Attacks on One Designated Verifier Proxy Signature Scheme
In a designated verifier proxy signature scheme, there are three participants, namely, the original signer, the proxy signer, and the designated verifier. The original signer delegates his or her signing right to the proxy signer, then the proxy signer can generate valid signature on behalf of the o...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2012/508981 |
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| _version_ | 1832548901920440320 |
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| author | Baoyuan Kang |
| author_facet | Baoyuan Kang |
| author_sort | Baoyuan Kang |
| collection | DOAJ |
| description | In a designated verifier proxy signature scheme, there are three participants, namely, the original signer, the proxy signer, and the designated verifier. The original signer delegates his or her signing right to the proxy signer, then the proxy signer can generate valid signature on behalf of the original signer. But only the designated verifier can verify the proxy signature. Several designated verifier proxy signature schemes have been proposed. However, most of them were proven secure in the random oracle model, which has received a lot of criticism since the security proofs in the random oracle model are not sound with respect to the standard model. Recently, by employing Water's hashing technique, Yu et al. proposed a new construction of designated verifier proxy signature. They claimed that the new construction is the first designated verifier proxy signature, whose security does not rely on the random oracles. But, in this paper, we will show some attacks on Yu et al.'s scheme. So, their scheme is not secure. |
| format | Article |
| id | doaj-art-8d4417a34db84893b04b0e2deb9bd0aa |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-8d4417a34db84893b04b0e2deb9bd0aa2025-02-03T06:12:45ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/508981508981Attacks on One Designated Verifier Proxy Signature SchemeBaoyuan Kang0Computer Science and Software Institution, Tianjin Polytechnic University, 399 Binshuixi road, Tianjin 300387, ChinaIn a designated verifier proxy signature scheme, there are three participants, namely, the original signer, the proxy signer, and the designated verifier. The original signer delegates his or her signing right to the proxy signer, then the proxy signer can generate valid signature on behalf of the original signer. But only the designated verifier can verify the proxy signature. Several designated verifier proxy signature schemes have been proposed. However, most of them were proven secure in the random oracle model, which has received a lot of criticism since the security proofs in the random oracle model are not sound with respect to the standard model. Recently, by employing Water's hashing technique, Yu et al. proposed a new construction of designated verifier proxy signature. They claimed that the new construction is the first designated verifier proxy signature, whose security does not rely on the random oracles. But, in this paper, we will show some attacks on Yu et al.'s scheme. So, their scheme is not secure.http://dx.doi.org/10.1155/2012/508981 |
| spellingShingle | Baoyuan Kang Attacks on One Designated Verifier Proxy Signature Scheme Journal of Applied Mathematics |
| title | Attacks on One Designated Verifier Proxy Signature Scheme |
| title_full | Attacks on One Designated Verifier Proxy Signature Scheme |
| title_fullStr | Attacks on One Designated Verifier Proxy Signature Scheme |
| title_full_unstemmed | Attacks on One Designated Verifier Proxy Signature Scheme |
| title_short | Attacks on One Designated Verifier Proxy Signature Scheme |
| title_sort | attacks on one designated verifier proxy signature scheme |
| url | http://dx.doi.org/10.1155/2012/508981 |
| work_keys_str_mv | AT baoyuankang attacksononedesignatedverifierproxysignaturescheme |