In our increasingly interconnected world, the security of embedded devices plays a critical role in protecting sensitive information. Evaluating this security requires a meticulous examination of how cryptographic processes are implemented within the hardware of these devices. One widely employed technique for this purpose is Power Side Channel Analysis. At the heart of Correlation Power Side Channel Analysis lies the concept of the power consumption model, which helps to simulate power consumption while executing cryptographic operations on hardware. In this model, along with the hypothetical secret key, is correlated with the actual power consumption during the execution of a cryptographic operation under an unknown secret key. This approach enables the detection of potential vulnerabilities in cryptographic implementations. In this research, we introduce a novel power leakage model called the Technology library Power Leakage Model. This model is rooted in semiconductor technology. By aligning our model closely with specific semiconductor technology, we achieve a more realistic representation of power consumption. Our study provides compelling evidence for the effectiveness of the Power Leakage Model. We successfully extracted secret keys from an AES implementation using Correlation Power Analysis (CPA). Importantly, our Power Leakage Model can be adapted to accommodate various semiconductor technologies such as 55 nm or 14 nm technologies. In this work, we also compared the newly proposed leakage model with the Hamming Distance model and empirically evaluated that both models perform similarly when linear correlation techniques are used in CPA.

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TPL: Power Leakage Model Based on Technology Library

  • Sumesh Manjunath Ramesh,
  • Hoda Alkhzaimi

摘要

In our increasingly interconnected world, the security of embedded devices plays a critical role in protecting sensitive information. Evaluating this security requires a meticulous examination of how cryptographic processes are implemented within the hardware of these devices. One widely employed technique for this purpose is Power Side Channel Analysis. At the heart of Correlation Power Side Channel Analysis lies the concept of the power consumption model, which helps to simulate power consumption while executing cryptographic operations on hardware. In this model, along with the hypothetical secret key, is correlated with the actual power consumption during the execution of a cryptographic operation under an unknown secret key. This approach enables the detection of potential vulnerabilities in cryptographic implementations. In this research, we introduce a novel power leakage model called the Technology library Power Leakage Model. This model is rooted in semiconductor technology. By aligning our model closely with specific semiconductor technology, we achieve a more realistic representation of power consumption. Our study provides compelling evidence for the effectiveness of the Power Leakage Model. We successfully extracted secret keys from an AES implementation using Correlation Power Analysis (CPA). Importantly, our Power Leakage Model can be adapted to accommodate various semiconductor technologies such as 55 nm or 14 nm technologies. In this work, we also compared the newly proposed leakage model with the Hamming Distance model and empirically evaluated that both models perform similarly when linear correlation techniques are used in CPA.