14 search results - page 1 / 3 » Algebraic Attacks on the Courtois Toy Cipher |
CRYPTOLOGIA
2008
13 years 7 months ago
2008
DAGSTUHL
2007
13 years 9 months ago
2007
In this paper we give a specification of a new block cipher that can be called the Courtois Toy Cipher (CTC). It is quite simple, and yet very much like any other known block ciph...
ICISC
2004
13 years 9 months ago
2004
Algebraic attacks on stream ciphers [14] recover the key by solving an overdefined system of multivariate equations. Such attacks can break several interesting cases of LFSR-based ...
22
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AES
2004
Springer
14 years 28 days ago
2004
Springer
This paper is motivated by the design of AES. We consider a broader question of cryptanalysis of block ciphers having very good non-linearity and diffusion. Can we expect anyway, ...
CRYPTO
2003
Springer
14 years 23 days ago
2003
Springer
Many popular stream ciphers apply a filter/combiner to the state of one or several LFSRs. Algebraic attacks on such ciphers [10, 11] are possible, if there is a multivariate relat...