This paper presents an evaluation of five Round 2 Advanced Encryption Standard (AES) candidates from the viewpoint of their realization in a FPGA. After the analysis of the general characteristics of the algorithms a general cipher structure is defined. Using this structure, the suitability of available FPGA families is evaluated. Finally, three algorithms – RIJNDAEL [5], SERPENT [6] and TWOFIS...

Encryption algorithms commonly use table lookups to perform substitution, which is a confusion primitive. The use of table lookups in this way is especially common in the more recent encryption algorithms, such as the AES finalists like MARS and Twofish, and the AES winner, Rijndael. Workload characterization studies indicate that these algorithms spend a significant fraction of their execution...

We present a cross-table of almost all publicly known implementations of AES candidates, including the ones done by the authors. A short overview of our own implementations of Rijndael is given. The relative easiness of doing “the world best” implementations and a lot of gaps in the table force us to ask if there is enough information known to really decide which ciphers are fast and which are ...

Many digital services, such as confidential video conferencing, medical, military imaging systems and the rapid progress of Internet, require reliable security and encryption in real time to store and transmit these digital images/videos.In this paper, a parallel implementation of the advanced encryption standard (AES) using pipelining technique is proposed. For more security, a pseudo random s...

Low powered devices, such as smart phones, tablets and sensors, present a particular challenge for advanced encryption systems. In this paper, we present a new quasigroup block encryption system that has low memory and computational requirements and hence suitable for low powered devices.We compare its performance against Advanced Encryption Standard-256 (AES-256) bit algorithm using theNIST st...