XTR Extended to GF(p6m)

  • Authors:
  • Seongan Lim;Seungjoo Kim;Ikkwon Yie;Jaemoon Kim;Hongsub Lee

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • SAC '01 Revised Papers from the 8th Annual International Workshop on Selected Areas in Cryptography
  • Year:
  • 2001

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Abstract

A. K. Lenstra and E. R. Verheul in [2] proposed a very efficient way called XTR in which certain subgroup of the Galois field GF(p6) can be represented by elements in GF(p2). At the end of their paper [2], they briefly mentioned on a method of generalizing their idea to the field GF(p6m). In this paper, we give a systematic design of this generalization and discuss about optimal choices for p and m with respect to performances. If we choose m large enough, we can reduce the size of p as small as the word size of common processors. In such a case, this extended XTR is well suited for the processors with optimized arithmetic on integers of word size.