Full Secure Attribute-Based Broadcast Encryption Achieved through Selective Techniques
نویسندگان
چکیده
منابع مشابه
New Proof Methods for Attribute-Based Encryption: Achieving Full Security through Selective Techniques
We develop a new methodology for utilizing the prior techniques to prove selective security for functional encryption systems as a direct ingredient in devising proofs of full security. This deepens the relationship between the selective and full security models and provides a path for transferring the best qualities of selectively secure systems to fully secure systems. In particular, we prese...
متن کاملA Fully Secure Attribute Based Broadcast Encryption Scheme
Besides traditional functionality of broadcast encryption, attribute based broadcast encryption (ABBE) provides more flexible assess control mechanism over encrypted data. In this paper, a ciphertext-policy ABBE (CPABBE) scheme is proposed. In such scheme, user’s private key is attached with attributes and an index while ciphertext is associated with an access structure and a broadcast set. A k...
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Attribute-Based Encryption (ABE) is a promising cryptographic primitive which significantly enhances the versatility of access control mechanisms. Due to the high expressiveness of ABE policies, the computational complexities of ABE key-issuing (by Attribute Authorities (AAs)) and decryption (by eligible users) are getting prohibitively high. Despite that the existing Outsourced ABE solutions a...
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In this paper, we describe a new broadcast encryption scheme for stateless receivers. The main difference between our scheme and the classical ones derived from the complete subtree paradigm is that the group of privileged users is described by attributes. Actually, some real applications have been described where the use of a more adaptable access structure brings more efficiency and ease of d...
متن کاملCiphertext-Policy Attribute-Based Broadcast Encryption Scheme
In this work, we design a new attribute-based encryption scheme with the revocation capability. In the proposed schemes, the user (broadcaster) encrypts the data according to an access policy over the set of attributes, and a list of the identities of revoked users. Only recipients who have attributes which satisfy the access policy and whose identity is not in the list of revoked users will be...
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ژورنال
عنوان ژورنال: DEStech Transactions on Environment, Energy and Earth Science
سال: 2016
ISSN: 2475-8833
DOI: 10.12783/dteees/seeie2016/4528