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Hierarchical Identity-Based Conditional Proxy Re-encryption Scheme Based RLWE and NTRU Variant

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Data Science (ICPCSEE 2021)

Part of the book series: Communications in Computer and Information Science ((CCIS,volume 1452))

Abstract

IB-PRE can perform fine-grained access control on the user’s decryption rights based on the identity of the delegatee, while the proxy cannot obtain the identity information of the delegator and delegatee. The current identity-based proxy re-encryption scheme achieves the ciphertext conversion between users at the same level, while it does not further distinguish between different levels of user identity, which is not suitable for hierarchical user management system. This paper combines hierarchical identity encryption with proxy re-encryption, and uses RLWE encryption system and NTRU variant as the underlying encryption scheme. According to the difference of the key reversibility and the ciphertext share between the two systems, the control of the decryption authority of users’ different levels was realized. The transformed cipher text still satisfies the rules of higher level to decrypt lower level cipher, and constructs a unidirectionality, collusion resistant, and non-interactive hierarchical identity-based conditional proxy re-encryption scheme(HIB-CPRE), which is IND-sid-CPA security under the RLWE difficult assumption.

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Author information

Authors and Affiliations

  1. College of Cryptographic Engineering, Engineering University of PAP, Xi’an, 710086, China

    Chao Wang, Yiliang Han, Xiaowei Duan & KaiYang Guo

  2. Key Laboratory of PAP for Cryptology and Information Security, Xi’an, 710086, China

    Chao Wang, Yiliang Han, Xiaowei Duan & KaiYang Guo

Authors
  1. Chao Wang
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  2. Yiliang Han
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  3. Xiaowei Duan
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  4. KaiYang Guo
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Editor information

Editors and Affiliations

  1. North University of China, Taiyuan, China

    Jianchao Zeng

  2. North University of China, Taiyuan, China

    Pinle Qin

  3. Northeast Forestry University, Harbin, China

    Weipeng Jing

  4. Harbin University of Science and Technology, Harbin, China

    Xianhua Song

  5. National Academy of Guo Ding Institute of Data Science, Beijing, China

    Zeguang Lu

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Wang, C., Han, Y., Duan, X., Guo, K. (2021). Hierarchical Identity-Based Conditional Proxy Re-encryption Scheme Based RLWE and NTRU Variant. In: Zeng, J., Qin, P., Jing, W., Song, X., Lu, Z. (eds) Data Science. ICPCSEE 2021. Communications in Computer and Information Science, vol 1452. Springer, Singapore. https://doi.org/10.1007/978-981-16-5943-0_20

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  • DOI: https://doi.org/10.1007/978-981-16-5943-0_20

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-5942-3

  • Online ISBN: 978-981-16-5943-0

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