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The choice of a good random seed is crucial in Computer Security - when a secret Encryption Key is pseudorandomly Generated , a way to find it is to look for the seed used.

Random seeds are often generated from the state of the computer system (such as the Time ), or from a Hardware Random Number Generator .

If the same ''random'' seed is deliberately shared, two or more systems using matching pseudorandom number algorithms and matching seeds can generate matching sequences of non-repeating numbers which can be used to synchronize remote systems, such as GPS satellites and receivers.


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