@inproceedings{afd79eb17f694b2eaaf22a5b1140bb15,
title = "On the security of a group signcryption scheme from distributed signcryption scheme",
abstract = "Signcryption denotes a cryptographic method, which can process encryption and digital signature simultaneously. So, adopting such schemes, computational cost of encryption and signature compared to traditional signature-then- encryption can be reduced to a great extent. Based on the existing distributed signcryption schemes, Kwak and Moon proposed a new distributed signcryption scheme with sender ID confidentiality and extended it to a group signcryption. Their scheme is more efficient in both communication and computation aspects. Unfortunately we will demonstrate that their scheme is insecure by identifying some security flaws. Exploring these flaws, an attacker without any secret can mount universal forging attacks. That is, anyone (not necessary the group member) can forge valid group signatures on arbitrary messages of his/her choice.",
author = "Haiyong Bao and Zhenfu Cao and Haifeng Qian",
year = "2005",
doi = "10.1007/11599371\_3",
language = "英语",
isbn = "3540308490",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
pages = "26--34",
booktitle = "Cryptology and Network Security - 4th International Conference, CANS 2005, Proceedings",
note = "4th International Conference on Cryptology and Network Security, CANS 2005 ; Conference date: 14-12-2005 Through 16-12-2005",
}