[16779] in cryptography@c2.net mail archive
Re: how to tell if decryption was successfull?
daemon@ATHENA.MIT.EDU (Matt Crawford)
Wed Feb 2 10:46:07 2005
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Wed, 02 Feb 2005 08:11:43 -0600
From: Matt Crawford <crawdad@fnal.gov>
In-reply-to: <41FFD8A7.6090200@terra.com.br>
To: Andreas <ahasenack@terra.com.br>
Cc: cryptography@metzdowd.com
On Feb 1, 2005, at 13:29, Andreas wrote:
> I was wondering how can one tell if some data was successfully
> decrypted. Isn't there an assumption going on about what the cleartext
> data should be? Text? Image? ZIP file? Ziped jpeg? Another cyphertext?
> rot-13?
Embedded checksums or hash codes added before encryption. The types of
those checks must not interact badly with the encryption.
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