Presentation 2016-01-28
Quantitative Evaluation of Tamper Resistance for Random Number Masking
Ryoma Matsuhisa, Masaya Yoshikawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) When a cryptographic circuit is used, it is extremely important to verify its tamper resistance against side-channel attacks. Side-channel attacks illegally obtain confidential information using physical information, such as power consumption and electromagnetic waves generated during the encryption processing. In particular, power analysis attacks using power consumption can easily analyze confidential information. The masking is a typical measure against power analysis attacks. In this method, the correlation between power consumption and confidential information is masked by adding random numbers to intermediate data of encryption. However, there are no reports on relationship between the period and accuracy of the random number and the tamper resistance in the masking. This study verifies the tamper resistance of the masking using several random number generators.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Tamper Resistance / AES / Random Number Masking / Power Analysis Attack
Paper # CAS2015-70
Date of Issue 2016-01-21 (CAS)

Conference Information
Committee CAS
Conference Date 2016/1/28(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Satoshi Tanaka(Murata)
Vice Chair Toshihiko Takahashi(Niigata Univ.)
Secretary Toshihiko Takahashi(Hitachi)
Assistant Toshihiro Tachibana(Shonan Inst. of Tech.) / Yohei Nakamura(Hitachi)

Paper Information
Registration To Technical Committee on Circuits and Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Quantitative Evaluation of Tamper Resistance for Random Number Masking
Sub Title (in English)
Keyword(1) Tamper Resistance
Keyword(2) AES
Keyword(3) Random Number Masking
Keyword(4) Power Analysis Attack
1st Author's Name Ryoma Matsuhisa
1st Author's Affiliation Meijo University(Meijo Univ.)
2nd Author's Name Masaya Yoshikawa
2nd Author's Affiliation Meijo University(Meijo Univ.)
Date 2016-01-28
Paper # CAS2015-70
Volume (vol) vol.115
Number (no) CAS-422
Page pp.pp.51-56(CAS),
#Pages 6
Date of Issue 2016-01-21 (CAS)