Tips and Tricks » hashing https://legend.ws/blog Random tech ramblings Thu, 19 Jul 2012 16:10:15 +0000 en-US hourly 1 https://wordpress.org/?v=3.4.2 MySQL password hashing https://legend.ws/blog/tips-tricks/mysql-password-hashing/ https://legend.ws/blog/tips-tricks/mysql-password-hashing/#comments Fri, 02 Jan 2009 18:55:53 +0000 admin https://legend.ws/blog/?p=35 Whenever you upgrade your MySQL installation, make sure to upgrade any client that uses it.

In some cases, clients that use a version prior to 4.1 will have a problem authenticating against the MySQL database if the latter has a post 4.1 version.

The trick is that after 4.1 (i.e. 4.11 and up), MySQL changed the way it stores the passwords in the user table inside the mysql system database.
Password hashes are now 41 bytes long instead of the old 16 bytes.

So for example, if your MySQL server is 5.0, while your php-mysql library is 4.1, your web …

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