Improved DES on Heterogeneous Multi-core Architecture

Abstract

DES (Data Encryption Standard) is one of the most classical algorithms of cryptography and its higher security makes it hard to be broke for a very long time. However, along with the constant development of computer technology, especially in the 21st century, DES cannot be applied widely because of its low efficiency. Recently, the novel heterogeneous multi-core architecture represented by APU (Accelerated Processing Unit), provides a new solution for the above problems. APU integrates CPU and GPU in a groundbreaking manner and makes the algorithm to make full use of the performance advantage of heterogeneous multi-core system by realizing the HSA (Heterogeneous System Architecture) standard. This paper realizes DES on the fresh APU processor. By analyzing the performance, two kinds of improved schemes are proposed. The experimental results show that the running efficiency of algorithm can be greatly improved by using APU with reasonable optimization. In the same way, the other DES-like algorithm would also be optimized on these heterogeneous multi-core architecture.