1 Scope
This document specifies a secured electronic postal service, referred to as the Electronic
Postal Certification Mark (EPCM) service, which provides a chain of evidence, stored
by an administration as a trusted third party, to prove the existence of an electronic
event, for a certain content, at a certain date and time, and involving one or more
identified parties.
The service is defined by reference to the concepts, schemas and operations defined
in CEN/TS 15121‑1, Postal Services — Hybrid Mail — Part 1: Secured electronic postal services (SePS)
interface specification — Concepts, schemas and operations. It requires support for five core SePS operations and permits optional support seven
others.
This version of the specification does not cover:
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— a description of the issues surrounding inter-operability between multiple postal SePS implementations when a business transaction Lifecycle requires the participation of more than one SePS implementation in a cross-border scenario involving two or more postal services;
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— issues surrounding SePS usage in a ‘multiple Certificate Authority’ scenario where inter-operating posts are participating in a cross-border transaction as described above;
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— examination of “Certificate Authority deployment model” alternatives necessitated by the cross-border scenarios described above.