Adaptive loop pipeline control mechanism for Coarse-Grained Reconfigurable Block Cipher Array. Issue 1 (July 2021)

• Record Type: Journal Article
• Authors: Qu, Tongzhou; Dai, Zibin; Lin, Chen; Yin, Anqi
• Is Part Of: Journal of physics. Volume 1971:Issue 1(2021)
• Publication Date: 2021-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1971/1/012051
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Coarse-grained Reconfigurable Array (CGRA) is a new processor architecture suitable for Block Cipher calculation. However, it has the problems of complex control mechanism and poor support for loop pipeline mapping. Based on the CGRA architecture designed for Block Cipher algorithms, this paper proposes a scenario jump model which can describe the process of loop pipeline running. Based on this model, a control structure supporting Block Cipher loop pipeline mapping was designed on the process platform CGCLA (Coarse Grain Cipher Logic Array), which could automatically complete the control functions described by virtual instructions in the model driven by the configuration flow to realize the adaptive control. Compared with similar process structures, CGCLA platform has more complete control functions. The mapping results of AES algorithm show that the proposed technique can achieve 2.15times performance improvement and reduce the amount of algorithm configuration information by about 25%.