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A Novel Deterministic Threshold Proxy Re-Encryption Scheme From Lattices

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  • Na Hua

    (School of Mathematical Sciences, Heilongjiang University, China)

  • Juyan Li

    (School of Date Science and Technology, Heilongjiang University, China & Institute for Cryptology & Network Security, Heilongjiang University, China & Guangxi Key Laboratory of Cryptography and Information Security, Guilin University of Electronic Technology, China)

  • Kejia Zhang

    (School of Mathematical Sciences, Heilongjiang University, China & Institute for Cryptology & Network Security, Heilongjiang University, China)

  • Long Zhang

    (School of Mathematical Sciences, Heilongjiang University, China & Institute for Cryptology & Network Security, Heilongjiang University, China)

Abstract

Aiming at the problem that it is difficult to flexibly realize, the sharing and efficient search of encrypted data in large data-bases, this paper proposes a deterministic threshold proxy re-encryption scheme under the auxiliary input model. This scheme uses Shamir's secret sharing technology to achieve threshold control, uses homomorphic signature technology to verify the legitimacy of ciphertext, and applies deterministic algorithms to solve the search problem in large databases, while ensuring the user's control over their own data, and proves its security can reach indistinguishable semantic security (PRIV1-INDr) under the standard model. Compared with other schemes, this scheme not only shortens the length of the ciphertext and improves the decryption efficiency, but it also has anti-auxiliary input, robustness, and multi-hop characteristics and can better meet actual needs.

Suggested Citation

  • Na Hua & Juyan Li & Kejia Zhang & Long Zhang, 2022. "A Novel Deterministic Threshold Proxy Re-Encryption Scheme From Lattices," International Journal of Information Security and Privacy (IJISP), IGI Global, vol. 16(1), pages 1-17, January.
    • Handle: RePEc:igg:jisp00:v:16:y:2022:i:1:p:1-17
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    File URL: http://services.igi-global.com/resolvedoi/resolve.aspx?doi=10.4018/IJISP.310936
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