Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks
Signcryption is a useful cryptographic primitive that achieves confidentiality and authentication in an efficient manner. As an extension of signcryption in certificate-based cryptography, certificate-based signcryption preserves the merits of certificate-based cryptography and signcryption simultan...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/295419 |
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| _version_ | 1832558184149024768 |
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| author | Yang Lu Jiguo Li |
| author_facet | Yang Lu Jiguo Li |
| author_sort | Yang Lu |
| collection | DOAJ |
| description | Signcryption is a useful cryptographic primitive that achieves confidentiality and authentication in an efficient manner. As an extension of signcryption in certificate-based cryptography, certificate-based signcryption preserves the merits of certificate-based cryptography and signcryption simultaneously. In this paper, we present an improved security model of certificate-based signcryption that covers both public key replacement attack and insider security. We show that an existing certificate-based signcryption scheme is insecure in our model. We also propose a new certificate-based signcryption scheme that achieves security against both public key replacement attacks and insider attacks. We prove in the random oracle model that the proposed scheme is chosen-ciphertext secure and existentially unforgeable. Performance analysis shows that the proposed scheme outperforms all the previous certificate-based signcryption schemes in the literature. |
| format | Article |
| id | doaj-art-7658fe623bf24f5b91cf10c3a259988d |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-7658fe623bf24f5b91cf10c3a259988d2025-02-03T01:33:05ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/295419295419Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider AttacksYang Lu0Jiguo Li1College of Computer and Information Engineering, Hohai University, No. 8, Focheng Xi Road, Jiangning District, Nanjing, Jiangsu 211100, ChinaCollege of Computer and Information Engineering, Hohai University, No. 8, Focheng Xi Road, Jiangning District, Nanjing, Jiangsu 211100, ChinaSigncryption is a useful cryptographic primitive that achieves confidentiality and authentication in an efficient manner. As an extension of signcryption in certificate-based cryptography, certificate-based signcryption preserves the merits of certificate-based cryptography and signcryption simultaneously. In this paper, we present an improved security model of certificate-based signcryption that covers both public key replacement attack and insider security. We show that an existing certificate-based signcryption scheme is insecure in our model. We also propose a new certificate-based signcryption scheme that achieves security against both public key replacement attacks and insider attacks. We prove in the random oracle model that the proposed scheme is chosen-ciphertext secure and existentially unforgeable. Performance analysis shows that the proposed scheme outperforms all the previous certificate-based signcryption schemes in the literature.http://dx.doi.org/10.1155/2014/295419 |
| spellingShingle | Yang Lu Jiguo Li Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks The Scientific World Journal |
| title | Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks |
| title_full | Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks |
| title_fullStr | Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks |
| title_full_unstemmed | Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks |
| title_short | Efficient Certificate-Based Signcryption Secure against Public Key Replacement Attacks and Insider Attacks |
| title_sort | efficient certificate based signcryption secure against public key replacement attacks and insider attacks |
| url | http://dx.doi.org/10.1155/2014/295419 |
| work_keys_str_mv | AT yanglu efficientcertificatebasedsigncryptionsecureagainstpublickeyreplacementattacksandinsiderattacks AT jiguoli efficientcertificatebasedsigncryptionsecureagainstpublickeyreplacementattacksandinsiderattacks |