No abstract

Burst mode" is a new cipher mode, which is devised dedicatedly for the high performance implementation of Advanced Encryption Standard (AES) and other next generation 128-bit block cipher algorithms. In comparison with the conventional modes, the burst mode achieves a considerable increase in the throughput by employing a novel stream cipher mechanism which can encrypt 64 plaintext blocks through 16 invocations of the block cipher encryption operation. This paper investigates the hardwarehoftware (HW/SW) codesign of the burst mode, to be implemented as an accelerator core running in parallel with a software-based block cipher. Implementation results show that the burst mode with the use of this hardware accelerator raises the speed of the software implementation of AES by four times, achieving the maximum rate of 1.3 Gbps.

A cipher core has been implemented, which is dedicated to a 64-bit block, 128-bit key, dynamically reconfigurable hardware-based cipher, called "Chameleon", in which two 32-cell, 8-context dynamically reconfigurable hardware units are employed to generate new subkeys for each of the 16 iterations in the encryption/decryption process. The proposed architecture has been implemented by 0.6 um CMOS 3LM technology, using 65.6K transistors and attaining a maximum throughput of 317.5 Mbps. The new approach demonstrates distinctive features of enhanced complexity and flexibility dedicatedly for embedded encryption/decryption applications in the mobile computing.

This paper describes a 64-bit block, 128-bit key, dynamically reconfigurable hardware-based cipher, called Chameleon, in which two 32-cell, 8-context dynamically reconfigurable hardware units are employed to generate new subkeys for each of the 16 iterations in the encryptioddecryption process. The proposed architecture has been implemented by the 0.6 p m CMOS 3LM technology, using 65.6K transistors and attaining a maximum throughput of 3 17.5 Mbps. The new approach demonstrates distinctive features of enhanced complexity and flexibility dedicatedly for embedded encryptioddecryption applications in the mobile computing.

ttttInstitute of MSP, University of the Philippines at Los Banos, Philippines AB TRACT "Burst mode" is a new cipfer mode, which is devised dedicatedly for the high performance implementation of Advanced Encryptio