
Recoverable Encryption through Noised Secret over a Large Cloud
Schwarz, Thomas; Litwin, Witold; Jajodia, Sushil (2012), Recoverable Encryption through Noised Secret over a Large Cloud, in Tjoa, A Min; Morvan, Franck; Hussain, Farookh Khadeer; Hameurlain, Abdelkader, Data Mangement in Cloud, Grid and P2P Systems 5th International Conference, Globe 2012, Vienna, Austria, September 5-6, 2012, Proceedings, Springer : Berlin, p. 13-24. 10.1007/978-3-642-32344-7_2
Type
Communication / ConférenceDate
2012Conference title
5th International Conference on Data Mangement in Cloud, Grid and P2P Systems, Globe 2012Conference date
2012-09Conference city
VienneConference country
AustriaBook title
Data Mangement in Cloud, Grid and P2P Systems 5th International Conference, Globe 2012, Vienna, Austria, September 5-6, 2012, ProceedingsBook author
Tjoa, A Min; Morvan, Franck; Hussain, Farookh Khadeer; Hameurlain, AbdelkaderPublisher
Springer
Series title
Lecture Notes in Computer ScienceSeries number
7450Published in
Berlin
ISBN
978-3-642-32343-0
Number of pages
113Pages
13-24
Publication identifier
Metadata
Show full item recordAuthor(s)
Schwarz, ThomasLitwin, Witold
Laboratoire d'analyse et modélisation de systèmes pour l'aide à la décision [LAMSADE]
Jajodia, Sushil
Abstract (EN)
Encryption key safety is the Achilles’ heel of cryptography. Backup copies with the escrow offset the risk of key loss, but increase the danger of disclosure. We propose Recoverable Encryption (RE) schemes which alleviate the dilemma. The backup is encrypted so that the recovery is possible in prac-tice only over a large cloud. A 10K-node cloud may recover a key in at most 10 minutes, with the 5 minutes average. Same attempt at the escrow’s site, a com-puter or perhaps a cluster, could require 70 days with the 35 days average. Large clouds are now affordable. Their illegal use is unlikely. We show feasi-bility of two schemes with their application potential.Subjects / Keywords
Key Escrow; Recoverable Encryption; Cloud ComputingRelated items
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