Hello William,

http://www.cypherspace.org/~adam/rsa/crack.html

----- Original Message ----- 
From: "William Bartholomew" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, October 20, 2002 5:03 PM
Subject: General Password Hash Question


| This is a general crypto question but not Crypto++ specific so I hope
| nobody minds (is there a better mailing list for crypto questions?).
| 
| When hashing passwords to store in a database for a user login system
| I've heard many recommendations that you should prepend a salt onto the
| beginning of the clear-text. Just a couple of questions regarding this:
| 
| 1. What is the primary reason to do this?
| 
| 2. Should the salt be different for each user?
| 
| 3. Do you just store the salt in clear-text with the user record?
| 
| 4. What length salt would be suitable for most purposes?
| 
| 
| Thanks.
| 
| 
| Regards,
| 
| William Bartholomew
| Internet Developer
| Orli-TECH Pty Ltd
| "Your Innovative e-Business Partner"
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