Randomness sources are mechanisms or processes that produce unpredictable and non-deterministic outputs. In computing and cryptography, truly random numbers are essential for generating secure keys, addresses, and for various protocol operations. These sources can be hardware-based, utilizing physical phenomena, or software-based, relying on complex algorithms. Their quality directly impacts the security of digital systems.
Context
News in the blockchain domain frequently discusses the importance of robust randomness sources for the security and fairness of decentralized applications, especially in areas like gaming, lotteries, and validator selection. Weak randomness can lead to predictability and vulnerability to attack, undermining system integrity. Oracles providing verifiable random functions (VRFs) are a significant development in bringing secure external randomness to smart contracts.
This research introduces a novel multi-level optical physical unclonable function, generating adaptable cryptographic keys to secure diverse networks from IoT to sensitive data.
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