- 期刊
- OpenAccess
New Forward-secure Signature Scheme with Untrusted Update
並列摘要
Forward-secure signatures can be used to limit the damage of secret key exposure for digital signatures. In a forward-secure signature scheme, the exposure of current secret key doesn't affect the security of signatures generated in previous periods. In order to integrate this primitive into standard security architectures, Boyen et al. presented a forward-secure signature scheme with untrusted update in the standard model. In this study, we propose another forward-secure signature scheme with untrusted update in the random oracle model. Compared with Boyen's scheme, this scheme has shorter public key, secret key and better key generation algorithm, update algorithm, encrypted key verifying algorithm and signing algorithm. At last, we prove that the scheme is update secure and forward secure under CDH assumption in the random oracle model.
延伸閱讀
- Hwang, M. S., Li, H. W., & Yang, C. Y. (2023). An Improved of Enhancements of a User Authentication Scheme. International Journal of Network Security, 25(3), 508-514. https://doi.org/10.6633/IJNS.202305_25(3).15
- Wu, S. H., & Zhu, Y. F. (2008). Proof of Forward Security for Password-Based Authenticated Key Exchange. International Journal of Network Security, 7(3), 335-341. https://doi.org/10.6633/IJNS.200811.7(3).04
- Krishna, A. V. N., Narayana, A. H., & Murthy, S. K. (2017). A Hybrid Digital Signature Scheme on Dependable and Secure Data. International Journal of Electronics and Information Engineering, 6(2), 87-93. https://doi.org/10.6636/IJEIE.201706.6(2).03
- Ma, C. B., & Ao, J. (2011). Certificateless Group Oriented Signature Secure against Key Replacement Attack. International Journal of Network Security, 12(1), 1-6. https://doi.org/10.6633/IJNS.201101.12(1).01
- Zhang, X. J., & Xu, C. X. (2015). A Practical Forward-Secure Public-Key Encryption Scheme with Untrusted Update. International Journal of Network Security, 17(5), 619-628. https://doi.org/10.6633/IJNS.201509.17(5).13