Title: DIGITAL SIGNATURE SCHEME ENABLING PRE-CONTROL OF CONTENT EDITING FOR SECONDARY USE

Year of Publication: 2013
Page Numbers: 106-113
Authors: Tatsuhiko Sano, Yoshio Kakizaki, Masaki Inamura, Keiichi Iwamura
Conference Name: The Third International Conference on Digital Information Processing and Communications (ICDIPC2013)
- United Arab Emirates

Abstract:


In this study, we propose a digital signature scheme that enables the precontrol of content editing for secondary use. In the proposed scheme, the original content is divided into several parts, a unique signature is defined for each part, and aggregate signatures are created. The unique signatures are exhibited as individual signatures according to the first author’s scope of permission, and a secondary author can edit the content within these permission boundaries. For data insertion control, empty data is placed between the parts and controlled by a pairing operation using the aggregate signatures, whereby the verifier determines whether the editing is allowable. A sanitizable signature scheme is limited to deletions (sanitization). In the proposed scheme, not only deletions but also alterations to existing data and insertions of new data are possible.