Efficient Attack to White-Box SMS4 Implementation

Lin, Tingting; Lai, Xuejia

doi:10.3724/sp.j.1001.2013.04356

Cited by 19 publications

(15 citation statements)

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“…WBAES were badly broken, the Xiao–Lai WBSM4 is also vulnerable. Lin and Lai extended the Billet et al . techniques and broke the Xiao–Lai WBSM4.…”

Section: Related Workmentioning

confidence: 93%

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A secure white-box SM4 implementation

Bai

2015

Security Comm. Networks

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White‐box cryptography aims at implementing a cipher to protect its key from being extracted in a white‐box attack context, where an attacker has full control over dynamic execution of the cryptographic software. So far, most white‐box implementations exploit lookup‐table‐based techniques and have been broken because of a weakness that the embedded large linear encodings are cancelled out by compositions of lookup tables. In this paper, we propose a new lookup‐table‐based white‐box implementation for the Chinese block cipher standard SM4 that can protect the large linear encodings from being cancelled out. Our implementation, which can resist a series of white‐box attacks, requires 32.5MB of memory to store the lookup tables and is about nine times as fast as the previous Xiao–Lai white‐box SM4 implementation. Copyright © 2015 John Wiley & Sons, Ltd.

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“…WBAES were badly broken, the Xiao–Lai WBSM4 is also vulnerable. Lin and Lai extended the Billet et al . techniques and broke the Xiao–Lai WBSM4.…”

Section: Related Workmentioning

confidence: 93%

“…The BGE attack recovers the round key by detecting affine equivalences, and the Lin–Lai attack also relies on the Billet et al . techniques to recover the linear encodings.…”

Section: Security Analysismentioning

confidence: 99%

A secure white-box SM4 implementation

Bai

2015

Security Comm. Networks

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“…Furthermore, the linear transformation , i n L is implemented by multiplying a composition of a series of matrices given by (23).…”

Section: Threat Models and The Crux Of Secure Implementationsmentioning

confidence: 99%

“…Because there are there are 8 2 ! possible constructions for each S-Box, the work factor of a attack follows the idea of [23] would be about 8 2 ! times higher break than the normal white-box SMS4 in Section 3.…”

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confidence: 99%

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A lightweight white-box symmetric encryption algorithm against node capture for WSNs

Shi

2014

2014 IEEE Wireless Communications and Networking Conference (WCNC)

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Wireless Sensor Networks (WSNs) are often deployed in hostile environments and, thus, nodes can be potentially captured by an adversary. This is a typical white-box attack context, i.e., the adversary may have total visibility of the implementation of the build-in cryptosystem and full control over its execution platform. Handling white-box attacks in a WSN scenario is a challenging task. Existing encryption algorithms for white-box attack contexts require large memory footprint and, hence, are not applicable for wireless sensor networks scenarios. As a countermeasure against the threat in this context, in this paper, we propose a class of lightweight secure implementations of the symmetric encryption algorithm SMS4. The basic idea of our approach is to merge several steps of the round function of SMS4 into table lookups, blended by randomly generated mixing bijections. Therefore, the size of the implementations are significantly reduced while keeping the same security efficiency. The security and efficiency of the proposed solutions are theoretically analyzed. Evaluation shows our solutions satisfy the requirement of sensor nodes in terms of limited memory size and low computational costs.

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Cryptanalysis of Two White-Box Implementations of the SM4 Block Cipher

2021

Lecture Notes in Computer Science

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Efficient Attack to White-Box SMS4 Implementation

Cited by 19 publications

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A secure white-box SM4 implementation

A secure white-box SM4 implementation

A lightweight white-box symmetric encryption algorithm against node capture for WSNs

Cryptanalysis of Two White-Box Implementations of the SM4 Block Cipher

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