Abstract
Fast implementations of block cipher is fundamental building block to achieve the high-speed and secure communication between IT platforms. Even though the communication is securely encrypted, the system can be exploited by malicious users if the attackers inject fault signal to the system and extract the user’s secret information. For this reason, we need to ensure the high performance encryption together with secure countermeasures against side channel attacks. In this paper, we present a novel countermeasure against fault attack on Single Instruction Multiple Data (SIMD) architecture (e.g., ARM–NEON, INTEL–SSE, INTEL–AVX2). The methods achieved the fault attack resistance with intra-instruction redundancy feature in SIMD instruction set. Finally, we applied the new fault attack countermeasures on the block cipher LEA and achieved the intra-instruction redundancy and high performance over modern ARM-NEON architectures.
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