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Merely stacking weak crypto (this is a very well-done weak crypto) inside strong crypto does not add any significant strength to the strong crypto. I've studied interleaving crypto, and there are some cases where interleaved weak crypto would significantly strenghten already strong crypto, but AES is too hard for me to interleave without breaking it. Now ...


There are two possibilities here: AES is secure, in which case no one can open your encryption without knowing your keys, regardless of whether you layer anything else on top of AES. AES is not secure and someone knows how to break it. In that case the security of your encryption might only be as strong as the second layer of encryption. In neither case ...

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