4.8 Article

CL-ME: Efficient Certificateless Matchmaking Encryption for Internet of Things

Journal

IEEE INTERNET OF THINGS JOURNAL
Volume 8, Issue 19, Pages 15010-15023

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JIOT.2021.3073008

Keywords

Encryption; Cryptography; Access control; Security; Receivers; Data privacy; Authentication; Certificateless; Internet of Things (IoT); lightweight; matchmaking encryption (ME); privacy preserving

Funding

  1. National Natural Science Foundation of China [U20A20176, 62072062, 61972294, 61932016, 61902111]
  2. Special Project on Science and Technology Program of Hubei Province [2020AEA013]
  3. Natural Science Foundation of Hubei Province [2020CFA052]
  4. Guangxi Key Laboratory of Trusted Software [KX202043]
  5. Wuhan Municipal Science and Technology Project [2020010601012187]

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The Internet of Things is transitioning from infancy to maturity, but challenges with data security and privacy persist. To address these challenges, a new cryptographic primitive named CL-ME is proposed, with two effective constructions based on standard hard assumptions. These proposed schemes are more suitable for IoT environment based on theoretical analysis and experimental evaluations.
The Internet of Things (IoT) is gradually stepping out of its infancy into maturity. Its widespread applications cover from tiny wearable devices to large industrial systems. Although many security solutions have been introduced to address data security and privacy problems caused by the unique characteristics of IoT, how to simultaneously achieve data confidentiality, protect the privacy of access control policy, and provide reasonable data source identification has been a challenging problem. Moreover, lacking one of the above properties may result in serious issues (e.g., leakage information and forging identity), and the situation grows steadily worse with the expansion of things scale. To address the above issues, we propose a new cryptographic primitive named certificateless matchmaking encryption (CL-ME), which inherits the security properties of certificateless cryptosystem and matchmaking encryption. Meanwhile, we also present two effective concrete constructions with formal security proofs based on the standard hard assumptions. The basic construction is the first instance of CL-ME based on bilinear pairing, and the enhanced construction is a pairing-free lightweight solution. Finally, we implement our proposed schemes using popular cryptography library and compare their performance with existing works. Theoretical analysis and experimental evaluations demonstrate that our proposed schemes are more suitable for IoT environment.

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