Universal composable threshold signature
Threshold signature allowed any subset of t parties generating a signature,but that disallowed the creation of a valid signature if fewer than t parties participate in the protocol.Since the security of threshold signature was only con-sidered in a single instance before,the universal composability...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2009-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74650778/ |
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| _version_ | 1841537664519503872 |
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| author | HONG Xuan1 CHEN Ke-fei2 LI Qiang2 |
| author_facet | HONG Xuan1 CHEN Ke-fei2 LI Qiang2 |
| author_sort | HONG Xuan1 |
| collection | DOAJ |
| description | Threshold signature allowed any subset of t parties generating a signature,but that disallowed the creation of a valid signature if fewer than t parties participate in the protocol.Since the security of threshold signature was only con-sidered in a single instance before,the universal composability framework was introduced.The framework with its secu-rity preserving composition property allowed for modular design and analysis of the threshold signature.The defined ideal functionality of threshold signature is proved equals to the standard security notion of threshold signature.Further-more,how to applying the ideal functionality is described.The proposed threshold signature protocol and proactive threshold signature protocol are not only provably secure,but also universally composable. |
| format | Article |
| id | doaj-art-e99152bfb2f349cda8c1c116bd4f3f06 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2009-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e99152bfb2f349cda8c1c116bd4f3f062025-01-14T08:29:09ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2009-01-01301674650778Universal composable threshold signatureHONG Xuan1CHEN Ke-fei2LI Qiang2Threshold signature allowed any subset of t parties generating a signature,but that disallowed the creation of a valid signature if fewer than t parties participate in the protocol.Since the security of threshold signature was only con-sidered in a single instance before,the universal composability framework was introduced.The framework with its secu-rity preserving composition property allowed for modular design and analysis of the threshold signature.The defined ideal functionality of threshold signature is proved equals to the standard security notion of threshold signature.Further-more,how to applying the ideal functionality is described.The proposed threshold signature protocol and proactive threshold signature protocol are not only provably secure,but also universally composable.http://www.joconline.com.cn/zh/article/74650778/threshold signatureUC frameworkUC securityproactive threshold signature |
| spellingShingle | HONG Xuan1 CHEN Ke-fei2 LI Qiang2 Universal composable threshold signature Tongxin xuebao threshold signature UC framework UC security proactive threshold signature |
| title | Universal composable threshold signature |
| title_full | Universal composable threshold signature |
| title_fullStr | Universal composable threshold signature |
| title_full_unstemmed | Universal composable threshold signature |
| title_short | Universal composable threshold signature |
| title_sort | universal composable threshold signature |
| topic | threshold signature UC framework UC security proactive threshold signature |
| url | http://www.joconline.com.cn/zh/article/74650778/ |
| work_keys_str_mv | AT hongxuan1 universalcomposablethresholdsignature AT chenkefei2 universalcomposablethresholdsignature AT liqiang2 universalcomposablethresholdsignature |