Purpose

The short lifespan of digital signatures presents a challenge to the long-term preservation of digitally signed records. It can undermine attempts to presume, verify or assess their authenticity. This paper aims to investigate the challenges of the expiration of digital signatures in the context of digital archiving.

Design/methodology/approach

The paper identifies requirements for the long-term preservation of digitally signed records and compares them with the existing approaches. The characteristics, operational procedures and requirements of the technologies used for digital signatures are combined with the archival requirements to design a new model.

Findings

The paper proposes a new model of a blockchain-based system, which can be combined with any digital archive to assist the process of long-term preservation of digitally signed records.

Practical implications

The proposed model offers a new alternative to the current practice in the long-term preservation of digitally signed records, such as periodic resigning procedures or periodic wrapping of digitally signed records with archival timestamps.

Originality/value

The proposed TrustChain 2.0 model is based on previous research conducted as part of the InterPARES Trust project. It builds on TrustChain 1.0 by including digital signature certificate chain validity information in a blockchain thus avoiding the issues concerning records confidentiality and privacy information disclosure. The paper contributes not only to the development of archival science but also shows archival institutions on how to approach long-term preservation of digitally signed records.

中文翻译：

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区块链数字存档方法：数字签名认证链保存

目的

数字签名的寿命短，对数字签名记录的长期保存提出了挑战。它可能破坏假定，验证或评估其真实性的企图。本文旨在研究在数字归档的情况下数字签名到期的挑战。

设计/方法/方法

本文确定了长期保存数字签名记录的要求，并将其与现有方法进行了比较。将用于数字签名的技术的特性，操作程序和要求与存档要求结合起来，以设计一个新模型。

发现

本文提出了一种基于区块链的系统的新模型，该模型可以与任何数字档案库结合使用，以协助长期保存数字签名记录。

实际影响

提议的模型为长期保存数字签名记录提供了一种替代当前做法的新方法，例如定期辞职程序或使用存档时间戳定期包装数字签名记录。

创意/价值

提议的TrustChain 2.0模型基于InterPARES Trust项目的一部分先前的研究。它在TrustChain 1.0的基础上，通过将数字签名证书链有效性信息包含在区块链中，从而避免了与记录机密性和隐私信息泄露有关的问题。本文不仅为档案科学的发展做出了贡献，而且还为档案机构展示了如何进行数字签名记录的长期保存。