Scan-Based Side-Channel Attack on the LED Block Cipher Using Scan Signatures

• FUJISHIRO Mika

  Department of Computer Science and Engineering, Waseda University

• YANAGISAWA Masao

  Department of Electronic and Photonic Systems, Waseda University

• TOGAWA Nozomu

  Department of Computer Science and Engineering, Waseda University

抄録

LED (Light Encryption Device) block cipher, one of lightweight block ciphers, is very compact in hardware. Its encryption process is composed of AES-like rounds. Recently, a scan-based side-channel attack is reported which retrieves the secret information inside the cryptosystem utilizing scan chains, one of design-for-test techniques. In this paper, a scan-based attack method on the LED block cipher using scan signatures is proposed. In our proposed method, we focus on a particular 16-bit position in scanned data obtained from an LED LSI chip and retrieve its secret key using scan signatures. Experimental results show that our proposed method successfully retrieves its 64-bit secret key using 36 plaintexts on average if the scan chain is only connected to the LED block cipher. These experimental results also show the key is successfully retrieved even if the scan chain includes additional 130,000 1-bit data.

収録刊行物

• IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

  IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E97.A (12), 2434-2442, 2014

  一般社団法人 電子情報通信学会

キーワード

• LED
• light encryption device
• side-channel attacks
• scan chain
• scan-based attack

詳細情報

• CRID: 1390001206310789632
• NII論文ID: 130004706406
• DOI: 10.1587/transfun.e97.a.2434
• ISSN: 17451337
• ISSN: 09168508
• Web Site: https://www.jstage.jst.go.jp/article/transfun/E97.A/12/E97.A_2434/_pdf
• 本文言語コード: en
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