Download Security Engineering and Intelligence Informatics: CD-ARES by Jiageng Chen, Atsuko Miyaji (auth.), Alfredo Cuzzocrea, PDF

By Jiageng Chen, Atsuko Miyaji (auth.), Alfredo Cuzzocrea, Christian Kittl, Dimitris E. Simos, Edgar Weippl, Lida Xu (eds.)

This quantity constitutes the refereed court cases of 2 workshops: the second one overseas Workshop on sleek Cryptography and safety Engineering (MoCrySEn 2013) and the 3rd overseas Workshop on safety and Cognitive Informatics for native land safeguard (SeCIHD 2013) held in the framework of the IFIP 8.4, 8.9, TC five overseas Cross-Domain convention, CD-ARES 2013, in Regensburg, Germany, in September 2013. The sixteen revised papers offered at MoCrySEn 2013 have been conscientiously reviewed and chosen from 30 submissions. They take care of symmetric-key cryptography, public-key cryptography, algorithmic cryptanalysis, software program and implementation of cryptographic algorithms, database encryption, and interplay among cryptographic thought and implementation matters. The 15 papers awarded at SeCIHD 2013 are equipped in topical sections on cyber safeguard and dependability, community defense and privateness, and multimedia expertise for place of birth defense.

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Extra info for Security Engineering and Intelligence Informatics: CD-ARES 2013 Workshops: MoCrySEn and SeCIHD, Regensburg, Germany, September 2-6, 2013. Proceedings

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Definition 1. Let F be a finite field and p and q be two integers. Let x → M × x be a mapping from Fp to Fq defined by the q × p matrix M . e. a linear code of dimension p, length p + q and minimal distance q + 1. An MDS matrix provides diffusion properties that have useful applications in cryptography. The idea comes from coding theory, in particular from maximum distance separable codes (MDS codes). In this context we state two important theorems of Coding Theory. Theorem 1. [14, page 33] If C is an [n, k, d] code, then n − k ≥ d − 1.

Any user can compute an aggregated tag tag =Agg(tagi1 , . . , tagij ) by using only tags. 1 Then, the user transmits (M, tag) to R via an insecure channel. 4. Verification. Suppose that R has received (M, tag) via an insecure channel. R checks the validity of tag by a verification-key ev : if Vrfy(M, tag, ev ) = true, then R accepts (M, tag) as valid, and rejects it otherwise. In the model of aggregate A-codes, the following correctness condition is required to hold: for all possible mi ∈ M, ei ∈ Ei (1 ≤ i ≤ n), and ev ∈ ER , if tagi =Auth i (mi , ei ) for each Ti ∈ S and tag =Agg(tagi1 , .

We concentrate on z1 , z3 ∈ {α, α2 , α + 1} for better hardware implementation, where α is the root of constructing polynomial of F2n for different n. Here z0 = 1. Serial(1, z1, 1, z3 )−1 is as defined in equation 1 with d = 4. So the hardware footprint for decryption is as good as that of encryption circuit in Substitution Permutation Networks (SPNs). In this Subsection we will construct MDS matrices for better hardware footprint by letting z1 , z3 ∈ {α, α2 } or z1 , z3 ∈ {α, α + 1} and ignore the case when z0 , z3 ∈ {α2 , α + 1}.

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