Definition ∞ A trusted setup ceremony is a process used in certain cryptographic protocols to generate initial parameters that are critical for the system’s security. This ceremony involves multiple participants contributing to the creation of a public parameter string, ensuring that no single individual or small group can compromise the system. The security of the protocol relies on at least one participant honestly discarding their secret contribution. These parameters are essential for zero-knowledge proofs and other advanced cryptographic constructions, preventing malicious actors from forging proofs.
Context ∞ Trusted setup ceremonies are a significant topic in the development of scalable and privacy-preserving blockchain solutions, particularly for zero-knowledge rollups. News often reports on the successful completion of these ceremonies or discussions about alternative methods to achieve similar security guarantees without requiring trust assumptions. The integrity of such setups is fundamental to the trustworthiness of the systems they underpin.
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