2DES and Meet in the Middle Attack

[abo-alhosam]

شرحك فناااااان، لا تحرمنا من هالعلم الله يبارك فيك ويزيدك، شككككرا بروف

[terryloo]

Clear explaination of Meet in the Middle ! Thanks

[iosifpuha]

You explained it really really well, but I am left with a doubt: in DES the computational cost of a successful brute force attack would be 2^56 (because there's 2^56 combinations to try), but in 2DES it's 2^56 + 2^56, am I right? You said it's basically the same as DES, but you have to first try the 2^56 combinations with the plain text and record the intermediate outputs and then do the same thing again with the cipher text and record the intermediate output, right?

[dinhomhm]

wonderful explanation, thank you very much

[churchmankassym]

Can you please explain how MITM is used to attack hash functions?