عنوان انگلیسی مقاله:
Intelligent conditional collaborative private data sharing
ترجمه فارسی عنوان مقاله:
به اشتراک گذاری داده های خصوصی شرطی هوشمند
Sciencedirect - Elsevier - Future Generation Computer Systems, 96 (2019) 1-10: doi:10:1016/j:future:2019:01:001
Giuseppe Bianchi a, Tooska Dargahi a,b,∗, Alberto Caponi a, Mauro Conti c
With the advent of distributed systems, secure and privacy-preserving data sharing between different
entities (individuals or organizations) becomes a challenging issue. There are several real-world scenarios
in which different entities are willing to share their private data only under certain circumstances, such
as sharing the system logs when there is indications of cyber attack in order to provide cyber threat
intelligence. Therefore, over the past few years, several researchers proposed solutions for collaborative
data sharing, mostly based on existing cryptographic algorithms. However, the existing approaches are
not appropriate for conditional data sharing, i.e., sharing the data if and only if a pre-defined condition is
satisfied due to the occurrence of an event. Moreover, in case the existing solutions are used in conditional
data sharing scenarios, the shared secret will be revealed to all parties and re-keying process is necessary.
In this work, in order to address the aforementioned challenges, we propose, a ‘‘conditional collaborative
private data sharing’’ protocol based on Identity-Based Encryption and Threshold Secret Sharing schemes.
In our proposed approach, the condition based on which the encrypted data will be revealed to the
collaborating parties (or a central entity) could be of two types: (i) threshold, or (ii) pre-defined policy.
Supported by thorough analytical and experimental analysis, we show the effectiveness and performance
of our proposal.