Is SHA 2 suitable for key derivation? – crypto.stackexchange.com

Is SHA 2 suitable for key derivation? – crypto.stackexchange.com

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Let's imagine that I've got a number modulo n given by DH protocol. I want to use it as a key for AES encryption. So I have to cut this number to fit it in AES (128,192 or 256 bits). I can use hash ...

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