Definition ∞ A single dishonest prover refers to a scenario in cryptographic proof systems where only one entity attempting to generate a proof is malicious or provides incorrect information. The system’s security relies on its ability to detect and reject invalid proofs from such a prover, even if all other participants are honest. Robust proof systems are designed to ensure that a dishonest prover cannot convince a verifier of a false statement. This guarantees the integrity of verified claims.
Context ∞ The security guarantees against a single dishonest prover are a fundamental consideration in the design and deployment of zero-knowledge proofs and optimistic rollups. Ensuring the verifier can always identify fraudulent claims, often through dispute resolution mechanisms or cryptographic challenges, is paramount. Ongoing research focuses on minimizing the time and cost required to detect and penalize such malicious behavior.
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