alexa Abstract | A Review on Key Aggregate Cryptosystem of Vital Data Distribution in Cloud
ISSN ONLINE(2319-8753)PRINT(2347-6710)

International Journal of Innovative Research in Science, Engineering and Technology
Open Access

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Research Article Open Access

Abstract

Emerging new computing technology cloud offers storage services. Data sharing with others in secure and efficient manner is important function in cloud storage. For this the new expandable public-key cryptosystems which derives fixed-size ciphertexts. Using expandable public-key cryptosystems transform the multiple keys of the classes as single secret key. The generated single secret key sent to others or be stored in a smart card with very limited secure storage. If a user needs to classify his ciphertexts into more than n classes, user can register for additional key pairs. Each class is indexed by a two-level index and the number of classes is increased by n for each added key. For the approach, at most two aggregate keys are needed. This key extension approach can also be seen as a key update process. In case a secret value is compromised, user can replace compromised publickey with new publickey. Eventually the approach is flexible and effective.

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Author(s): B Thejaswini, N Sakthi Priya

Keywords

Aggregate Keys, Ciphertext, Public Key Cryptosystem., Cloud Computation,Stem Cell

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