Secure Private Key Distribution for Dynamic Groups in the Cloud
نویسندگان
چکیده
منابع مشابه
Perfectly-Secure Key Distribution for Dynamic Conferences
A key distribution scheme for dynamic conferences is a method by which initially an (off-line) trusted server distributes private individual pieces of information to a set of users. Later any group of users of a given size (a dynamic conference) is able to compute a common secure key. In this paper we study the theory and applications of such perfectly secure systems, In this setting, any group...
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∗ This work was done within the project “Optimisation of the Internet Protocols over Satellite”. This project was financed by the European Space Agency. Abstract: In this paper, we address the problem of key distribution for large dynamic groups. We propose algorithms that require only an O(log |M|) (where |M| denotes the size of the group) message communication complexity when a member leaves ...
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We remark that the scheme [IEEE TPDS, 27(1), 2016, 40-50] is flawed because the group manager cannot complete his computational task in the registration phase. Actually, they have misunderstood the concept of public key which is usually associated with an asymmetric encryption algorithm. Besides, the mechanism that the group manager has to re-encrypt all data stored in the cloud after a member ...
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ژورنال
عنوان ژورنال: International Journal for Research in Applied Science and Engineering Technology
سال: 2018
ISSN: 2321-9653
DOI: 10.22214/ijraset.2018.1256