| 한글제목(Korean Title) |
New Construction of Short Certificate-Based Signature against Existential Forgery Attacks |
| 영문제목(English Title) |
New Construction of Short Certificate-Based Signature against Existential Forgery Attacks |
| 저자(Author) |
Yang Lu
Gang Wang
Jiguo Li
Jian Shen
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| 원문수록처(Citation) |
VOL 11 NO. 07 PP. 3629 ~ 3647 (2017. 07) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Certificate-based cryptography is a useful public key cryptographic primitive that combines the merits of traditional public key cryptography and identity-based cryptography. It not only solves the key escrow problem inherent in identity-based cryptography, but also simplifies the cumbersome certificate management problem in traditional public key cryptography. So far, four short certificate-based signature schemes have been proposed. However, three of them fail in achieving the existential unforgeability under adaptive chosen-message attacks and the remaining one was not constructed in the normal framework of certificate-based signature. In this paper, we put forward a new short certificate-based signature scheme. The proposed scheme is devised in the normal framework of certificate-based signature and overcomes the security weaknesses in the previous short certificate-based signature schemes. In the random oracle model, we formally prove that it achieves the existential unforgeability against adaptive chosen-message attacks. Performance comparison shows that it is efficient and practical.
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| 키워드(Keyword) |
Certificate-based cryptography
short signature
bilinear pairing
existential unforgeability
random oracle model
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| 파일첨부 |
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