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In computational complexity theory, P and NP are two classes of problems. P is the class of decision problems that a deterministic Turing machine can solve in polynomial time. In useful terms, any ...

Prime numbers are tricky things. We learn in school that they’re numbers with no factors other than 1 and themselves, and that mathematicians have known for thousands of years that an infinite number ...

Snowden documents say NSA introduced weaknesses to the number-generating guidance. The National Institute of Standards and Technology has finally removed a cryptographic algorithm from its draft ...