Batch Attribute-Based Encryption for Secure Clouds
نویسندگان
چکیده
منابع مشابه
Batch Attribute-Based Encryption for Secure Clouds
Cloud storage is widely used by organizations due to its advantage of allowing universal access with low cost. Attribute-based encryption (ABE) is a kind of public key encryption suitable for cloud storage. The secret key of each user and the ciphertext are associated with an access policy and an attribute set, respectively; in addition to holding a secret key, one can decrypt a ciphertext only...
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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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A new decentralized access control scheme is used for secure data storage in clouds that supports anonymous authentication. According to this scheme a user can create a file and store it securely in the cloud. Decryption will only work if the attributes associated with the decryption key match the policy used to encrypt the message. The cloud verifies the authenticity of the users without knowi...
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The data security concerns and requirements are very essential for social networks or for cloud computing where individuals, organizations, and businesses may outsource their various types of data, including highly sensitive data into the cloud. Always people would like to make their sensitive or private data only accessible to authorized people having some access policies. So in order to share...
متن کاملGeneric Constructions for Chosen-Ciphertext Secure Attribute Based Encryption
In this paper we propose generic conversions for transforming a chosen-plaintext (CPA) secure attribute-based encryption (ABE) to a chosen-ciphertext (CCA) secure ABE. The only known generic conversion, to the best of our knowledge, was presented by Goyal et al. in ACM-CCS 2006, which itself subsumes the well-known IBE-to-PKE conversion by Canetti, Halevi, and Katz proposed in Eurocrypt 2004. T...
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ژورنال
عنوان ژورنال: Information
سال: 2015
ISSN: 2078-2489
DOI: 10.3390/info6040704