php - How to secure the sign up process if there is no ssl -
i building sign page user sign member, , wondering how keep user's password secure if have no ssl-server.
the way can imagine md5 encrypt user's password before sending server storing, , next time while in login page, password input md5 dynamic secret seed before sending server autheticate if user member.
is idea? suggestion? have other option?
thanks lot idea.
the problem need kind of shared secret between client , server possible eavesdropper not know able encrypt it. eavesdropper can listen traffic between client , server beforehand, have kind of chicken , egg situation.
only way out: use public/private key encryption. client encrypts password public key of server , sends it. 1 might open owner of private key, presumably server.
have @ http://www.jcryption.org, might want.
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