A Verifiable Unpredictable Function (VUF) is a cryptographic function that produces an output that is both random and provably generated according to a specified process. This means anyone can verify that the output was created correctly, but no one can predict the output before its generation. VUFs provide a strong guarantee of randomness and integrity. They are essential for fair and secure decentralized systems.
Context
In blockchain technology, verifiable unpredictable functions are critical for applications requiring true randomness, such as selecting block proposers in proof-of-stake systems or generating random outcomes for on-chain gaming. News often discusses the implementation of VUFs to enhance the security and fairness of decentralized protocols. Their deployment helps to prevent manipulation and ensure the integrity of random processes within digital asset ecosystems.
Cryptographers introduce Weighted VRFs to provide cost-independent, autonomous, and fresh on-chain randomness for weighted Proof-of-Stake systems, solving a critical scalability bottleneck.
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