security - Secure Ajax with Flash -


in order secure ajax requests, ran bar-zik sugested "create small flash file receive data, salt , encrypt md5. sent server. attacker able see data encrypted." has done want share code world? :-)

mr ran bar-zik mistaken. security system has proposed violates cwe-602 , "(in)security though obscurity".

in short problem server providing data client side application. client can whatever pleases. can modify javascript code or intercept , modify communications using tamperdata or burp proxy. flash application can decompiled , secrets stored in memory can obtained debugger ollydbg. there no solution problem.


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