Method of generating a random number from a radio signal

Details Method of generating a random number from a radio signal Method of generating a random number from a radio signal

1998-01-16

2000-07-25

Eisenzopf, Reinhard J.

Telecommunications

Radiotelephone system

Security or fraud prevention

455462, 455517, 455 671, 380 23, 34082534, H04Q 734, G07C 1500

Patent

active

060945729

ABSTRACT:
A method of generating a random number is disclosed for forming an identification code used for mutual identification between a base station and a mobile telephone. The method includes receiving a radio signal by the base station or the mobile telephone; performing time intervals measurements separating passages of the radio signal through a reference level; and forming the random number from the time intervals measurements.

REFERENCES:
patent: 3688090 (1972-08-01), Rankin
patent: 4345323 (1982-08-01), Chang

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