On 16-Aug-2013, at 7:49 AM, Unga <unga...@yahoo.com> wrote:

> Hi all
>
> I have a requirement to encrypt files, in such a way identical files should 
> generate identical ciphertexts.
>
> I plan to use aes-256-cbc cipher with 128-byte long non-guessable password 
> per input file. Identical input files will be provided with identical 
> passwords.
>
> 1. Is it no salt the way forward for me?
>
>
Identical salts(ivs) should work. No salt works as well.

Not sure what the requirement is here. The very point of crypto is
that u dont leak any info at any cost.
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