... algorithm, 247 , 43 0, 43 1sha1() function, 252, 43 4, 43 7two-way encryption, 43 0, 43 8 44 2decrypting password, 44 1 44 2registering new users, 43 9 44 0user authentication with, 44 0 44 1using encrypted ... extra work, but it’s better to be safe than sorry. PHP SOLUTIONS: DYNAMIC WEB DESIGN MADE EASY 43 47311ch15.qxd 9/25/06 1:50 PM Page 43 4Table 14- 4. Settings for the categories tableField Type ... {$_SESSION['authenticated'] = 'Jethro Tull'; PHP SOLUTIONS: DYNAMIC WEB DESIGN MADE EASY 44 07311ch15.qxd 9/25/06 1:50 PM Page 44 0If you run this query in the SQL tab of phpMyAdmin, it produces the following...