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CCS
2007
ACM
14 years 4 months ago
Ordered multisignatures and identity-based sequential aggregate signatures, with applications to secure routing
We construct two new multiparty digital signature schemes that allow multiple signers to sequentially produce a compact, fixed-length signature. First, we introduce a new primiti...
Alexandra Boldyreva, Craig Gentry, Adam O'Neill, D...
PKC
2010
Springer
187views Cryptology» more  PKC 2010»
13 years 12 months ago
Confidential Signatures and Deterministic Signcryption
Encrypt-and-sign, where one encrypts and signs a message in parallel, is usually not recommended for confidential message transmission. The reason is that the signature typically l...
Alexander W. Dent, Marc Fischlin, Mark Manulis, Ma...
ASIACRYPT
2009
Springer
14 years 4 months ago
A Framework for Universally Composable Non-committing Blind Signatures
A universally composable (UC) blind signature functionality requres users to commit to the message to be blindly signed. It is thereby impossible to realize in the plain model. Th...
Masayuki Abe, Miyako Ohkubo
ASIACRYPT
2005
Springer
14 years 3 months ago
Discrete-Log-Based Signatures May Not Be Equivalent to Discrete Log
Abstract We provide evidence that the unforgeability of several discrete-log based signatures like Schnorr signatures cannot be equivalent to the discrete log problem in the standa...
Pascal Paillier, Damien Vergnaud
ACISP
2004
Springer
14 years 3 months ago
Weak Property of Malleability in NTRUSign
A new type of signature scheme, called NTRUSign, based on solving the approximately closest vector problem in a NTRU lattice was proposed at CT-RSA’03. However no security proof ...
SungJun Min, Go Yamamoto, Kwangjo Kim