APPARATUS AND METHOD FOR GENERATING RANDOM NUMBERS
摘要
Random number generation apparatus (2) is described that comprises a threshold detector (4) and an electrical noise generator (6). The electrical noise generator (6) has at least two channels (8a-8d) and each channel is arranged to generate an electrical noise signal. The threshold detector (4), which may comprise a digital input-output (DIO) card, is arranged to periodically compare this electrical noise signal with a threshold and to provide a binary data output that indicates whether the threshold has been exceeded. Each channel of the electrical noise generator comprises at least two amplifiers (10a-10c) electrically connected in series that preferably provide a gain of 50,000 or more. Use of the random number generation apparatus (2) for quantum cryptography applications is also described.
申请公布号
WO2007096598(A2)
申请公布日期
2007.08.30
申请号
WO2007GB00580
申请日期
2007.02.19
申请人
QINETIQ LIMITED;TAPSTER, PAUL, RICHARD;GORMAN, PHILIP, MICHAEL