@inproceedings{1412cd63388243c4b60f58df2dcf0694,
title = "Content extraction signatures",
abstract = "Motivated by emerging needs in online interactions, we define a new type of digital signature called a {\textquoteleft}Content Extraction Signature{\textquoteright} (CES). A CES allows the owner, Bob, of a document signed by Alice, to produce an {\textquoteleft}extracted signature{\textquoteright} on selected extracted portions of the original document, which can be verified (to originate from Alice) by any third party Cathy, without knowledge of the unextracted (removed) document portions. The new signature therefore achieves verifiable content extraction with minimal multi-party interaction. We specify desirable functional and security requirements from a CES (including an efficiency requirement: a CES should be more efficient in either computation or communication than the simple multiple signature solution). We propose and analyse four provably secure CES constructions which satisfy our requirements, and evaluate their performance characteristics.",
keywords = "Content blinding, Content verification, Content-extraction, Digital signatures, Fact verification, Fragment-extraction, Provable security",
author = "Ron Steinfeld and Laurence Bull and Yuliang Zheng",
year = "2002",
language = "English",
isbn = "3540433198",
volume = "2288",
series = "Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)",
publisher = "Springer, Springer Nature",
pages = "285--304",
editor = "Kwangjo Kim",
booktitle = "Information Security and Cryptology - ICISC 2001 - 4th International Conference, Proceedings",
address = "United States",
note = "4th International Conference on Information Security and Cryptology, ICISC 2001 ; Conference date: 06-12-2001 Through 07-12-2001",
}