Titlebook: Research in Cryptology; 4th Western European Frederik Armknecht,Stefan Lucks Conference proceedings 2012 Springer-Verlag Berlin Heidelberg

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RSA Vulnerabilities with Small Prime Difference,ore, we adapt the technique of unravelled linearization for constructing lattices and although the adapted unravelled linearization is only a method for generating lattices in more elegant way, we yield a benefit compared to known bounds.

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Broadcast Attacks against Code-Based Schemes,e their security is well understood. While there is strong evidence that cryptosystems like McEliece and Niederreiter are secure, they have certain weaknesses when used without semantic conversions. An example is a broadcast scenario where the same message is send to different users, encrypted with

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On the Security of , against Side Channel Cube Attacks, sensor nodes. In this paper, we address the security of the . cipher against side channel cube attacks under the single-bit-leakage model. To this end, we describe an efficient term-by-term quadraticity test for extracting simple quadratic equations besides linear ones, obtainable from the original

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Breaking DVB-CSA,ng Algorithm (DVB-CSA). This is commonly used for PayTV or for other conditional access scenarios. While DVB-CSA support 64 bit keys, many stations use only 48 bits of entropy for the key and 16 bits are used as a checksum. In this paper, we outline a time-memory-tradeoff attack against DVB-CSA, usi