Title:
音響電子署名生成器をオラクルとして用いるシステムおよび方法
Document Type and Number:
Japanese Patent JP2005526449
Kind Code:
A
Abstract:
A hand-held sonic token can be used as a pseudorandom oracle for a requesting application, which can generate a challenge that is sent to the token. The user of the token decides whether to allow the token to function as an oracle, and if so, the user causes the token to digitally sign the challenge and send it back to the requesting application, for use of the digitally signed challenge as an encryption key. After encryption the requesting application deletes the signed challenge, with subsequent decryption essentially following the encryption process.
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Inventors:
Gantman, Alexander
Application Number:
JP2004506235A
Publication Date:
September 02, 2005
Filing Date:
May 15, 2003
Export Citation:
Assignee:
QUALCOMM INCORPORATED
International Classes:
H04L9/08; H04L9/22; H04L9/32; H04L9/30; (IPC1-7): H04L9/08; H04L9/22; H04L9/32
Domestic Patent References:
| JPH10136086A | 1998-05-22 | |||
| JPH11205388A | 1999-07-30 | |||
| JPH09312643A | 1997-12-02 | |||
| JP2001255953A | 2001-09-21 |
Foreign References:
| WO1996007256A1 | 1996-03-07 |
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto