Rico Secada wrote:
On Thu, 10 Jan 2008 10:26:08 -0600
Ron <ronlists@skullsecurity.com> wrote:
Somebody here is developing a Web application that requires user
logins, but that is unable to store session information on the server
(don't ask me why, it's a long story). So here's what they propose:
Sorry, I can't help but to probe into the matter. If "somebody" is
creating a web application that requires user login, then that somebody
needs some way to store information on some kind of database on the
server, usernames, passwords etc. You cannot store this information on
the client side for later validation.
to take the username, hash of the password, and date the user logged
in, encrypt them with a strong encryption algorithm, and store them
in a cookie (along with a hash to ensure integrity).
"to take the username" if not stored on the server from where then?
What do you want to accomplish with this?
If you cannot store any information of any kind on the server, the
information that you store in a cookie is rather worthless.
Perhaps I have misunderstood you.
You're correct, the backend database stores that. However, that's all it
stores and changing the database isn't an option. And there is no
session functionality available.
So they are taking the username, password, and expiry time, encrypting
them, and putting them into the cookie. When the cookie is returned, it
decrypts the values, checks the username and password against the
database, and validates that it's still valid (ie, make sure the
username and password match, and that it's not expired yet).
Does that make sense?
Thanks to everybody who replied!
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