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[liberationtech] [cryptography] New Anonymity Network for Short Messages

Eugen Leitl eugen at
Wed Jun 12 03:16:52 PDT 2013

----- Forwarded message from Peter Gutmann <pgut001 at> -----

Date: Wed, 12 Jun 2013 15:09:15 +1200
From: Peter Gutmann <pgut001 at>
To: cryptography at, eugen at
Subject: Re: [cryptography] [liberationtech] New Anonymity Network for Short Messages

Eugen Leitl <eugen at> either writes or quotes:
>----- Forwarded message from Sean Cassidy <sean.a.cassidy at> -----
>> - Any specific reason you picked CTR?
>CTR is widely recommended. Cryptography Engineering specifically recommends

Who recommends it (apart from CE?).  I've seen it warned about in a number of
places, and I recommend (strongly) against it in my (still in-progress) book.
It's the most dangerous encryption mode since RC4.

More specifically, it's RC4 all over again.  There's a reason why that was
dropped almost everywhere, for example the SDL explicitly bans it, and there's
even a Visual Studio tool that scans your code and complains about its use.


----- End forwarded message -----
Eugen* Leitl <a href="">leitl</a>
ICBM: 48.07100, 11.36820
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