Journal
JOURNAL OF THE CHINESE INSTITUTE OF ENGINEERS
Volume 42, Issue 1, Pages 20-28Publisher
CHINESE INST ENGINEERS
DOI: 10.1080/02533839.2018.1537807
Keywords
PEKS; certificateless; off-line keyword guessing attacks; provably secure
Categories
Funding
- National Natural Science Foundation of China [61572157, 2016A030313660]
- Guangdong Province Natural Science Foundation [JCYJ20160608161351559]
- Shenzhen Municipal Science and Technology Innovation Project
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Public key encryption with keyword search, known as PEKS, is a useful technology in some Storage-as-a-Service clouds. This technology allows the cloud server to search on a keyword, which is received from the data owner/user, over encrypted data without having the ability to decrypt the stored data. PEKS with designated verifier, known as dPEKS, further advances the security of PEKS such that only a designated server can perform the keyword searching. Combining the certificateless technology, which aims to avoid the key escrow problem in ID-based cryptography, produces a certificateless dPEKS scheme that inherits the property of certificatelessness in key management in the dPEKS. This paper presents a provably secure certificateless dPEKS which has fixed an insecure scheme which was proposed earlier. The scheme presented in this paper is proven to be secure under Bilinear Diffie-Hellman problem.
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