VB integration/authentication

[kjetilpa]

Hi.
We need more information about authentication mechanism and
possibilities to let other systems do the authentication for Vbulletin 3.0.7.

The case is that we have a custom designed software that has a lot of
users already, and we do not want them to authenticate a second time
when entering the bulletin. What we would like to do is the possibility
to set a nickname in the custom software, and if that nickname is set,
the custom software should automatically sign the user on to vbulletin (insert information in the VB database)

I assume that VB systems support this out of the box, but we are
lacking technical documentation on how to do this.

Please give me information on how to use Vbulletin
API to solve this challenge it would be most pleasing.

[Andreas]

This is a FAQ.

[sql]SELECT userid FROM user WHERE username = 'username' AND password = MD5(CONCAT(MD5('password'), salt))[/sql]

If this does return a row username and password are valid.