7 Result(s)
within
Erik Zenner
Cryptology
Management of Computing and Information Systems
Systems and Data Security
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Chapter and Conference Paper
Ripple: Overview and Outlook
Ripple is a payment system and a digital currency which evolved completely independently of Bitcoin. Although Ripple holds the second highest market cap after Bitcoin, there are surprisingly no studies which a...
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Chapter and Conference Paper
Towards Symbolic Encryption Schemes
Symbolic encryption, in the style of Dolev-Yao models, is ubiquitous in formal security models. In its common use, encryption on a whole message is specified as a single monolithic block. From a cryptographic ...
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Chapter and Conference Paper
Differential Cryptanalysis of Round-Reduced PRINTcipher: Computing Roots of Permutations
At CHES 2010, the new block cipher PRINTcipher was presented. In addition to using an xor round key as is common practice for round-based block ciphers, PRINTcipher also uses key-dependent permutations. While thi...
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Chapter and Conference Paper
A Cryptanalysis of PRINTcipher: The Invariant Subspace Attack
At CHES 2010, the new block cipher PRINTcipher was presented as a light-weight encryption solution for printable circuits [15]. The best attack to date is a differential attack [1] that breaks less than half of t...
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Chapter and Conference Paper
Cryptanalysis of ARMADILLO2
ARMADILLO2 is the recommended variant of a multipurpose cryptographic primitive dedicated to hardware which has been proposed by Badel et al. in [1]. In this paper, we describe a meet-in-the-middle technique r...
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Chapter and Conference Paper
Concrete Security for Entity Recognition: The Jane Doe Protocol
Entity recognition does not ask whether the message is from some entity X, just whether a message is from the same entity as a previous message. This turns turns out to be very useful for low-end devices. The cur...
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Chapter and Conference Paper
Improved Cryptanalysis of the Self-Shrinking Generator
We propose a new attack on the self-shrinking generator [8]. The attack is based on a backtracking algorithm and will reconstruct the key from a short sequence of known keystream bits. We give both mathematical a...
