Efficient Secure-Channel Free Public Key Encryption with Keyword Search for EMRs in Cloud Storage

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• 作者：Lifeng Guo (1)
  Wei-Chuen Yau (2)
  
  1. School of Computer and Information Technology ; Shanxi University ; Taiyuan ; 030006 ; Shanxi ; People鈥檚 Republic of China
  2. Faculty of Engineering ; Multimedia University ; Persiaran Multimedia ; 63100 ; Cyberjaya ; Selangor Darul Ehsan ; Malaysia
  
• 关键词：Electronic medical record ; Cloud storage ; Public key encryption ; Keyword search ; Keyword guessing attack ; Standard model
• 刊名：Journal of Medical Systems
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：39
• 期：2
• 全文大小：449 KB
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• 刊物类别：Mathematics and Statistics
• 刊物主题：Statistics
  Statistics for Life Sciences, Medicine and Health Sciences
  Health Informatics and Administration
  
• 出版者：Springer Netherlands
• ISSN：1573-689X

文摘

Searchable encryption is an important cryptographic primitive that enables privacy-preserving keyword search on encrypted electronic medical records (EMRs) in cloud storage. Efficiency of such searchable encryption in a medical cloud storage system is very crucial as it involves client platforms such as smartphones or tablets that only have constrained computing power and resources. In this paper, we propose an efficient secure-channel free public key encryption with keyword search (SCF-PEKS) scheme that is proven secure in the standard model. We show that our SCF-PEKS scheme is not only secure against chosen keyword and ciphertext attacks (IND-SCF-CKCA), but also secure against keyword guessing attacks (IND-KGA). Furthermore, our proposed scheme is more efficient than other recent SCF-PEKS schemes in the literature.