Identity-based puncturable signature scheme
To overcome the shortcomings of available forward-secure identity-based signature （IBS） scheme in terms of actual practicability and secret key update efficiency， the notion of identity-based puncturable signature （IBPS） scheme was proposed based on the idea of puncturable public-key encryption sche...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2021-12-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2021223/ |
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| Summary: | To overcome the shortcomings of available forward-secure identity-based signature （IBS） scheme in terms of actual practicability and secret key update efficiency， the notion of identity-based puncturable signature （IBPS） scheme was proposed based on the idea of puncturable public-key encryption scheme.Specifically， the syntax and security notion of IBPS were given， and then a concrete IBPS scheme was constructed based on Bloom filter.Under the computational Diffie-Hellman assumption， the proposed scheme achieved the existential unforgeability in the random oracle model.The performance analysis and implementation results demonstrate that， compared with traditional forward-secure IBS schemes， the proposed scheme provides more practical fine-grained forward secrecy， and has higher efficiency of secret key update. |
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| ISSN: | 1000-436X |