[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <CANO7a6yRCzYATMC8G2ye7FwSxi8CcySuR8iY00ANQrSNZ9Y62Q@mail.gmail.com>
Date: Sat, 7 Apr 2012 12:29:44 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: OpenSSL AES strange problem (first block is decrypted wrongly)
On Sat, Apr 7, 2012 at 12:07 PM, Dhiru Kholia <dhiru.kholia@...il.com> wrote:
> Hi,
>
> I am trying to decrypt two blocks of encrypted data using OpenSSL AES
> (in CBC mode). Second block is decrypted correctly but first block is
> strangely wrong. Any ideas what is going on?. Can someone give it a
> shot?
I figured it out. The iv was wrong. Previous call to AES_cbc_encrypt
changed the iv to a wrong value. Hence, the first block was decrypted
wrongly. Fixed by copying salt into iv every time before calling
AES_cbc_encrypt.
--
Cheers,
Dhiru
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
