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List:       gcrypt-devel
Subject:    IV handling in symmetric modes in libgcrypt
From:       Damian Vizar <damian.vizar () epfl ! ch>
Date:       2017-02-02 16:06:52
Message-ID: 34055b1c-9e65-1875-33ce-8bbefb48847b () epfl ! ch
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Hi,

I have a fairly simple question: for the symmetric blockcipher modes of 
operation (I am mostly interested in AEAD modes), does the IV have to be 
re-set manually for every encryption, or is there some mechanism that 
updates the IV automatically? (E.g. by counter-like incrementation).

I tried to figure it out on my own, but I am not familiar with the code 
of libgcrypt.

Thanks,
Damian

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