本文针对异构系统环境下电子档案凭证性保障的核心问题,提出基于身份证的电子档案凭证性保障思路,明确了电子档案身份证的概念,分析了电子档案身份证的构成要素,提出了电子档案身份证的构造方法,研究了基于身份证的电子档案真实性保障的工作原理,探讨了异构系统中电子档案凭证性保障的关键技术和实现方法。 Aiming at the core issue of voucher assurance in electronic archives under heterogeneous system environment, this paper proposes a voucher assurance scheme based on ID card, clarifies the concept of electronic file ID card, analyzes the components of electronic file ID card, The construction method of file ID card, the working principle of authenticity of electronic file based on ID card is researched, and the key technology and realization method of electronic file voucher assurance in heterogeneous system are discussed.