De-SyRIS: A Decentralized Sybil-Resistant Identity System Using Mutual Facial Biometric Verification and Social Graph Analysis

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While decentralized identity management systems strive for autonomy, most still rely on centralized mechanisms (e.g., phone numbers or government-issued IDs) to achieve Sybil resistance and prevent fake identity attacks. This article proposes a novel approach for decentralized identity management that ensures robust Sybil resistance, unlike the systems currently in widespread use. Our approach is based on a social graph of connected users. The main novelty resides in pairwise mutual facial biome