Definition ∞ An updatable MPC ceremony is a cryptographic procedure where multiple independent parties contribute to generating a shared secret or public parameter, which can be securely updated over time. This process enhances the security and longevity of systems relying on trusted setups, as it allows for periodic refreshes without starting anew. It distributes trust and reduces single points of failure.
Context ∞ These ceremonies are vital for the security of advanced zero-knowledge proof systems and other cryptographic protocols. News often covers significant updatable MPC ceremonies, highlighting their participants, security audits, and the implications for the protocols they secure. The ability to update these parameters improves long-term system resilience.
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