Optimal Left-to-Right Binary Signed-Digit Recoding

  • Authors:
  • Marc Joye;Sung-Ming Yen

  • Affiliations:
  • Gemplus Card International, Gémenos, France;National Central Univ., Chung-Li, Taiwan

  • Venue:
  • IEEE Transactions on Computers - Special issue on computer arithmetic
  • Year:
  • 2000

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Abstract

This paper describes new methods for producing optimal binary signed-digit representations. This can be useful in the fast computation of exponentiations. Contrary to existing algorithms, the digits are scanned from left to right (i.e., from the most significant position to the least significant position). This may lead to better performances in both hardware and software.