Original scientific paper
https://doi.org/10.21857/y54jofkjdm
Formal language identity-based cryptography
Ádám Vécsi
; Department of Computer Science, University of Debrecen, Kassai str. 26, H-4028 Debrecen, Hungary
Attila Pethő
; Department of Computer Science, University of Debrecen, Kassai str. 26, H-4028 Debrecen, Hungary
Abstract
The rapid growth of the digital economy makes finegrained access control more and more challenging. One of the most impacted areas is cloud computing, which for security purposes requires cryptographic access control. Currently, the best solution for that is the use of Attribute-based Cryptography, which allows the definition of access policies, based on the attributes of entities. Unfortunately, this family of schemes comes along with a significant drawback, specifically the required user-side computation is growing with the growth of the complexity of the access policy. We provide a concept, called Formal Language Identitybased Cryptography, which gives a solution to this problem, making finegrained cryptographic access control practical.
Keywords
Identity-based Cryptography; Attribute-based Cryptography; access control; proxy signature
Hrčak ID:
261470
URI
Publication date:
25.8.2021.
Visits: 1.107 *