Results 201 to 210 of about 629 (227)

Revocable Predicate Encryption from Lattices

2017
Predicate encryption, formalized by Katz, Sahai, and Waters (EUROCRYPT 2008), is an attractive branch of public-key encryption, which provides fine-grained and role-based access to encrypted data. As for many multi-user cryptosystems, an efficient revocation mechanism is necessary and imperative in the context of predicate encryption, in order to ...
San Ling, Khoa Nguyen 0002, Huaxiong Wang, Juanyang Zhang   +3 more
openaire   +1 more source

Generic Construction of Publicly Verifiable Predicate Encryption

Proceedings of the 11th ACM on Asia Conference on Computer and Communications Security, 2016
There is an increasing trend for data owners to store their data in a third-party cloud server and buy the service from the cloud server to provide information to other users. To ensure confidentiality, the data is usually encrypted. Therefore, an encrypted data searching scheme with privacy preserving is of paramount importance.
Chuting Tan, Zoe Lin Jiang, Xuan Wang 0002, Siu-Ming Yiu, Junbin Fang, Jin Li 0002, Yabin Jin, Jiajun Huang   +7 more
openaire   +1 more source

Practical Functional Encryption for Quadratic Functions with Applications to Predicate Encryption

2017
We present two practically efficient functional encryption schemes for a large class of quadratic functionalities. Specifically, our constructions enable the computation of so-called bilinear maps on encrypted vectors. This represents a practically relevant class of functions that includes, for instance, multivariate quadratic polynomials (over the ...
Elisabetta Zaira Baltico, Carmen, Catalano, Dario, Fiore, Dario, Gay, Romain   +3 more
openaire   +4 more sources

Multireceiver Predicate Encryption for Online Social Networks

IEEE Transactions on Signal and Information Processing over Networks, 2017
Among the applications of the internet and cloud computing, online social network (OSN) is a very popular service. Since a lot of personal information is stored on the OSN platform, privacy protection on such an application has become a critical issue. Apart from this, OSN platforms need advertisement revenue to enable continued operations. However, if
Chun-I Fan, Yi-Fan Tseng, Jheng-Jia Huang, Shih-Fen Chen, Hiroaki Kikuchi   +4 more
openaire   +1 more source

Verifiable Predicate Encryption and Applications to CCA Security and Anonymous Predicate Authentication

2012
In this paper, we focus on verifiability of predicate encryption. A verifiable predicate encryption scheme guarantees that all legitimate receivers of a ciphertext will obtain the same message upon decryption. While verifiability of predicate encryption might be a desirable property by itself, we furthermore show that this property enables interesting ...
Shota Yamada 0001, Nuttapong Attrapadung, Bagus Santoso, Jacob C. N. Schuldt, Goichiro Hanaoka, Noboru Kunihiro   +5 more
openaire   +1 more source

A Predicate Encryption Scheme Supporting Multiparty Cloud Computation

2015 International Conference on Intelligent Networking and Collaborative Systems, 2015
Multiparty cloud computation can deal with the problem that the traditional homomorphic encryption can't operation on the ciphertexts generated by different users, and the final result is computed by cloud server. The trivial multiparty cloud computation doesn't take the access control to the final result into consideration.
Zhenlin Tan, Wei Zhang
openaire   +1 more source

Delegate predicate encryption and its application to anonymous authentication

Proceedings of the 4th International Symposium on Information, Computer, and Communications Security, 2009
Predicate encryption provides fine-grained control over encryption and decryption. In a predicate encryption scheme, message is encrypted with a set of attributes, and decryption key is incorporated with a predicate. Only when the predicate evaluates to true over these attributes, the message can be correctly decrypted.
Ribao Wei, Dingfeng Ye
openaire   +1 more source

Predicate Encryption and Functional Encryption

2021
Seong Oun Hwang, Intae Kim, Wai Kong Lee
openaire   +1 more source

A Study of Pair Encodings: Predicate Encryption in Prime Order Groups

2015
Pair encodings and predicate encodings, recently introduced by Attrapadung [2] and Wee [36] respectively, greatly simplify the process of designing and analyzing predicate and attribute-based encryption schemes. However, they are still somewhat limited in that they are restricted to composite order groups, and the information theoretic properties are ...
Shashank Agrawal, Melissa Chase
openaire   +2 more sources

Attribute-Hiding Predicate Encryption in Bilinear Groups, Revisited

2017
We present new techniques for achieving strong attribute-hiding in prime-order bilinear groups under the standard k-Linear assumption. Our main result is a “partially hiding” predicate encryption scheme for functions that compute an arithmetic branching program on public attributes, followed by an inner product predicate on private attributes.
openaire   +1 more source