Evidentiary value preservation in accordance with TR ESOR

Document archiving changes
The specifications for the long-term archiving of digital items have changed in recent years and present business and authorities alike with new tasks. Because of legal regulations, ordinances and compliance requirements, companies must archive large quantities of documents and preserve their evidentiary value for decades. Heretofore, this was mostly achieved using paper-based archives. Although electronic archiving is considerably more cost-efficient, the requirement of having to prove the integrity and authenticity of a document often prevents the abolition of said paper archives. With the Technical Guideline on Preservation of Evidentiary Value for Cryptographically Signed Documents (TR ESOR) worked out by the BSI, there now exists a guide which describes how electronically signed data and documents can be reliably saved for long periods of time – up to the end of the required retention periods.

New technological requirements
The electronic protection methods must therefore be reliable and legally robust, capable of being easily integrated into existing structures as well as, ideally, not requiring any special knowledge of the underlying technologies. In addition, migration-capable data should be created, which supplement the audit-proof process and thereby allows simple transfer to other systems or new storage technologies in a way that complies with the legislation in place.

Digital long-term archiving

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