On Dec 20, 2011, at 4:25 PM, MB Software Solutions, LLC wrote:

> That's what I'm attempting to do....but with a checksum. So I should

> use the HASH() function instead and store the 64 byte character string

> instead of the 10 digit # generated from the checksum?

Depends on what you're using to generate the checksum. With only 10 digits it sounds like a high probability of collision. Also, how different would the checksums for 'aaaaaaaa' and 'aaaaaaab' be?

I used to use MD5 hash algorithms, but those are considered broken by security experts, so I switched to the SHA-2 hashes.

-- Ed Leafe

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