A Study On Cipher-Text Attribute Based Encryption Using Secret Sharing Schemes

Encryption has an important role in the aspects of information security. A term attribute-based encryption uses the cipher-text which depends on the attributes. Decryption of such a text may be used when set of users’ attributes matches corresponding cipher-text. In such a cipher-text policy attribute-based encryption (CP-ABE); the cipher-text associates to the access policy while that of the secret key was associated with the attribute set. In this proposed construction, we discuss Linear Integer Secret Sharing scheme (LISS) in which access policy of the encryptor is distributed over a LISS matrix M involving the attributes of the system. The security makes much stronger using LISS matrix. We use AND and OR logic gates for multi-value attributes to make a secure stronger.