Today’s cryptanalysis on symmetric key cryptography is encouraging the use of larger key sizes and complex algorithms to achieve an unbreakable state. However, this leads an increase in computational complexity. This has promoted many researchers to develop high-performance symmetric key cryptography schemes using approaches such as the use of high-end computing hardware. Peer-to-peer (P2P) or ...

. In Moni Naor, editor, Theory of Cryptography, First Theory of Cryp-tography Conference, TCC 2004, Cambridge, MA, USA, February 19-21, 2004,Proceedings, volume 2951 of Lecture Notes in Computer Science, pages 278–296.Springer, 2004.55. Andrew Moss, Elisabeth Oswald, Dan Page, and Michael Tunstall. Compiler assisted masking. In Prouff and Schaumont [66], pages 58–75.56. Moni...

From 05.01.2014 to 10.01.2014, the Seminar 14021 in Symmetric Cryptography was held in Schloss Dagstuhl – Leibniz Center for Informatics. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put together in this pa...

Lattice gas cellular automata (Lgca) are particular cellular automata that imitate the behavior of particles moving on a lattice. We used a particular set of Lgca rules, called hpp, to mix bits in data blocks and obtain a symmetric cryptographic algorithm. The encryption and decryption keys are the positions of perturbation sites on the lattice (walls). Basically, this paper presents an origina...

From .. to .., the Dagstuhl Seminar 07021 Symmetric Cryptography was held in the International Conference and Research Center (IBFI), Schloss Dagstuhl. During the seminar, several participants presented their current research, and ongoing work and open problems were discussed. Abstracts of the presentations given during the seminar as well as abstracts of seminar results and ideas are put toget...

7.1 Cryptography . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 7.1.1 Overview of Cryptography . . . . . . . . . . . 130 7.1.2 Symmetric-Key Cryptography . . . . . . . . 130 7.1.3 Substitution and Transposition Techniques . . . . . . . . . . . . . . . . . . . . . . . . . 131 7.1.4 Data Encryption Standard (DES) . . . . . 133 7.1.5 Advanced Encryption Standard (AES) . 134 7.1.6 Public...

Once an application steps out of the bounds of a single-computer box, its external communication is immediately exposed to a multitude of outside observers with various intentions, good or bad. In order to protect sensitive data while these are en route, applications invoke different methods. In today's world, most of the means of secure data and code storage and distribution rely on using cryp...