Hierarchical time-based information release

Authors:
Deholo Nali;Carlisle Adams;Ali Miri
Affiliations:
School of Information Technology and Engineering (SITE), University of Ottawa, P. O. Box 450, 800 King Edward Avenue, Station A, Ottawa, Ontario, Canada;School of Information Technology and Engineering (SITE), University of Ottawa, P. O. Box 450, 800 King Edward Avenue, Station A, Ottawa, Ontario, Canada;School of Information Technology and Engineering (SITE), University of Ottawa, P. O. Box 450, 800 King Edward Avenue, Station A, Ottawa, Ontario, Canada
Venue:
International Journal of Information Security - Special issue on ISC'05
Year:
2006

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General Certificateless Encryption and Timed-Release Encryption

SCN '08 Proceedings of the 6th international conference on Security and Cryptography for Networks

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Abstract

Rapid distribution of newly released confidential information is often impeded by network traffic jams, especially when the confidential information is either crucial or highly prized. This is the case for stock market values, blind auction bidding amounts, many large corporations'strategic business plans, certain news agencies'timed publications, and some licensed software updates. Hierarchical time-based information release (HTIR) schemes enable the gradual distribution of encrypted confidential information to large, distributed, (potentially) hierarchically structured user communities, and the subsequent publication of corresponding short decryption keys, at a predetermined time, so that users can rapidly access the confidential information. This paper presents and analyzes the efficiency of a novel HTIR scheme.