Quantum-security Certificateless Bidirectional Proxy Re-encryption for Cloud Data Sharing

doi:10.3969/j.issn.1671-1122.2018.08.003

Netinfo Security ›› 2018, Vol. 18 ›› Issue (8): 17-24.doi: 10.3969/j.issn.1671-1122.2018.08.003

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Quantum-security Certificateless Bidirectional Proxy Re-encryption for Cloud Data Sharing

Mingming JIANG^1,⁴, Lijun ZHAO², Yan WANG³, Baocang WANG⁴

1. School of Computer Science and Technology, Huaibei Normal University, Huaibei Anhui 235000, China
2.Weinan Municipal Public Security Bureau, Weinan Shaanxi 714000, China
3. School of Mathematical Science, Huaibei Normal University, Huaibei Anhui 235000, China
4. State Key Lab of Integrated Service Networks, Xidian University, Xi’an Shaanxi 710071, China;

Received:2018-06-10 Online:2018-08-20 Published:2020-05-11

Abstract

Abstract:

For the security and private of cloud data sharing in the open cloud computing, this paper uses the Gauss sample technology to construct a certificateless proxy re-encryption scheme based on learning with errors (LWE) problem. In this scheme, the cloud server can use the proxy re-encryption keys by two users authorized to convert ciphertexts of one user to each other, which not only realizes the data sharing problem in cloud storage, but also solves the privacy protection problem of user data. The scheme not only realizes the function of proxy re-encryption, but also solves the certificate management problem in public key infrastructure and the key escrow problem in identity-based cryptosystem. The proposed scheme is proved semantic secure against adaptive chosen plaintext attack in the standard mode based on learning with errors(LWE) problem. More importantly, the scheme is also safe in the quantum environment.

Key words: proxy re-encryption, lattice cryptography, Gaussian sampling, certificateless cryptography

CLC Number:

TP309

Mingming JIANG, Lijun ZHAO, Yan WANG, Baocang WANG. Quantum-security Certificateless Bidirectional Proxy Re-encryption for Cloud Data Sharing[J]. Netinfo Security, 2018, 18(8): 17-24.

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Quantum-security Certificateless Bidirectional Proxy Re-encryption for Cloud Data Sharing

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