Extended sanitizable signatures
WebOn Extended Sanitizable Signature Schemes Amandine Jambert Abstract Sanitizable signature schemes allow a semi-trusted entity to modify some specific portions of a signed message while keeping a valid signature of the original off-line signer. WebAn extended abstract of this paper appears at PKC’19. Efficient Invisible and Unlinkable Sanitizable Signatures (Full Version) Xavier Bultel1, Pascal Lafourcade2, Russell W. F. Lai 3, Giulio Malavolta3, Dominique Schroder¨ , and Sri Aravinda Krishnan Thyagarajan3 1 Univ Rennes, CNRS, IRISA 2 University Clermont Auvergne, LIMOS, France 3 Friedrich …
Extended sanitizable signatures
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WebSanitizable signatures have been introduced by Ateniese et al. (ESORICS 2005) and allow an authorized party, the sanitizer, to modify a predetermined part of a signed message without invalidating the signature. Brzuska et al. (PKC 2009) gave the first comprehensive formal treatment of the five security properties for such schemes. WebA notion stronger than privacy, but weaker than unlinkability is proposed, which captures privacy in the original sense and allows to easily construct efficient schemes satisfying this notion from secure existing schemes in a black-box fashion. Sanitizable signatures, introduced by Ateniese et al. at ESORICS'05, allow to issue a signature on a message …
Web(tightly) secure signature schemes [11,44,52], but also sanitizable signature schemes [4,15,41] and identity-based encryption schemes [61]. Moreover they are useful in context of trapdoor-commitments, direct anonymous attestation, ... extended framework for chameleon-hashes (without ephemeral trapdoors) first. ... WebSanitizable signature schemes (SSS), as well as redactable signature schemes (RSS), gained a lot of attention in the recent past. In a nutshell, both types of signature schemes allow to alter signed data in a controlled way by a, potentially semi-trusted, third party. ... Rethinking privacy for extended sanitizable signatures and a black-box ...
WebThis paper proposes two provably secure and length- hiding redactable signature schemes that have a runtime complex of O(n) and protects the integrity of the elements in unordered (multi-)sets, with a storage complexity ofO(1). In this paper, we propose two provably secure and length- hiding redactable signature schemes. Both have a runtime complex- ity of … WebSep 2, 2013 · This work allows for accountability for sanitizable signatures with transparency on the block-level, and derives a provably secure construction that achieves efficient group-level non-interactive public accountability. Sanitizable signature schemes allow for altering signed data in a signer-controlled way by a semi-trusted third party. …
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WebAug 31, 2015 · Sanitizable signatures are a variant of digital signatures where a designated party (the sanitizer) can update admissible parts of a signed message. At PKC ’17, Camenisch et al. introduced... slch test catalogWebNov 7, 2014 · Extended Sanitizable Signatures • Properties • Unlinkability A sanitizer first sanitizes a specific message m to m’, then alters the signature to The same sanitizer then sanitizes m to m’’ and alters the … slch therapy servicesWebAug 24, 2015 · This work proposes an extended security model, where the signer explicitly controls among which nodes new edges can be added, and presents a provably secure construction based on accumulators with the enhanced notions of indistinguishability and strong one-wayness. 10 PDF View 1 excerpt, references background slch teaching toolsWebSanitizable signatures allow a signer of a message to give one specific receiver, called a sanitizer, the power to modify some designated parts of the signed message. ... On Extended Sanitizable Signature Schemes. In: Pieprzyk, J. (ed.) CT-RSA 2010. LNCS, vol. 5985, pp. 179–194. Springer, Heidelberg (2010) CrossRef Google Scholar slcharacterencoding windows-1252WebNov 9, 2006 · The 26 revised full papers cover such topics as hash functions, block and stream ciphers, network security and access control, mobile communications security, forensics, copyright protection,... slch west countyWebSanitizable signature schemes (SSS), as well as redactable signature schemes (RSS), gained a lot of attention in the recent past. In a nutshell, both types of signature … slch test directoryWebNov 25, 2015 · This work constructs (non-accountable) invisible and unlinkable sanitizable signatures from signatures on equivalence classes and other basic primitives and puts … slchc faculty portal