| Presentation | 2006-04-11 Cryptanalysis of A Threshold Signature Scheme for Group Communications without a Shared Distribution Center(WSANE2006) Liaojun Pang, Huixian Li, Yumin Wang, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, Chang, Yang and Hwang proposed a threshold signature scheme for group communications without a shared distribution center, which includes a (t, n) threshold signature process and a (k, l) threshold verification process. In their scheme, any t participants can represent a group (signing group) to sign a message, and any k participants can represent another group (verifying group) to verify the signature. However, their scheme is insecure. In this paper, we shall make some cryptanalysis on their scheme and show that it violates the requirement upon the (t, n) threshold signature with (k, l) threshold-shared verification. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Cryptanalysis / Digital signature / Threshold cryptosystem / Information security |
| Paper # | SANE2006-43 |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 2006/4/3(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Cryptanalysis of A Threshold Signature Scheme for Group Communications without a Shared Distribution Center(WSANE2006) |
| Sub Title (in English) | |
| Keyword(1) | Cryptanalysis |
| Keyword(2) | Digital signature |
| Keyword(3) | Threshold cryptosystem |
| Keyword(4) | Information security |
| 1st Author's Name | Liaojun Pang |
| 1st Author's Affiliation | State Key Lab. of Integrated Service Networks, Xidian Univ.() |
| 2nd Author's Name | Huixian Li |
| 2nd Author's Affiliation | State Key Lab. of Integrated Service Networks, Xidian Univ. |
| 3rd Author's Name | Yumin Wang |
| 3rd Author's Affiliation | State Key Lab. of Integrated Service Networks, Xidian Univ. |
| Date | 2006-04-11 |
| Paper # | SANE2006-43 |
| Volume (vol) | vol.106 |
| Number (no) | 1 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |