To implement high-speed configurable RSA accelerator

a pipelined modular multiplier architecture based on radix—64 Montgomery modular multiplication algorithm and its corresponding configurable memory architecture are proposed.With parallel calculation of five-stage pipeline and configurable memory

it fulfills RSA calculation ranging from 256-bit to 2048 bit efficiently.As is shown in experiment

compared with other related works

the proposed pipeline architecture can reach better tradeoff between performance and resource.The accelerator is able to increase the performance of modular multiplier and total data throughput.With 73-kilo gates

it achieves 333 kbps data throughput for 1024-bit RSA calculation.