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Hashing of RDF graphs and a solution to the blank node problem

: Höfig, Edzard; Schieferdecker, Ina

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Bobillo, Fernando (Ed.):
10th International Workshop on Uncertainty Reasoning for the Semantic Web, URSW 2014. Proceedings : Colocated with the 13th International Semantic Web Conference (ISWC 2014); Riva del Garda, Italy, October 19, 2014
Riva del Garda, 2014 (CEUR Workshop Proceedings 1259)
International Workshop on Uncertainty Reasoning for the Semantic Web (URSW) <10, 2014, Riva del Garda>
International Semantic Web Conference (ISWC) <13, 2014, Riva del Garda>
Conference Paper, Electronic Publication
Fraunhofer FOKUS ()

The ability to calculate hash values is fundamental for using cryptographic tools, such as digital signatures, with RDF data. Without hashing it is difficult to implement tamper-resistant attribution or provenance tracking, both important for establishing trust with open data. We propose a novel hash function for RDF graphs, which does not require altering the contents of the graph, does not need to record additional information, and does not depend on a concrete RDF syntax. We are also presenting a solution to the deterministic blank node labeling problem.