Topic
Cipher
About: Cipher is a research topic. Over the lifetime, 9409 publications have been published within this topic receiving 110309 citations. The topic is also known as: cypher & cryptographic algorithm.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: This article describes an innovative form of cipher design based on the use of recurrent neural networks that is robust in resisting different cryptanalysis attacks and provides efficient data integrity and authentication services.
Abstract: In this article, we describe an innovative form of cipher design based on the use of recurrent neural networks. The well-known characteristics of neural networks, such as parallel distributed structure, high computational power, ability to learn and represent knowledge as a black box, are successfully applied to cryptography. The proposed cipher has a relatively simple architecture and, by incorporating neural networks, it releases the constraint on the length of the secret key. The design of the symmetric cipher is described in detail and its security is analyzed. The cipher is robust in resisting different cryptanalysis attacks and provides efficient data integrity and authentication services. Simulation results are presented to validate the effectiveness of the proposed cipher design.
28 citations
••
05 Apr 2004
TL;DR: In this article, the authors discuss the suitability of bitwise permutations for cryptographic primitives and discuss the use of these new operations for cryptographic purposes in the context of processor architectures.
Abstract: New and emerging applications can change the mix of operations commonly used within computer architectures. It is sometimes surprising when instruction-set architecture (ISA) innovations intended for one purpose are used for other (initially unintended) purposes. We consider recent proposals for the processor support of families of bit-level permutations. From a processor architecture point of view, the ability to support very fast bit-level permutations may be viewed as a further validation of the basic word-orientation of processors, and their ability to support next-generation secure multimedia processing. However, bitwise permutations are also fundamental operations in many cryptographic primitives and we discuss the suitability of these new operations for cryptographic purposes.
28 citations
•
06 Aug 2012
TL;DR: This paper derives for the first time the exact number of theoretical cryptographic key settings and machine configurations for the Enigma cipher machine and calculates the number of practical key settings Allied cryptanalysts were faced with on a daily basis throughout World War II.
Abstract: The Enigma cipher machine had the confidence of German forces who depended upon its security. This misplaced confidence was due in part to the large key space the machine provided. This paper derives for the first time the exact number of theoretical cryptographic key settings and machine configurations for the Enigma cipher machine. It also calculates the number of practical key settings Allied cryptanalysts were faced with on a daily basis throughout World War II. Finally, it shows the relative contribution each component of the Enigma added to the overall strength of the machine.
28 citations
••
04 Mar 2020TL;DR: In this paper, the authors present new attacks on round-reduced PRINCE including the ones which won the challenge in the 6 and 8-round categories. And they also describe heuristic methods used to find practical SAT-based and differential attacks.
Abstract: NXP Semiconductors and its academic partners challenged the cryptographic community with finding practical attacks on the block cipher they designed, PRINCE. Instead of trying to attack as many rounds as possible using attacks which are usually impractical despite being faster than brute-force, the challenge invites cryptographers to find practical attacks and encourages them to actually implement them. In this paper, we present new attacks on round-reduced PRINCE including the ones which won the challenge in the 6 and 8-round categories — the highest for which winners were identified. Our first attacks rely on a meet-in-the-middle approach and break up to 10 rounds of the cipher. We also describe heuristic methods we used to find practical SAT-based and differential attacks.
28 citations
••
TL;DR: The present study adopts a spatiotemporal mixed linear-nonlinear coupling with the logistic-sine system (SMLNLC-LSS) for chaotic orbit generation that uses coveted cryptographic properties contrasted with the existing chaotic systems.
28 citations