A new privacy framework lets a company verify your ID without you even knowing what specific attributes they checked.
Unlike standard privacy tech, 'mutual privacy' hides the verifier's secret criteria from the user while hiding the user's data from the verifier. This allows for secure, trustless verification where both parties maintain their internal secrets.
COD-ssi: Enforcing Mutual Privacy for Credential Oblivious Disclosure in Self Sovereign Identity
arXiv · 2604.10685
The Self-Sovereign Identity (SSI) paradigm is instrumental for decentralised identity management, allowing an entity to create, manage, and present their digital credentials without relying on centralised authorities. Credential selective disclosure is one of the most attractive privacy-preserving features of SSI, allowing users to reveal only the minimum necessary information from their credentials. However, current selective disclosure mechanisms primarily focus on protecting the privacy of cr