09-20-2007, 11:38 AM
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#3 (permalink)
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La Vida es Sueño
Join Date: Sep 2007
Location: Oldham
Posts: 2,258
Thanks: 90
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It's just a case of finding that nice comfort zone between the column length and being able to generate MD5 and SHA1 strings on-the-fly by prepending salts as well. To be fair a 32 bit string would be somewhat overkill, 5 is a nice number because it adds thousands of more possibilities to being able to generate the same string.
For instance, if spider is our common word and we want to generate the hash string for spider with salts prepended:
- a - spider
- A - spider
- aa - spider
- AA - spider
- Aa - spider
- aA - spider
- etc...
As you can see, even 2 is going to give you a lot of possibilities.
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