Optimal Datapath Design for a Cryptographic Processor: The Blowfish Algorithm

Malaysian Journal of Computer Science

James M Noras¹  Noohul Basheer Zain Ali¹ 

关键词: Digital design;    Cryptography;    Data encryption;    Pipelining;    Programmable logic;    Feistel network;    Adders;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: University of Malaya * Faculty of Computer Science and Information Technology

【 摘 要 】

BLOWFISH is a fast cryptographic software algorithm, using the operations of addition, XOR and look-up tables.This paper reports on the design of a hardware implementation for greater speed, with pipelining and different bit-widths of registers and processing units.An 8-bit parallel data-path gives the best performance, mapping into 4 independent 8-bit modules, with a throughput at least 4 times greater than with 32-bit hardware.The design is suitable for implementation using small amounts of RAM and programmable logic.

【 授权许可】

Unknown