In order to obtain the secret key, majority of physical attacks require knowledge plaintext or ciphertext, which may be unavailable cannot exploited. Blind are introduced do key recovery in circumstances where adversary has no direct access and ciphertext. A combination fault power can circumvent typical countermeasures this setting, for example, Fault Template Attack (FTA). However, FTA relies...

Contrast-based separation of sources have a number of advantages. Among others, they are optimal (in a precise sense) in presence of noise of unknown statistics. Here a new contrast is proposed that allows not only to obtain the optimal solution analytically, but also yields better performances in terms of variance of the estimated mixing matrix. This contrast needs source kurtosis to have the ...

The problem of input identiiability in blind deconvolution is considered, where the input belongs to a known discrete alphabet. Input identiiability is an algorithm independent property, which does not necessarily imply channel identiiability. Suucient conditions for input identiiability are derived in terms of algebraic relations on the observed output. It is shown how these new results relate...

In this paper we present a powerful technique for the blind extraction of Direct-Sequence Code-Division Multiple Access (DS-CDMA) signals from convolutive mixtures received by an antenna array. The technique is based on a generalization of the Canonical or Parallel Factor Decomposition (CANDECOMP/PARAFAC) in multilinear algebra. We present a bound on the number of users under which blind separa...

INFORMATION-THEORETIC APPROACH Anthony J. Bell and Terrence J. Sejnowski Computational Neurobiology Laboratory, The Salk Institute, 10010 N. Torrey Pines Road, La Jolla, California 92037