGORITHM_DGST_SHA1);
hash.Update(hashInput, 0, hashInput.Length);
byte[] hashResult = hash.Finish();



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