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Is it safe to hold key file's hash in application
@PaŭloEbermann: AES key, Encrypting/Decrypting files that application works with (also application configuration file); for #1) identifing it on a USB storage #2) being sure that it is my key
Is it safe to use file's hash as IV?
I'm using CBC but how file's hash is predictable? the attacker doesn't have original file to generate hash!