Secure notarization of paper text documents

Authors:
Matthias Ruhl;Marshall Bern;David Goldberg
Affiliations:
M.I.T. Laboratory for Computer Science, Cambridge, MA;Zerox Parc, Palo Alto, CA;Zerox Parc, Palo Alto, CA
Venue:
SODA '01 Proceedings of the twelfth annual ACM-SIAM symposium on Discrete algorithms
Year:
2001

Citing 1
Cited 1

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Trustworthy Paper Documents

IHW '01 Proceedings of the 4th International Workshop on Information Hiding

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Abstract

We present a method to notarize a paper document. This method computes a set of features from the page, inputs these features into a hash function, digitally signs the output, and then prints the resulting signature on the page. The notarized document is self-contained: verification does not require reference to online information.