Presentation 1997/12/19
Cryptanalysis of Discrete Logarithm Cryptosystems Using Timing Attacks
Masaoki ISHIKAWA, Eiji OKAMOTO,
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Abstract(in English) Usually, when inputing different values (e.g. plaintext, ciphertext or secret key) to a cryptosystem, there is a little difference for amounts of time to process the system. Performance optimizations to bypass unnecessary operations, branching and conditional statements may be some of reasons. Performance characteristics of cryptosystems generally depend on both the encryption or decryption key and the input data. Therefore, attackers can find out the secret information of cryptosystems if there is a way of measuring the amount of processing time. This cryptanalysis is called a timing attack. In this paper, we confirm effectiveness of the timing attack on cryptosystems using discrete logarithm problem, and propose a method of estimating secret key from timing measurements.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) timing attack / cryptanalysis / discrete logarithm problem
Paper # ISEC97-61
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Committee ISEC
Conference Date 1997/12/19(1days)
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Paper Information
Registration To Information Security (ISEC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Cryptanalysis of Discrete Logarithm Cryptosystems Using Timing Attacks
Sub Title (in English)
Keyword(1) timing attack
Keyword(2) cryptanalysis
Keyword(3) discrete logarithm problem
1st Author's Name Masaoki ISHIKAWA
1st Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology()
2nd Author's Name Eiji OKAMOTO
2nd Author's Affiliation School of Information Science, Japan Advanced Institute of Science and Technology
Date 1997/12/19
Paper # ISEC97-61
Volume (vol) vol.97
Number (no) 461
Page pp.pp.-
#Pages 12
Date of Issue