Achieving buyer-seller anonymity for unsophisticated users...

Data processing: financial – business practice – management – or co – Business processing using cryptography – Secure transaction

Reexamination Certificate

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C705S026640, C705S051000, C713S156000, C380S029000, C380S029000, C380S029000, C380S030000, C380S044000, C380S044000, C380S051000

Reexamination Certificate

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06873977

ABSTRACT:
A method and system offer confidential purchase of electronic data which can be used without any need of knowledge in cryptography nor mastery of computer use beyond usual usage of the World Wide Web (WWW). The method and system which guarantee confidentiality as long as there is no collusion between agents working for a large number of reputable companies whose references can be easily checked on the Internet before proceeding to the order. In addition, the method and system allow for guaranteed payment and offer recourse in case of improper delivery.

REFERENCES:
patent: 4405829 (1983-09-01), Rivest et al.
patent: 5420926 (1995-05-01), Low et al.
patent: 20010037253 (2001-11-01), Kensey
patent: 20020059144 (2002-05-01), Meffert et al.
Benjamin Cox, “Maintaining Privacy In Electronic Transactions”, MS Thesis, Information Networking Institute, Carnegie Mellon University, Aug. 1994.*
B. Cox, “Maintaining Privacy in Electronic Transactions”, Carnegie Mellon University, Pennsylvania, Aug. 1994.

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