Definition ∞ A System Time Seed is an input for a random number generator that relies on the current time of a computer system. While seemingly random, system time can often be predicted or manipulated by attackers. Its function is to serve as an initial value for cryptographic processes, but its predictability makes it a weak source of entropy.
Context ∞ The discussion around system time seeds is crucial in understanding cryptographic vulnerabilities, particularly in older or poorly designed security implementations. A key debate involves the necessity of true randomness for secure key generation and digital signatures, contrasting it with easily accessible but weak sources. A critical future development is the universal adoption of cryptographically secure random number generators that do not rely on predictable inputs like system time, enhancing the foundational security of digital assets.
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