| 摘要 |
A random number generating method using low power microprocessor and a device therefor are disclosed. The random number generating method includes a step that the microprocessor determines whether external power is supplied to a random number generator, a step that the microprocessor updates an internal state of the random number generator with a first method when the external power is supplied, and a step that the microprocessor updates the internal state of the random number generator with a second method different from the first method when the external power is not supplied. [Reference numerals] (301) External power supply;(302) Power switching circuit;(303) Battery;(304) Hardware noise source;(305) Low-power micro processor;(307) Random number generation algorithm unit;(308) Initial value providing unit |
