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I am in the process of studying deep about SessionID's in PHP. I have thought about encrypting SESSID's and decrypting them whenever needed in order for extra security. The only problem is that I dont know where to start. Does anyone know any good references or ways to go about this technique.
mycrpt is a possibility for bi-directional encryption/decryption...
Otherwise MD5() is fine for one way encnryption (like a password stored in a db...encrypt in on registration and then compare an md5 encrypted user submitted password to the db value