Flexible attribute-based encryption applicable to secure e-healthcare records
نویسندگان
چکیده
منابع مشابه
Securing Healthcare Records in the Cloud Using Attribute-Based Encryption
Cloud Computing has attracted interest as an efficient system for storing and access of data. Sharing of personal electronic health record is an arising concept of exchanging health information for research and other purposes. Cconfidentiality except for authorized users, and access auditability are strong security requirements for health record. This study will examine these requirements and p...
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In this paper, we propose a notion of flexible attribute-based encryption. Flexible attribute-based encryption is a variant of ciphertextpolicy ABE, which allows one to loosen a decryption policy underlying a given ciphertext, if one knows some system-wide trapdoor information, without knowing its underlying plaintext message. We give a concrete construction of the flexible attribute-based encr...
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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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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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Cloud computing is an emerging computing paradigm that enables users to remotely store their data on a cloud so as to enjoy scalable services on-demand. It has been found that maintaining the privacy of data from an unauthorized user is really a major challenge. This is a major concern as such data is outsourced to keep storage at third parties say cloud service providers. It is very much essen...
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ژورنال
عنوان ژورنال: International Journal of Information Security
سال: 2015
ISSN: 1615-5262,1615-5270
DOI: 10.1007/s10207-014-0272-7