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An Optimistic Fair Non-Repudiation Protocol with Semi-Trusted Third Party
DU Hong-Zhen, LI Yan-Ping, ZHANG Jian-Zhong
中国科学院大学学报 . 2006, (3): 377 -381 .  DOI: 10.7523/j.issn.2095-6134.2006.3.015