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

Mika FUJISHIRO; Masao YANAGISAWA; Nozomu TOGAWA

doi:10.1587/transfun.E97.A.2434

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

Mika FUJISHIRO, Masao YANAGISAWA, Nozomu TOGAWA

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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.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.12 pp.2434-2442

Publication Date: 2014/12/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E97.A.2434

Type of Manuscript: Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)

Category: Logic Synthesis, Test and Verification

Authors

Mika FUJISHIRO
  Waseda University
Masao YANAGISAWA
  Waseda University
Nozomu TOGAWA
  Waseda University

Keyword

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

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Mika FUJISHIRO, Masao YANAGISAWA, Nozomu TOGAWA, "Scan-Based Side-Channel Attack on the LED Block Cipher Using Scan Signatures" in IEICE TRANSACTIONS on Fundamentals, vol. E97-A, no. 12, pp. 2434-2442, December 2014, doi: 10.1587/transfun.E97.A.2434.
Abstract: 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.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E97.A.2434/_p

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@ARTICLE{e97-a_12_2434,
author={Mika FUJISHIRO, Masao YANAGISAWA, Nozomu TOGAWA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Scan-Based Side-Channel Attack on the LED Block Cipher Using Scan Signatures},
year={2014},
volume={E97-A},
number={12},
pages={2434-2442},
abstract={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.},
keywords={},
doi={10.1587/transfun.E97.A.2434},
ISSN={1745-1337},
month={December},}

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TY - JOUR
TI - Scan-Based Side-Channel Attack on the LED Block Cipher Using Scan Signatures
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2434
EP - 2442
AU - Mika FUJISHIRO
AU - Masao YANAGISAWA
AU - Nozomu TOGAWA
PY - 2014
DO - 10.1587/transfun.E97.A.2434
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E97-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2014
AB - 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.
ER -