Method and apparatus for testing a random number generator tester
US9135129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Oct 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/58
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for testing operation of a random number generator (RNG) testing circuit are provided. In accordance with at least one embodiment, a first RNG output value obtained from a RNG is stored in a first register. In response to activation of a test mode to simulate a faulty RNG, the first RNG output value is stored in a second register. The first RNG output value in the first register is compared to the first RNG output value in the second register. In response to the comparing, a RNG failure signal is provided at a RNG testing circuit output of the RNG testing circuit. In accordance with at least one embodiment, sequential and combinational logic can simulate a faulty RNG. Accordingly, simulation of a faulty RNG may be performed to test a RNG testing circuit even when the RNG is not faulty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.