[Busec] Busec Digest, Vol 68, Issue 7

Aanchal Malhotra aanchal4 at bu.edu
Mon Aug 29 10:03:54 EDT 2016


Hey Folks,

Symmetric crypto reading group is cancelled for today. We will try to
reschedule it soon in the coming weeks. We are really sorry for the
inconvenience!

Best,
Aanchal Malhotra.

On Fri, Aug 26, 2016 at 12:00 PM, <busec-request at cs.bu.edu> wrote:

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> Today's Topics:
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>    1. symmetric crypto reading group: 1st meeting Monday 11am!
>       (Sharon Goldberg)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 25 Aug 2016 14:18:59 -0400
> From: Sharon Goldberg <goldbe at cs.bu.edu>
> To: busec <busec at cs.bu.edu>
> Subject: [Busec] symmetric crypto reading group: 1st meeting Monday
>         11am!
> Message-ID:
>         <CAJHGrrRZHKpwBan53bKycuUtct9HGEUJj5_YTzsQd-VfthwhMQ at mail.
> gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi busec,
>
> Several of us have decided that we want to get up to date on the latest in
> symmetric crypto modes of operation and attacks. To that end on Monday at
> 11am, Aanchal Malhotra will be presenting a new paper attacking GCM, in an
> informal reading group.  Abstract and link to paper below. On Monday we can
> discuss the logistics of doing this more regularly during the upcoming
> semester.
>
> See you then!
> Sharon
>
> "Nonce-Disrespecting Adversaries: Practical Forgery Attacks on GCM in TLS."
> Monday, August 25, 2016 @ 11AM
> MCS148
>
> AES-GCM is a block-cipher mode of operation which provides authenticated
> encryption with associated data (AEAD). Despite currently being the most
> popular TLS cipher, AES-GCM is not well received by the cryptographic
> community. Niels Ferguson described potential attacks on GCM with short
> authentication tags, Antoine Joux published a critical comment during the
> standardization process of GCM, and several other cryptographers recently
> described GCM as ?fragile?. This paper investigates the nonce reuse issues
> with the GCM block cipher mode as used in TLS on AES-GCM.
>
> https://eprint.iacr.org/2016/475.pdf
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