The Symmetrical Block Rsb-32 Encryption Algorithm With Dynamic Encryption Settings

New Block Encryption Algorithm MISTY

We propose secret-key cryptosystems MISTY1 andMISTY2, which are block ciphers with a 128-bit key, a 64-bit block and a variable number of rounds. MISTY is a generic name for MISTY1 and MISTY2. They are designed on the basis of the theory of provable security against di erential and linear cryptanalysis, and moreover they realize high speed encryption on hardware platforms as well as on software...

Cryptanalysis of GSM encryption algorithm A5/1

The A5/1 algorithm is one of the most famous stream cipher algorithms used for over-the-air communication privacy in GSM. The purpose of this paper is to analyze several weaknesses of A5/1, including an improvement to an attack and investigation of the A5/1 state transition. Biham and Dunkelman proposed an attack on A5/1 with a time and data complexity of 239.91and 221.1, ...

A New Fast Data Encryption Algorithm (FDE)

Logistic map as a block encryption algorithm

We discuss the relationship between cryptography and chaos theory, and similarities of their crucial concepts such as mixing property and sensitivity to changes in initial conditions and parameters. A systematic procedure for design of encryption algorithms based on chaotic maps is suggested. We present an example based on logistic map.  2001 Elsevier Science B.V. All rights reserved.

A New Fast Data Encryption Algorithm (FDE)