publication . Conference object . Part of book or chapter of book . 2016

Constant-Size Ciphertext Attribute-Based Encryption from Multi-channel Broadcast Encryption

Sébastien Canard; Viet Cuong Trinh;
Open Access
  • Published: 24 Nov 2016
Abstract
Attribute-based encryption (ABE) is an extension of traditional public key encryption in which the encryption and decryption phases are based on user's attributes. More precisely, we focus on ciphertext-policy ABE (CP-ABE) where the secret-key is associated to a set of attributes and the ciphertext is generated with an access policy. It then becomes feasible to decrypt a ciphertext only if one's attributes satisfy the used access policy. CP-ABE scheme with constant-size ciphertext supporting fine-grained access control has been investigated at AsiaCrypt'15 and then at TCC'16. The former makes use of the conversion technique between ABE and spatial encryption, an...
Subjects
ACM Computing Classification System: Data_CODINGANDINFORMATIONTHEORY
free text keywords: attribute-based encryption, ciphertext-policy, CNF, Computer science, Data mining, computer.software_genre, computer, Ciphertext, Plaintext-aware encryption, Probabilistic encryption, Discrete mathematics, Deterministic encryption, Multiple encryption, Ciphertext indistinguishability, Malleability, Attribute-based encryption
Related Organizations
Funded by
EC| SUPERCLOUD
Project
SUPERCLOUD
USER-CENTRIC MANAGEMENT OF SECURITY AND DEPENDABILITY IN CLOUDS OF CLOUDS
  • Funder: European Commission (EC)
  • Project Code: 643964
  • Funding stream: H2020 | RIA
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publication . Conference object . Part of book or chapter of book . 2016

Constant-Size Ciphertext Attribute-Based Encryption from Multi-channel Broadcast Encryption

Sébastien Canard; Viet Cuong Trinh;