PBKDF2 cryptographic algorithm accelerating method and used device

Abstract

The invention discloses a PBKDF2 cryptographic algorithm accelerating device. The device comprises a CPU+FPGA (Field-Programmable Gate Array) heterogeneous system composed of an FPGA and a universal CPU. The invention further provides a PBKDF2 cryptographic algorithm accelerating method. The method comprises the following steps: 1) initial: computing a pre-computing part and a part before a loop body of a PBKDF2 algorithm is executed in a CPU, and transmitting a computed result to the FPGA via a bus interface; 2) loop: placing a computing-intensive loop body part in the PBKDF2 algorithm onto the FPGA, improving an acceleration effect and a resource utilization efficiency on the FPGA using an optimization means, and transmitting the computed result to the CPU via the bus interface; and 3) check: reading result data obtained after FPGA accelerated computing, and performing computed result summarization as well as check value computation and judgment.

Description

technical field [0001] The present invention relates to the accelerated realization design field of the cryptographic algorithm of heterogeneous system, be specifically designed to be applicable to the acceleration frame of the PBKDF2 cryptographic algorithm of general-purpose CPU2+FPGA1 equipment, and utilize high-level comprehensive tool to realize from C language level in field programmable gate array ( Acceleration device on FPGA1). Background technique [0002] In today's world filled with all kinds of information, protecting sensitive data and information that is stored, transmitted or shared has become a very important topic. Using passwords is a very common and simple way to keep user information safe. Proper use of passwords to protect sensitive data and information requires not only choosing strong passwords, but also choosing a secure method for handling passwords in software and hardware systems. As a result, various encryption algorithms have been produced, an...

AI Technical Summary

Problems solved by technology

[0007] The analysis and research on the performance of the PBKDF2 algorithm is mostly based on the general-purpose CPU or GPU (Graphic Processing Unit, graphics processing unit) hardware platform, which causes the running speed to be limited by the replacement of the CPU or GPU, and the latest CPU or GPU is limited by the cost and Deployment scale is limited, and old CPUs or GPUs are limited by performance

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