The Journal of China Universities of Posts and Telecommunications ›› 2019, Vol. 26 ›› Issue (1): 21-31.doi: 10.19682/j.cnki.1005-8885.2018.0032

• Security • Previous Articles     Next Articles

Privacy preserving ciphertext-policy attribute-based broadcast encryption in smart city

Yi-Lei CUI,Le-You Zhang   

  • Received:2018-05-03 Revised:2018-07-24 Online:2019-02-26 Published:2019-02-27
  • Contact: Yi-Lei CUI
  • Supported by:
    National Nature Science Foundation of China;National Key Research and Development Program of China;Natural Science Basic Research Plan in Shaanxi Province of China

Abstract: With the development and application of information technology, the problem of personal privacy leakage is becoming more and more serious. Most attribute-based broadcast encryption (ABBE) schemes focus on data security, while ignoring the protection of the personal privacy of users in access structure and identity. To address this problem, a privacy preserving ABBE scheme is proposed, which ensures the data confidentiality and protects personal privacy as well. In addition, the authenticity of encrypted data can be verified. It is proved that the proposed scheme achieves full security by dual system encryption.

Key words: smart city, attribute-based broadcast encryption, privacy preserving, full security