Information security – Access control or authentication
Reexamination Certificate
2007-03-06
2007-03-06
Sheikh, Ayaz (Department: 2131)
Information security
Access control or authentication
C726S003000, C726S004000, C726S005000, C726S006000, C726S010000, C726S018000, C726S019000, C726S021000, C709S223000, C709S224000, C709S225000, C709S226000, C709S229000, C713S155000, C713S156000, C713S158000, C713S180000
Reexamination Certificate
active
09277417
ABSTRACT:
An email access control scheme capable of resolving problems of the real email address and enabling a unique identification of the identity of the user while concealing the user identification is disclosed. A personalized access ticket containing a sender's identification and a recipient's identification in correspondence is to be presented by a sender who wishes to send an email to a recipient so as to specify the recipient as an intended destination of the email. Then, accesses between the sender and the recipient by verifying an access right of the sender with respect to the recipient according to the personalized access ticket at a secure communication service. Also, an official identification of each user by which each user is uniquely identifiable by a certification authority, and an anonymous identification of each user containing at least one fragment of the official identification are defined, and each user is identified by the anonymous identification of each user in communications for emails on a communication network.
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Hisada Yusuke
Ichikawa Haruhisa
Ono Satoshi
Jackson Jenise E.
Kilpatrick & Stockton LLP
Nippon Telegraph and Telephone Corporation
Sheikh Ayaz
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