Modular Multiplication Hardware Algorithms with a Redundant Representation and their Application to RSA Cryptosystem

  • Authors:
  • Naofumi Takagi;Shuzo Yajima

  • Affiliations:
  • -;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1992

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Abstract

Radix-2 and radix-4 modular multiplication hardware algorithms are proposed. Numbers are represented in a redundant representation and modular additions are performed without carry propagation. Serial-parallel modular multipliers based on them have a regular cellular array structure with a bit slice feature suitable for VLSI implementation. They are efficient especially in applications, such as an RSA cryptosystem, where modular multiplications are performed iteratively.