Server-Assisted Forward-Secure Threshold Signature
Forward secure signature can protect the security of signatures previous to the key exposure. Server-assisted signature is a special digital signature in which the signer allies one server to produce the signatures. In this paper, server-assisted for-ward-secure threshold signature is proposed. The...
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| Veröffentlicht in: | Wuhan University journal of natural sciences 2008-08, Vol.13 (4), p.421-424 |
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| container_title | Wuhan University journal of natural sciences |
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| creator | Yu, Jia Kong, Fanyu Hao, Rong Li, Xuliang |
| description | Forward secure signature can protect the security of signatures previous to the key exposure. Server-assisted signature is a special digital signature in which the signer allies one server to produce the signatures. In this paper, server-assisted for-ward-secure threshold signature is proposed. The system is composed of n1 servers and n2 users. Each user and each server holds a partial secret, respectively. To produce a valid signature, users and servers need to cooperate to complete the work. The partial secrets of the users and servers are updated by a one-way function at regular intervals, while the public key is always fixed. Even if all the current partial secrets are exposed, the signatures pertaining to previous periods are still valid. |
| doi_str_mv | 10.1007/s11859-008-0408-6 |
| format | Article |
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Server-assisted signature is a special digital signature in which the signer allies one server to produce the signatures. In this paper, server-assisted for-ward-secure threshold signature is proposed. The system is composed of n1 servers and n2 users. Each user and each server holds a partial secret, respectively. To produce a valid signature, users and servers need to cooperate to complete the work. The partial secrets of the users and servers are updated by a one-way function at regular intervals, while the public key is always fixed. 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| identifier | ISSN: 1007-1202 |
| ispartof | Wuhan University journal of natural sciences, 2008-08, Vol.13 (4), p.421-424 |
| issn | 1007-1202 1993-4998 |
| language | eng |
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| subjects | Biomedical and Life Sciences Computer Science Life Sciences Materials Science Workshop on Semantic Web and Ontology 2008 (SWON 2008) 加密技术 发出安全性 密码学 阈值符号 |
| title | Server-Assisted Forward-Secure Threshold Signature |
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