Call For Paper Volume:4 Issue:7 Jul'2017 |

ANALYSIS OF AN EFFECTIVE, SCALABLE AND SECURED DATA SHARING SERVICE IN CLOUD COMPUTING

Publication Date : 16/01/2016



Author(s) :

Ms. P. Sangeetha., Research Scholar, , Mrs. M.M.Kavitha M.Sc., M.Phil, Assistant Professor,.


Volume/Issue :
Volume 3
,
Issue 1
(01 - 2016)



Abstract :

  Scalable and flexible privacy-preserving data sharing scheme in the cloud ensures both semantic security and effective availability of user data. To preserve privacy and guarantee data confidentiality against the cloud, the scheme employs a cryptographic primitive, named cipher-text policy attribute-based encryption (CP-ABE) and combines it with an identity-based encryption (IBE) technique; each data file is described by a set of meaningful attributes, allowing each user to be assigned an access structure that defines the scope of data files they can have access to.    To enforce these access structures, this scheme defines a public-private key pair for each attribute. For each user’ secret key, there is a combination of user’s ID and the attribute’s secret key, thereby ensuring that each attribute presents a different key to each user. Data files are encrypted by public key components and access matrices converted from the access structure; user secret keys are defined to reflect their access privileges so that a user can only decrypt a ciphertext if they have the matched attributes to satisfy the ciphertext. To resolve the challenging issues of collusion resistance, this scheme provides users with a public key fitted to their secret keys; This paper use user’s ID to “tie” together the attributes belonging to this user so that they cannot be successfully combined with another’s user’s attributes. Index Terms: Cloud Computing, Data sharing and security, Access policies and Cryptography


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ANALYSIS OF AN EFFECTIVE, SCALABLE AND SECURED DATA SHARING SERVICE IN CLOUD COMPUTING

January 12, 2016