Hash algorithm SHA-1 is used widely in cryptographic applications such as E-commerce and commercial en— cryption softwares．By making an overall analysis．implementation of pipeline structure was proposed,By shorting the eritical path，using inside RAMs to realize the daha translation instead of LE，we improved the frequency and the speed of per SHA-1 uIlit．The performance on FPGAs of Altera iS three times faster of commercial IP cores for SHA—1． Keywords Hash algorithm(SHA?1)，Critical path，Pipeline structure，Throughput of per AT production unit(TP— PAT)。CsA

FPGA上SHA-1算法的流水线结构实现.pdf

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