Paper 2012/499

Authenticity, Integrity and Proof of Existence for Long-Term Archiving: a Survey

Martín A. G. Vigil, Daniel Cabarcas, Alexander Wiesmaier, and Johannes Buchmann


Electronic archives are increasingly being used to store information that needs to be available for a long time such as land register information and medical records. In order for the data in such archives to remain useful, their integrity and authenticity must be protected over their entire life span. Also, in many cases it must be possible to prove that the data existed at a certain point in time. In this paper we survey solutions that provide long-term integrity, authenticity, and proof of existence of archived data. We analyze which trust assumptions they require and compare their efficiency. Based on our analysis, we discuss open problems and promising research directions.

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Published elsewhere. This paper will be submitted to Designs, Codes and Cryptography, Springer.
Long termArchivingAuthenticityIntegrityProof of Existence
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vigil @ cdc informatik tu-darmstadt de
2015-02-27: withdrawn
2012-09-03: received
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