Multi-authority attribute-based identification scheme
Based on the problem that the existing attribute-based identification scheme is all based on one single authority, which has a key escrow problem, that is, the key generation center knows all users’ private keys, an multi-authority attribute-based identification scheme was proposed.Distributed key g...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2021-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021047/ |
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| Summary: | Based on the problem that the existing attribute-based identification scheme is all based on one single authority, which has a key escrow problem, that is, the key generation center knows all users’ private keys, an multi-authority attribute-based identification scheme was proposed.Distributed key generation technology was integrated to realize the (t,n) threshold generation mechanism of the user’s private key, which could resist collusion attacks from at most t-1 authorities.Utilizing bilinear mapping, a specific multi-authority attribute-based identification scheme was constructed.The security, computation cost and communication cost of the proposed scheme was analyzed, and it was compared with the same type of schemes.Finally, taking multi-factor identification as an example, the feasibility of the proposed scheme in the application scenario of electronic credentials was analyzed.The result shows that the proposed scheme has better comprehensive performance. |
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| ISSN: | 1000-436X |