Authors
Dimitrios Hristu-Varsakelis, Konstantinos Chalkias, George Stephanides
Publication date
2007/8/29
Conference
Third International Symposium on Information Assurance and Security
Pages
77-82
Publisher
IEEE
Description
We propose a new server-based efficient protocol for time-release encryption (TRE), or - as sometimes referred to - sending information "into the future". As with other recently-proposed schemes, ours is based on the use of bilinear pairings on any Gap Diffie-Hellman group, allowing absolute release time of the encrypted data. Our protocol possesses the required properties regarding user anonymity and server passivity. It also provides almost-costless scalability in settings with multiple time-servers, and improves significantly upon existing TRE schemes, in terms of computational and communication cost. This makes our approach well-suited to a number of emerging e-applications that require future decryption of confidential data.
Total citations
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Scholar articles
D Hristu-Varsakelis, K Chalkias, G Stephanides - … Symposium on Information Assurance and Security, 2007