Hi, 

I don't know if that is of any interest but someone around here might care 
about the fact that Sage was probably the most mentioned (and cited) 
mathematics software at the "First Conference for Symbolic Computation and 
Cryptography" (SCC 2008) in Beijing.

Specifically, these authors/papers mentioned Sage:

* Tobias Eibach and Gunnar Völkel: Optimising Gröbner Bases on Bivium (used 
Sage to implement attack)
* Burçin Eröcal: SCrypt: Using Symbolic Computation to Bridge the Gap Between 
Algebra and Cryptography (module for Sage)
* Ralf-Philipp Weinmann and Johannes Buchmann: Distributed Memory Computation 
of Row-Reduced Echelon Forms over Finite Fields (benchmarked against Sage)
* Yours truly and Carlos Cid: Algebraic Techniques in Differential 
Cryptanalysis (used Sage to implement attack)

 (... yes, I know that 3 out of 4 are Sage developers, but still ...)

Another thing:Two talks dealt with Braid group cryptography, namely:

* Robert Gilman, Alex D. Miasnikov, Alexei G. Myasnikov and Alexander Ushakov: 
New Developments in Commutator Key Exchange
* Alex D. Myasnikov and Alexander Ushakov: Cryptanalysis of the 
Anshel-Anshel-Goldfeld-Lemieux Key Agreement Protocol

The group developed a C++ library CRAG:

"""
The Cryptography And Groups (CRAG) Library provides an environment to test 
cryptographic protocols constructed from non-commutative groups, for example 
the braid group. The Library is written in C++ and provides an interface and 
routines for computations. There are implementations of basic algebraic 
objects like words, maps and subgroups. We plan to continually expand the 
list of group-theoretic algorithms implemented in the library. In addition 
the Library will contain classes and routines implementing non-classical 
heuristic approaches and tools to perform statistical and exploratory 
analysis of algebraic data. Together with the C++ source code CRAG contains 
interface to Python scripting language. 
"""

 http://www.acc.stevens.edu/downloads.php

I don't know much about group theory but still I figured someone might find it 
interesting and is able to evaluate if it could be a good addition to Sage.

Cheers,
Martin

-- 
name: Martin Albrecht
_pgp: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99
_www: http://www.informatik.uni-bremen.de/~malb
_jab: [EMAIL PROTECTED]


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