# Tag Info

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Please refer the document at NIST site pointing to the document (800-22-rev 1a ) updated on April 2010 (http://csrc.nist.gov/publications/nistpubs/800-22-rev1a/SP800-22rev1a.pdf). The list of special published (SP) documents are available at (http://csrc.nist.gov/publications/PubsSPs.html) It involves some reading, but should get your answers. Since it ...

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By using the definition of $n$ bits of full entropy, NIST is abstracting away from the definition of a NRBG (or TRNG). They are basically trying to establish a minimum requirement for the quality of the random number generator, without going into the specifics on how this can be achieved. Basically this is NIST's way of saying: if we specify $n$ bits of full ...

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"Entropy" is more accurately defined, in cryptography, as "that which the attacker does not know". For instance, suppose that every day you take all rates at the closure of the New York stock exchange, and hash them with SHA-256. The resulting value is very unpredictable (otherwise you could become very rich), so, from a "physics" point of view, there is a ...

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