A Multiple Equivalent Execution Trace Approach to Secure Cryptographic Embedded Software

We propose an efficient and effective method to secure software implementations of cryptographic primitives on low-end embedded systems, against passive side-channel attacks relying on the observation of power consumption or electro-magnetic emissions. The proposed approach exploits a modified llvm...

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Bibliographic Details
Main Authors: Agosta, Giovanni, Barenghi, Alessandro, Pelosi, Gerardo, Scandale, Michele
Format: Conference Proceeding
Language:English
Subjects:
Applied computing > Computers in other domains > Personal computers and PC applications > Microcomputers
Ciphers
Computer systems organization > Embedded and cyber-physical systems
Computer systems organization > Real-time systems
Optimization
Power Analysis Attacks
Power demand
Registers
Software
Software Countermeasures
Static Analysis
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Summary:We propose an efficient and effective method to secure software implementations of cryptographic primitives on low-end embedded systems, against passive side-channel attacks relying on the observation of power consumption or electro-magnetic emissions. The proposed approach exploits a modified llvm compiler toolchain to automatically generate a secure binary characterized by a randomized execution flow. Also, we provide a new method to refresh the random values employed in the share splitting approaches to lookup table protection, addressing a currently open issue. We improve the current state-of-the-art in dynamic executable code countermeasures removing the requirement of a writeable code segment, and reducing the countermeasure overhead.
ISSN:0738-100X
DOI:10.1145/2593069.2593073