Title:
乱数生成回路
Document Type and Number:
Japanese Patent JP4427581
Kind Code:
B2
Abstract:
It is made possible to provide a random number generation device which generates a physical random number with as little power dissipation as possible. A random number generation device includes: a ring oscillator having at least one set, each set comprising a current noise source (2) and a Schmitt inverter (4) configured to receive an output of the current noise source (2); and a conversion circuit (20) configured to convert output frequency fluctuation of the ring oscillator to a random number and output the random number.
Inventors:
Kazutaka Ikegami
Shinichi Yasuda
Shinichi Yasuda
Application Number:
JP2008001141A
Publication Date:
March 10, 2010
Filing Date:
January 08, 2008
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G06F7/58; G09C1/00; H03K3/84
Domestic Patent References:
| JP11509707A | ||||
| JP2000089672A |
Attorney, Agent or Firm:
Kenji Yoshitake
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki
Yasukazu Sato
Hiroshi Yoshimoto
Yasushi Kawasaki