ID-based efficient and proactive threshold proxy signature in the standard model
The security of existing identity-based threshold proxy signature schemes were almost proven in the random oracle model,and each proxy signer’s proxy signature key was fixed in the valid period.A（t,n） ID-based proactive threshold proxy signature scheme（IBTPTS） was presented by using the publicly ver...
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| Main Authors: | , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2011-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74419804/ |
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| Summary: | The security of existing identity-based threshold proxy signature schemes were almost proven in the random oracle model,and each proxy signer’s proxy signature key was fixed in the valid period.A（t,n） ID-based proactive threshold proxy signature scheme（IBTPTS） was presented by using the publicly verifiable secret sharing technology,based on existential identity-based signature scheme.The scheme was proved to be safe in the standard model.Each proxy signer’s proxy signature key can be updated regularly,and proxy signature verifying procedure only needs const bi-linear pairings.Therefore the scheme has better dynamic security and higher efficiency. |
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| ISSN: | 1000-436X |