一种基于轮的数字时间戳研究与实现

A Time-stamping Scheme Based on Rounds

为了探讨数字时间戳技术,为电子文档的版权提供有效保护,克服当前时间戳方案验证中仍存在的效率问题,在分析了现有的几个时间戳方案基础上,结合线性链接方案和树形方案的特性,提出了基于轮的改进方案.经验证,该方案缩短了在时间戳验证过程中时间戳验证链的长度,且能有效地防止时间戳篡改问题的发生.

Digital time-stamping is technique as the necessary support to legal use of electronic documents. After analyzing the existed time-stamping schemes, this paper proposes the advancement version of scheme based on rounds which integrates the properties of Linear Linking Scheme and Tree-Like Scheme and shortens the length of verification linking path in single verification of time-stamping documents for solving the problem of ineffective verification of the current schemes.