Title:
アクセス資格認証装置および方法
Document Type and Number:
Japanese Patent JP3622433
Kind Code:
B2
Abstract:
A burden caused by handling a large number of unique identifying information pieces such as authentication keys is to be lightened from both the user side and the protector side such as application creators. A proof data verification device sends authentication data to a proof data generation device. Signature data generation means and presignature data generation means in the proof data generation device cooperate with each other to generate proof data (a signature based on a discrete logarithm problem) from the received authentication data as well as held user unique identifying information and an access ticket, and send the proof data back to the proof data verification device. Verification means in the proof data verification device verify the signature, and if the verification is successful, the execution of program is allowed.
Inventors:
Taro Terao
Kakei Rumiko
Kakei Rumiko
Application Number:
JP21039997A
Publication Date:
February 23, 2005
Filing Date:
August 05, 1997
Export Citation:
Assignee:
Fuji Xerox Co., Ltd
International Classes:
G06F21/62; G06F9/06; G06F12/14; G06F15/00; G06F21/12; G06F21/14; G06F21/31; G06F21/33; G06F21/34; G06F21/60; G06F21/64; G09C1/00; H04L9/32; H04L29/06; G06F1/00; (IPC1-7): H04L9/32; G06F9/06; G06F15/00; G09C1/00
Domestic Patent References:
| JP7281595A |
Other References:
申 吉浩,小島 俊一,デジタル著作物流通の為のアクセス制御スキーム”,電子情報通信学会技術研究報告(ISEC97-20),日本,社団法人電子情報通信学会,1997年 7月18日,Vol.97,No.181,p.65-73
Dominique de Waleffe and Jean-Jacques Quisquater,Better login protocols for computer networks”,Lecture Notes in Computer Science,1993年12月13日,Vol.741,p.50-70
Dominique de Waleffe and Jean-Jacques Quisquater,Better login protocols for computer networks”,Lecture Notes in Computer Science,1993年12月13日,Vol.741,p.50-70
Attorney, Agent or Firm:
Toshio Sawada