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IEICE TRANSACTIONS on Fundamentals

Study of Safe Elliptic Curve Cryptography over Gaussian Integer

Kazuki NAGANUMA, Takashi SUZUKI, Hiroyuki TSUJI, Tomoaki KIMURA

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Summary :

Gaussian integer has a potential to enhance the safety of elliptic curve cryptography (ECC) on system under the condition fixing bit length of integral and floating point types, in viewpoint of the order of a finite field. However, there seems to have been no algorithm which makes Gaussian integer ECC safer under the condition. We present the algorithm to enhance the safety of ECC under the condition. Then, we confirm our Gaussian integer ECC is safer in viewpoint of the order of finite field than rational integer ECC or Gaussian integer ECC of naive methods under the condition.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E103-A No.12 pp.1624-1628
Publication Date
2020/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.2020SML0002
Type of Manuscript
Special Section LETTER (Special Section on Smart Multimedia & Communication Systems)
Category
Cryptography and Information Security

Authors

Kazuki NAGANUMA
  Kanagawa Institute of Technology
Takashi SUZUKI
  Kanagawa Institute of Technology
Hiroyuki TSUJI
  Kanagawa Institute of Technology
Tomoaki KIMURA
  Kanagawa Institute of Technology

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