Parallelism technique for speeded-up and low-powered cryptographic primitives
Harris E. Michail, Athanasios P. Kakarountas, C.E. Goutis · 2005
The main applications of the hash functions are met in the fields of communication integrity and signature authentication. A hash function is utilized in the security layer of every communication protocol. However, as protocols evolve and new high-performance applications appear, the throughput of most hash functions seems to reach to a limit. Furthermore, due to the tendency of the market to minimize devices' size and increase their autonomy to make them portable, power issues have also to be considered. In this work a new technique is presented for increasing frequency and throughput of all widely used hash functions - and those that will be used in the future- hash functions such as MD-5, SHA-1, RIPEMD (all versions), SHA-256, SHA-384, and SHA-512 etc. Comparing to conventional pipelined implementations of hash functions the proposed parallelism technique leads to a 33%-50% higher throughput.