Enhanced Key Aggregation Technique For Climbable Knowledge Sharing In Cloud

  Priyanka Kale ,  Mrunali Vaidya

Cloud 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 cipher texts. 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 cipher texts 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 public key with new public key. Eventually the approach is flexible and effective.

Keywords- cloud domain, key-aggregate cryptosystem, Identity key, secrete key, Attribute encrypt, TVES.

Unique Identification Number - IJEDR1603105
Page Number(s) - 639-644
Pubished in - Volume 4 | Issue 3 | August 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Priyanka Kale ,  Mrunali Vaidya,   " Enhanced Key Aggregation Technique For Climbable Knowledge Sharing In Cloud", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 3, pp.639-644, August 2016, Available at :http://www.ijedr.org/papers/IJEDR1603105.pdf