Scalable and secure sharing of personal health records in cloud computing using attribute-based encryption







Scalable and secure sharing of personal health records in cloud computing using attribute-based encryption
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ABSTRACT Personal health record (PHR) is an emerging patient-centric model of health information exchange, which is often outsourced to be stored at a third party, such as cloud providers. However, there have been wide privacy concerns as personal health 

A Survey on Attribute - based Encryption Schemes of Access Control in Cloud Environments.
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Abstract In Attribute - based Encryption (ABE) scheme, attributes play a very important role. Attributes have been exploited to generate a public key for encrypting data and have been used as an access policy to control users access. The access policy can be categorized as

On multi-authority ciphertext-policy attribute - based encryption
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In classical encryption schemes, data is encrypted under a single key that is associated with a user or group. In Ciphertext-Policy Attribute - Based Encryption (CP-ABE) keys are associated with attributes of users, given to them by a central trusted authority, and data isWe introduce a broad lattice manipulation technique for expressive cryptography, and use it to realize functional encryption for access structures from post-quantum hardness assumptions. Specifically, we build an efficient key-policy attribute - based encryption

A2BE: Accountable Attribute - Based Encryption for Abuse Free Access Control.
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As a recently proposed public key primitive, attribute - based encryption (ABE)(including Ciphertext-policy ABE (CP-ABE) and Key-policy ABE (KP-ABE)) is a highly promising tool for secure fine-grained access control. For the purpose of secure access control, there is

Collusion-resistant group key management using attribute - based encryption
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This work illustrates the use of ciphertext-policy attributebased encryption (CP-ABE), a recently proposed primitive, in the setting of group key management. Specifically, we use the CP-ABE scheme of Bethencourt, Sahai and Waters to implement flat table group key

Enhanced Attribute Based Encryption for Cloud Computing.
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Cloud computing is emerging paradigm provides various IT related services. The security and privacy are two major factors that inhibits the growth of cloud computing. Security factors are reasons behind lesser number of real times and business related cloud applications

Fully Secure Attribute Based Encryption from Multilinear Maps.
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We construct the first fully secure attribute based encryption (ABE) scheme that can handle access control policies expressible as polynomial-size circuits. Previous ABE schemes for general circuits were proved secure only in an unrealistic selective security model, where

Ciphertext-Policy Hierarchical Attribute - based Encryption for Fine-Grained Access Control of Encryption Data.
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In the ciphertext-policy attribute based encryption (CPABE) scheme, a private key holder is related with a set of attributes while the data is encrypted under an access structure defined by the data provider. In most proposed schemes, the characteristics of the attributes are

Using Threshold Attribute - based Encryption for Practical Biometric- based Access Control.
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Threshold attribute - based encryption (thABE) is a variant of identity- based encryption which views identities as sets of descriptive attributes. If a thABE ciphertext c is computed for a set ω of attributes, then, to decrypt c, a user must have keys associated with a sufficiently large Distributed information systems require complex access control which depends upon attributes of protected data and access policies. Traditionally, to enforce the access control, a file server is used to store all data and act as a reference to check the user. Apparently, the

New privacy-preserving architectures for identity-/ attribute - based encryption
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The notion of identity- based encryption (IBE) was proposed as an economical alternative to public-key infrastructures. IBE is also a useful building block in various cryptographic primitives such as searchable encryption . A generalization of IBE is attribute - based

Lattice Ciphertext Policy Attribute - based Encryption in the Standard Model.
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A lattice ciphertext policy attribute based encryption (CP-ABE) scheme is presented, in which the ciphertext policy achieved is the AND-gates on multi-valued attributes. The previous construction with AND-gates on multi-valued attributes as ciphertext policy is based

Realizing Massive-Scale Conditional Access Systems Through Attribute - Based Cryptosystems.
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Page Attribute - Based Encryption Sahai-Waters Construction (Eurocrypt05) ‣ Generalization of Identity- Based Encryption Page Attribute - Based Encryption Sahai-Waters Construction (Eurocrypt05) ‣ Generalization of Identity- Based EncryptionWe present an accountable authority key policy attribute - based encryption (A-KPABE) scheme. In this paper, we extend Goyals work to key policy attribute - based encryption setting. We first generalize the notion of accountable authority in key policy attribute - based

Ciphertext-policy attribute - based threshold decryption with flexible delegation and revocation of user attributes
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Abstract In Ciphertext-Policy Attribute - Based Encryption (CP-ABE), a user secret key is associated with a set of attributes, and the cipher- text is associated with an access structure or decryption policy over at- tributes Attribute - Based Encryption

Adaptively secure multi-authority attribute - based encryption with verifiable outsourced decryption.
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Attribute - based encryption (ABE) was first introduced by Sahai and Waters where the decryption ability of a user is based on his attributes. Later, it was divided into ciphertext- policy ABE (CP-ABE) and key-policy ABE (KP-ABE) . In CP-ABE, a secret key is

Designing a secure cloud- based ehr system using ciphertext-policy attribute - based encryption
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As more and more healthcare organizations adopt electronic health records (EHRs), the case for cloud data storage becomes compelling for deploying EHR systems: not only is it inexpensive but it also provides the flexible, wide-area mobile access increasingly needed

Fully Secure and Succinct Attribute Based Encryption for Circuits from Multi-linear Maps.
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We propose new fully secure attribute based encryption (ABE) systems for polynomialsize circuits in both key-policy and ciphertext-policy flavors. All the previous ABE systems for circuits were proved only selectively secure. Our schemes are based on asymmetric graded According to the relation of an attribute set and its subset, the author presents a hierarchical attribute - based encryption scheme in which a secret key is associated with an attribute set. A user can delegate the private key corresponding to any subset of an attribute set while he

Role- based Access Control for Body Area Networks Using Attribute - based Encryption in Cloud Storage.
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In order to save storage space, the data collected from body area networks can be stored in a third party. However, this bring security problems. The common method is encrypting data before outsourcing. In this paper, we design a role- based access control scheme -SOFTWARE SALES SERVICE-https://www.engpaper.net--