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Driven by malicious intent, attackers are impelled to extract the cipher key and thus compromise the cryptosystem through fault attacks. Existing fault-detection methods can effectively detect random faults in the cipher implementation, but yield a high fault bypass rate (FBR) under intelligent fault attacks. To address this limitation, we propose a new microarchitecture to thwart fault attacks that...
The fourth fundamental circuit element, memristor, attracts increasing attention because of its memory characteristic. The special memory behavior of the memristor has been exploited to design control systems, memory arrays, logic gate, and security primitives in previous work. However, the power characteristics of the memristor have not been widely studied yet. In this work, we used a memristor model...
We propose three fault-tolerant methods for a new lightweight block cipher SIMON, which has the potential to be a hardware-efficient security primitive for embedded systems. As a single fault in the encryption (decryption) process can completely change the ciphertext (received plaintext), it is critical to ensure the reliability of encryption and decryption modules. We explore double-modular redundancy...
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