2025/09/09 by Norman Poh, Poh, Norman, D. Burns +1
Computer Science · #Biometric Identification and Security #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Face recognition and analysis #User Authentication and Security Systems
paper · pdf · doi:10.48550/arxiv.2509.07465
openalex publication_date 2025/09/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Age verification is increasingly critical for regulatory compliance, user trust, and the protection of minors online. Historically, solutions have struggled with poor accuracy, intrusiveness, and significant security risks. More recently, concerns have shifted toward privacy, surveillance, fairness, and the need for transparent, trustworthy systems. In this paper, we propose Biometric Bound Credentials (BBCreds) as a privacy-preserving approach that cryptographically binds age credentials to an individual's biometric features without storing biometric templates. This ensures only the legitimate, physically present user can access age-restricted services, prevents credential sharing, and addresses both legacy and emerging challenges in age verification. enhances privacy.