Method and apparatus for generating random numbers

A system collects entropy data and stores the entropy data in a nonvolatile memory. The entropy data stored in the nonvolatile memory is updated with newly collected entropy data. The entropy data stored in the nonvolatile memory is used to generate a string of random bits. The entropy data is colle...

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Bibliographische Detailangaben
Hauptverfasser:	FIELD SCOTT A, SPELMAN JEFFREY F
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A system collects entropy data and stores the entropy data in a nonvolatile memory. The entropy data stored in the nonvolatile memory is updated with newly collected entropy data. The entropy data stored in the nonvolatile memory is used to generate a string of random bits. The entropy data is collected from multiple sources within a computer system and may include data related to a processor in the computer system and an operating system executing on the computer system. The entropy data is maintained in a protected portion of an operating system kernel. A hashing algorithm is applied to the entropy data to generate random seed data.