Concept

Format-preserving encryption

Publications associées (41)

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An Analysis of the Blockcipher-Based Hash Functions from PGV

Martijn Stam

Preneel, Govaerts, and Vandewalle (1993) considered the 64 most basic ways to construct a hash function H: {0, 1}*->{0, 1}(n) from a blockcipher E: {0, 1}(n) x {0, 1}(n)->{0,1}(n). They regarded 12 of these 64 schemes as secure, though no proofs or formal ...

Springer Verlag2010

Self-Scaling Stream Processing: a Bio-Inspired Approach to Resource Allocation through Dynamic Task Replication

Pierre-André Mudry, Julien Ruffin

In this article, we show how the use of a bio-inspired dynamic task replication algorithm, in the context of stream processing, can be used to significantly improve the performance of embedded programs. We also show that this programming methodology, which ...

Ieee Computer Soc Press, Customer Service Center, Po Box 3014, 10662 Los Vaqueros Circle, Los Alamitos, Ca 90720-1264 Usa2009

Dial C for Cipher

Thomas Baignères

We introduce C, a practical provably secure block cipher with a slow key schedule. C is based on the same structure as AES but uses independent random substitution boxes instead of a fixed one. Its key schedule is based on the Blum-Blum-Shub pseudo-random ...

Springer2007

KFC - The Krazy Feistel Cipher

Thomas Baignères

We introduce KFC, a block cipher based on a three round Feistel scheme. Each of the three round functions has an SPN-like structure for which we can either compute or bound the advantage of the best d-limited adaptive distinguisher, for any value of d. Usi ...

2006

Decorrelation over Infinite Domains: the Encrypted CBC-MAC Case

Serge Vaudenay

Decorrelation theory has recently been proposed in order to address the security of block ciphers and other cryptographic primitives over a finite domain. We show here how to extend it to infinite domains, which can be used in the Message Authentication Co ...

2001

Decorrelation over Infinite Domains: the Encrypted CBC-MAC Case

Serge Vaudenay

2000

On the pseudorandomness of top-level schemes of block ciphers

Serge Vaudenay

Block ciphers are usually based on one top-level scheme into which we plug Âround functionsÂ. To analyze security, it is important to study the intrinsic security provided by the top-level scheme from the viewpoint of randomness: given a block cipher in ...

2000

Comparison of the Randomness Provided by Some AES Candidates

Serge Vaudenay

Using the decorrelation techniques we compare the randomness of three schemes used in the AES candidates. The target schemes are the original Feistel scheme and two modified Feistel schemes: the MARS-like structure and the CAST256-like structure. As a resu ...

1999

On the Lai-Massey scheme

Serge Vaudenay

Constructing a block cipher requires us to define a random permutation, which is usually performed by the Feistel scheme and its variants. In this paper we investigate the Lai-Massey scheme which was used in IDEA. We show that we cannot use it Âas isÂ in ...

1999

Adaptive-Attack Norm for Decorrelation and Super-Pseudorandomness

Serge Vaudenay

In previous work, security results of decorrelation theory was based on the infinity-associated matrix norm. This enables to prove that decorrelation provides security against non-adaptive iterated attacks. In this paper we define a new matrix norm dedicat ...

1999