Cryptography is still Difficult to Implement

This is a recurring theme (see eg. this older post), how difficult it is to implement Cryptography in the “right” way. It requires a lot of knowledge and expertise in Cryptography, programming skills are not enough.

Recently I read this article “PRACTICAL BRUTEFORCE OF AES-1024 MILITARY GRADE ENCRYPTION” by Kudelski Security Research, in which they show how it was possible to brute force what was called “AES-1024 military grade encryption“. AES is not broken (and “AES-1024” does not really stand for AES with 1024-bit keys) but the main problem was the custom procedure adopted to transform a user chosen password into an AES encrypting key.

Which again shows how it is difficult to implement Cryptography to attain the expected security goals.

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