Secure Data Sharing Using Compact Summation key in HybridCloud Storage
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2015, Vol 17, Issue 1
Abstract
Abstract: Data security is crucial aspect in cloud storage. Providing security to a single file or to set of files isanother important factor. In cloud, security is applied to a set of files i.e. to central location. In file sharingapproach a single key can be used to gain access to storage. Applying security to each file in cloud is notpossible with cloud environment. To solve this type ofproblems, new improved key assignment scheme have tobe used. New improved algorithm that satisfies these conditions is summation key encryption. Summation key isof power more than two keys. It takes one public key, known to both parties & another key is generated usingkeygen algorithm. Data owner retrieves the summation key from the alternatives made to share data. This keycan be dispatch to second user using secure channel for example email or smart cards. Summation key iscompact in size & also decrease the size of files after encryption. Time duration required to generate summationkey is very short as compare to Identity based or Attribute based encryption scheme.Practically how thisalgorithm is beneficial to provide security to individual files in cloud repositoryis described here.
Authors and Affiliations
Pratap M Mohite, , DipaDharmadhikari , RavindraBankar
Keywords
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