Attribute based Encryption to Control Illegal Definitions in HMS
نویسندگان
چکیده
منابع مشابه
Attribute-based encryption implies identity-based encryption
In this short paper we formally prove that designing attribute-based encryption schemes cannot be easier than designing identity-based encryption schemes. In more detail, we show how an attribute-based encryption scheme which admits, at least, AND policies can be combined with a collision-resistant hash function to obtain an identity-based encryption scheme. Even if this result may seem natural...
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Ciphertext-policy attribute-based encryption (CP-ABE) is an access control mechanism where a data provider encrypts a secret message and then sends the ciphertext to the receivers according to the access policy which she/he decides. If the attributes of the receivers match the access policy, then they can decrypt the ciphertext. This manuscript shows a relation between ABE and identity-based en...
متن کاملVerifiable Attribute Based Encryption
In this paper, we propose the notion of Verifiable Attribute-Based Encryption (VABE) and give two constructs of key-policy VABE. One is with a single authority, and the other is with multi authorities. Not only our schemes are proved secure as the previous ABE schemes, they also provide a verification property. This could not be trivially solved, such as trying random decryption. Adding the ver...
متن کاملDistributed Attribute-Based Encryption
Ciphertext-Policy Attribute-Based Encryption (CP-ABE) allows to encrypt data under an access policy, specified as a logical combination of attributes. Such ciphertexts can be decrypted by anyone with a set of attributes that fits the policy. In this paper, we introduce the concept of Distributed Attribute-Based Encryption (DABE), where an arbitrary number of parties can be present to maintain a...
متن کاملDecentralizing Attribute-Based Encryption
We propose a Multi-Authority Attribute-Based Encryption (ABE) system. In our sys-tem, any party can become an authority and there is no requirement for any global coor-dination other than the creation of an initial set of common reference parameters. A partycan simply act as an ABE authority by creating a public key and issuing private keys todifferent users that reflect their a...
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ژورنال
عنوان ژورنال: International Journal of Emerging Research in Management and Technology
سال: 2018
ISSN: 2278-9359
DOI: 10.23956/ijermt.v7i1.28