Presentation 2022-03-01
A Logic Locking Method based on SFLL-hd at Register Transfer Level
Yohei Noguchi, Masayoshi Yoshimura, Atsuya Tsujikawa, Toshinori Hosokawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, with the increase of VLSI integration, LSI design companies utilize circuit design information, called IP cores from IP vendors in order to reduce design costs. However, since IP cores are digital data, it is easy to infringe copyright by copying, etc. Therefore, it is important to take measures against copyright infringement of IP cores. As a design method for copyright protection of IP cores, a method called logical encryption has been proposed. On the other hand, efficient attack methods against logical encryption, such as SAT and FALL attacks, have been proposed. Therefore, there is a need for logical encryption that is resistant to these attack methods. In this paper, we propose a method for RTL design based on SFLL-hd, which is resistant to SAT and FALL attacks. For controllers at RTL, we show an algorithm to find a correct key input to realize SFLL-hd. Experimental results show that the proposed method is resistant to the FALL attack.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Logic Locking / SAT attack / FALL attack / RTL
Paper # DC2021-72
Date of Issue 2022-02-22 (DC)

Conference Information
Committee DC
Conference Date 2022/3/1(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hiroshi Takahashi(Ehime Univ.)
Vice Chair Tatsuhiro Tsuchiya(Osaka Univ.)
Secretary Tatsuhiro Tsuchiya(Nihon Univ.)

Paper Information
Registration To Technical Committee on Dependable Computing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Logic Locking Method based on SFLL-hd at Register Transfer Level
Sub Title (in English)
Keyword(1) Logic Locking
Keyword(2) SAT attack
Keyword(3) FALL attack
Keyword(4) RTL
1st Author's Name Yohei Noguchi
1st Author's Affiliation Kyoto Sangyo University(Kyoto Sangyo Univ.)
2nd Author's Name Masayoshi Yoshimura
2nd Author's Affiliation Kyoto Sangyo University(Kyoto Sangyo Univ.)
3rd Author's Name Atsuya Tsujikawa
3rd Author's Affiliation Nihon University(Nihon Univ.)
4th Author's Name Toshinori Hosokawa
4th Author's Affiliation Nihon University(Nihon Univ.)
Date 2022-03-01
Paper # DC2021-72
Volume (vol) vol.121
Number (no) DC-388
Page pp.pp.45-50(DC),
#Pages 6
Date of Issue 2022-02-22 (DC)