A User-Centric Approach for Secured eDocument Transmission: Digital Signing Practical Issues and the eCert Solution

摘要

Digital signing is commonly used in eDocument security, but does not address all requirements such as fine-grained access control and content status validation. A system for distributing electronic educational certificates (eCertificates) is used as a case study in the eCert project. This paper describes the issues, identifies the required use cases, explores the gap between current techniques and the desired system, and presents a design which meets the requirements. A preliminary implementation confirms that the design is a sound one, and can be used to solve digital signing issues in related scenarios such as mobile IDs and healthcare records.