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Article #195

Re: What is Checksum, CRC and MD5 hash???

#195
From: 0
Date: Sun, 17 Dec 1995 00:00
30 lines
2743 bytes
vawjr08@ibm.net wrote:

>CRC is the remainder after logically dividing (use XOR instead of subtract) a 
>message/record/whathaveyou by a 'polynomial'.  A well chosen polynomial finds 
>most common transmission errors.  CRC16 has a polynomial of:
>x^16 + x^15 + x^2 + 1
>when doing the divide, you'll be left with a remainder which fits into 16 bits.
>if this is then appended to the original message, the reciver simply does the 
>divide over the entire datastream and gets 0 as the remainder.

>MD5 - damifino... I haven't worked with it, nor read anything about it


>Victor A. Wagner, Jr.                Key fingerprint =  4D 20 EB F6 01 01 B0 69
                                      ^^^^^^^^^^^^^^^
Whether you know it or not, you certainly have worked with it :-)

>CFO Metadigm, Inc.                                      38 17 8D BF C8 46 E4 7A
>Vice-Chair Orange County (CA) Libertarian Party           http://www.lp.org/lp/
>The five most dangerous words in the English language: "There oughtta be a law"

 - Executioner/[Independent]
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PGP Signature: 67 35 1F 85 34 3D ED CC FD 87 01 22 A5 47 31 EA
Key available on request. 
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From: 0@0.0
Subject: Re: What is Checksum, CRC and MD5 hash???
Date: 1995/12/17
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