Definition ∞ Dishonest Majority MPC describes a specific security model within Multi-Party Computation (MPC) where a majority of participating parties might act maliciously. In this scenario, the security of the computation must hold even if more than half of the participants conspire to subvert the process. This model represents a highly robust security guarantee, crucial for sensitive operations where adversaries could control many nodes. It ensures data privacy and correctness despite significant adversarial power.
Context ∞ Multi-Party Computation is a vital technology for privacy-preserving operations in decentralized systems, enabling computations on private data without revealing individual inputs. The challenge of achieving security against a dishonest majority remains a key research area in cryptography. Advancements in this field are critical for the broader adoption of MPC in digital asset management and confidential transactions, impacting the security assurances provided by various protocols.
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