Cool module. But I still think it leaves the cookie vulnerable to sniffing, which is all that is needed. If I can replicate your cookie, encrypted or not, I can pass it to the server as if I were you and more likely than not the server will believe everything is fine. That's the reason we have to encrypt the transmission itself and not merely the contents of the cookie. That way an attacker has almost no chance to guess which parts of the transmission are the cookie and re-use them.

In reply to (ichimunki) re x 2: Is this use of crypt() appropriate? by ichimunki
in thread Is this use of crypt() appropriate? by Anonymous Monk

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