PRESENT encryption algorithm implementation method and system based on coarse-grained reconfigurable computing unit

Abstract

The invention provides a PRESENT encryption algorithm system based on a coarse-grained reconfigurable computing unit. The PRESENT encryption algorithm system comprises a reconfigurable configuration system, a reconfigurable data path, a computing module, a main control microprocessor and a system bus, the reconfigurable configuration system comprises a configuration information initialization interface. The reconfigurable data path and calculation module comprises a reconfigurable calculation array, a register channel, an intermediate result storage unit, an input first-in first-out register set and an output first-in first-out register set. Wherein the reconfigurable computing array comprises a reconfigurable computing unit block, and the reconfigurable computing unit block comprises multiple rows of operators, a read control module and a write control module; according to the invention, efficient operation of the PRESENT encryption algorithm can be realized.

Description

technical field [0001] The invention relates to the field of embedded reconfigurable systems, in particular to a large-scale coarse-grained reconfigurable computing system and a processing method thereof applied in the field of information security. Background technique [0002] The implementation of cryptographic algorithms in the information field usually adopts two schemes: general purpose processor (GPP, General Purpose Processor) and application specific integrated circuit (ASIC, Application Specific Integrated Circuit). Among them, the ASIC implementation scheme can achieve extremely high performance per unit area and unit energy performance through specific optimization of the implemented cryptographic algorithm. However, this implementation scheme is not flexible, and it is difficult to meet the implementation requirements of different algorithms, so it is not ideal. Program. The implementation scheme of GPP adopts the method of instruction execution, and the operat...

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Problems solved by technology

However, the configuration system and calculation array of these reconfigurable arrays are relatively simple, but in the operation of the PRESENT encryption algorithm method, the calculation is more complicated, and the number of execution rounds is large, and a large amount of cached data will be generated during the operation process. Therefore, the algorithm The low computing performance shows that the traditional reconfigurable computing system has deficiencies in the area efficiency and energy efficiency of the PRESENT encryption algorithm.

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