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Cryptographic Lower Bound

Definition

A cryptographic lower bound establishes the minimum computational effort or resources theoretically required to break a specific cryptographic system or solve a particular cryptographic problem. This bound represents the highest possible security level achievable by a given cryptographic primitive against all known or conceivable attacks. It indicates the inherent difficulty of reversing a cryptographic operation without the correct key. Such bounds are fundamental for assessing the long-term security of digital systems.