Graduate School and Research Center in Digital Sciences

Verifiable document redacting

Chabanne, Hervé; Hugel, Rodolphe; Keuffer, Julien

ESORICS 2017, European Symposium on Research in Computer Security, September 11-15, 2017, Oslo, Norway / Also Part of the Lecture Notes in Computer Science book series (LNCS, Vol. 10492)

In 2016, Naveh and Tromer introduced PhotoProof, a novel approach to image authentication based on cryptographic proofs. We here show how to simplify PhotoProof to get a protocol closely related to redactable signature schemes. From an authenticated breeder document, we only keep the necessary fields to prove what its owner wants to assert and black out all the others to remove sensitive data from the document. We efficiently instantiate our scheme and give implementation results that show its practicality.

Document Doi Bibtex

Title:Verifiable document redacting
Keywords:Data privacy, zk-SNARK, Redactable signatures
Type:Conference
Language:English
City:Oslo
Country:NORWAY
Date:
Department:Digital Security
Eurecom ref:5311
Copyright: © Springer. Personal use of this material is permitted. The definitive version of this paper was published in ESORICS 2017, European Symposium on Research in Computer Security, September 11-15, 2017, Oslo, Norway / Also Part of the Lecture Notes in Computer Science book series (LNCS, Vol. 10492) and is available at : http://dx.doi.org/10.1007/978-3-319-66402-6_20
Bibtex: @inproceedings{EURECOM+5311, doi = {http://dx.doi.org/10.1007/978-3-319-66402-6_20}, year = {2017}, title = {{V}erifiable document redacting}, author = {{C}habanne, {H}erv{\'e} and {H}ugel, {R}odolphe and {K}euffer, {J}ulien}, booktitle = {{ESORICS} 2017, {E}uropean {S}ymposium on {R}esearch in {C}omputer {S}ecurity, {S}eptember 11-15, 2017, {O}slo, {N}orway / {A}lso {P}art of the {L}ecture {N}otes in {C}omputer {S}cience book series ({LNCS}, {V}ol. 10492)}, address = {{O}slo, {NORWAY}}, month = {09}, url = {http://www.eurecom.fr/publication/5311} }
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