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Assessing Trust in the Long-Term Protection of Documents

Vigil, Martín ; Cabarcas, Daniel ; Huang, Jingwei ; Buchmann, Johannes (2013)
Assessing Trust in the Long-Term Protection of Documents.
Split, Croatia
Conference or Workshop Item, Bibliographie

Abstract

Digital archives rely on trusted parties, such as Certification Authorities, to ensure authenticity, integrity and proof of existence protection for documents. In this paper, we analyse the trust assumptions that a verifier has to make in order to trust in the protection of a document. We show that trust fades out in the long term due to the ever-growing number of trusted parties. Despite of such a dire prospect, current technologies, such as X.509 PKI, do not assess trust, thereby leaving verifiers in the dark. We present a certification scheme for documents that provides verifiers with a better assessment of trust than in X.509 PKI. In the proposed scheme, trusted parties are rated based on the correctness of their performance. From the ratings, verifiers can assess quantitatively the trust in the trusted parties for the short term, and in the protection of documents for the long term. The proposed scheme encourages trusted parties to work properly.

Item Type: Conference or Workshop Item
Erschienen: 2013
Creators: Vigil, Martín ; Cabarcas, Daniel ; Huang, Jingwei ; Buchmann, Johannes
Type of entry: Bibliographie
Title: Assessing Trust in the Long-Term Protection of Documents
Language: English
Date: July 2013
Book Title: 18th IEEE Symposium on Computers and Communications (IEEE ISCC 2013)
Event Location: Split, Croatia
Abstract:

Digital archives rely on trusted parties, such as Certification Authorities, to ensure authenticity, integrity and proof of existence protection for documents. In this paper, we analyse the trust assumptions that a verifier has to make in order to trust in the protection of a document. We show that trust fades out in the long term due to the ever-growing number of trusted parties. Despite of such a dire prospect, current technologies, such as X.509 PKI, do not assess trust, thereby leaving verifiers in the dark. We present a certification scheme for documents that provides verifiers with a better assessment of trust than in X.509 PKI. In the proposed scheme, trusted parties are rated based on the correctness of their performance. From the ratings, verifiers can assess quantitatively the trust in the trusted parties for the short term, and in the protection of documents for the long term. The proposed scheme encourages trusted parties to work properly.

Uncontrolled Keywords: Secure Data;trust;long-term;timestamping;notarisation;authenticity;proof of existence
Identification Number: TUD-CS-2013-0085
Divisions: 20 Department of Computer Science > Theoretical Computer Science - Cryptography and Computer Algebra
LOEWE > LOEWE-Zentren > CASED – Center for Advanced Security Research Darmstadt
Profile Areas > Cybersecurity (CYSEC)
LOEWE > LOEWE-Zentren
20 Department of Computer Science
Profile Areas
LOEWE
Date Deposited: 04 Aug 2016 15:08
Last Modified: 17 May 2018 13:02
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