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Identity-based proxy re-encryption scheme from RLWE assumption with ciphertext evolution
《The Journal of China Universities of Posts and Telecommunications》2023年第5期51-60,共10页Meng Hui Ren Lina Zhao Zongqu 
supported by the Henan Key Laboratory of Network Cryptography Technology(LNCT2022-A11);the Shaanxi Key Laboratory of Information Communication Network and Security(ICNS202006)。
Proxy re-encryption(PRE)allows users to transfer decryption rights to the data requester via proxy.Due to the current PRE schemes from lattice(LPRE)cannot fulfill chosen-ciphertext attack(CCA)security,an identity-base...
关键词：proxy re-encryption(PRE) learning with errors over ring(RLWE) chosen-ciphertext attack(CCA) ciphertext delegation ciphertext evolution 
Continual auxiliary leakage-resilient attribute-based broadcast encryption with constant size ciphertexts
《The Journal of China Universities of Posts and Telecommunications》2020年第4期69-82,共14页Shang Yujie Zhang Leyou Gao Xiaoxu 
supported by the National Cryptography Development Fund ( MMJJ20180209)。
Attribute-based broadcast encryption(ABBE) under continual auxiliary leakage-resilient(CALR) model can enhance the security of the shared data in broadcasting system since CALR model brings the possibility of new leak...
关键词：CALR model leakage-resilient cryptography attribute-based broadcast encryption constant size ciphertext 
Privacy preserving ciphertext-policy attribute-based broadcast encryption in smart city
《The Journal of China Universities of Posts and Telecommunications》2019年第1期21-31,共11页Cui Yilei Zhang Leyou 
supported by the National Natural Science Foundation of China(61472307,61402112);the Key Research Project of Shaanxi Province of China(2018GY-018);the Foundation of Education Department of Shaanxi Province(17JK0713);the National Key Research and Development Program of China(2017YFB0802002);the National Cryptography Development Fund(MMJJ20180209)
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...
关键词：smart city ATTRIBUTE-BASED BROADCAST ENCRYPTION PRIVACY PRESERVING full security 
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