Subject: Re: MD5 sums vs CRC Sum
From: "Martin G. Diehl" <mdiehl@nac.net>
Date: 26/11/2003, 17:50
Newsgroups: alt.sci.seti

Martin wrote:

Kenton W. Mellott wrote:
I was wondering what the actual processes that were used 
to generated both the MD5 and CRC sum checks.

Try www.google.com

Both algorithms are very well documented and researched.

Discussion found on the RSA site ... 
http://www.rsasecurity.com/rsalabs/faq/3-6-6.html

Quoting from that page, "Description and source code for the 
three algorithms can be found as Internet RFCs 1319-1321 ... ." 

Here is the RFC for MD5 ... 
http://www.ietf.org/rfc/rfc1321.txt

I have been trying to make a type of file verifying index 
for CSV files and came up with a system that multiplies the 
bytes in the file with their position in the file.  I had 
to make my own STRING adder to be sure it could handle what 
ever values it all added up tom though.

MD5 uses these logical functions: AND, OR, XOR, and NOT.  

Why?

Good luck,
Martin

--

-- Martin G. Diehl Reality -- That which remains after you stop thinking about it. All replies and comments accepted and considered. Adoption of your suggestions are at my sole discretion. Award criteria are unpublished and are considered to be a trade secret. As such, awards for your responses cannot be guaranteed. Incoming flames may be stored for use during severe winters or may be circulated for deep analysis, peer review, and/or literary criticism.