Breaking the Blindfold: Deep Learning-based Blind Side-channel Analysis
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Presented at USENIX Security 2025 by
Physical side-channel analysis (SCA) operates on the foundational assumption of access to known plaintext or ciphertext. However, this assumption can be easily invalidated in various scenarios, ranging from common encryption modes like Offset CodeBook (OCB) to complex hardware implementations, where such data may be inaccessible. Blind SCA addresses this challenge by operating without the knowledge of plaintext or ciphertext. Unfortunately, prior such approaches have shown limited success in practical settings.