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Invisibly Sanitizable Signature without Pairings

Dae Hyun YUM, Pil Joong LEE

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Summary :

Sanitizable signatures allow sanitizers to delete some pre-determined parts of a signed document without invalidating the signature. While ordinary sanitizable signatures allow verifiers to know how many subdocuments have been sanitized, invisibly sanitizable signatures do not leave any clue to the sanitized subdocuments; verifiers do not know whether or not sanitizing has been performed. Previous invisibly sanitizable signature scheme was constructed based on aggregate signature with pairings. In this article, we present the first invisibly sanitizable signature without using pairings. Our proposed scheme is secure under the RSA assumption.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.6 pp.1541-1543
Publication Date
2009/06/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E92.A.1541
Type of Manuscript
LETTER
Category
Cryptography and Information Security

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