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CISC
2009
Springer
171views Cryptology» more  CISC 2009»
13 years 7 months ago
Sanitizable Signatures with Strong Transparency in the Standard Model
Sanitizable signatures provide several security features which are useful in many scenarios including military and medical applications. Sanitizable signatures allow a semi-trusted...
Shivank Agrawal, Swarun Kumar, Amjed Shareef, C. P...
CSJM
2006
114views more  CSJM 2006»
13 years 10 months ago
Cryptoschemes Based on New Signature Formation Mechanism
Several variants of new digital signature schemes (DSS) based on the discrete logarithm and factorization problems have been proposed. Considered DSS are characterized in that a n...
Alexander A. Moldovyan, Dmitriy N. Moldovyan, L. V...
FOCS
2007
IEEE
14 years 4 months ago
Lower Bounds on Signatures From Symmetric Primitives
We show that every construction of one-time signature schemes from a random oracle achieves black-box security at most 2(1+o(1))q , where q is the total number of oracle queries a...
Boaz Barak, Mohammad Mahmoody-Ghidary
EUROCRYPT
2006
Springer
14 years 1 months ago
Learning a Parallelepiped: Cryptanalysis of GGH and NTRU Signatures
Abstract. Lattice-based signature schemes following the GoldreichGoldwasser-Halevi (GGH) design have the unusual property that each signature leaks information on the signer's...
Phong Q. Nguyen, Oded Regev
CANS
2007
Springer
96views Cryptology» more  CANS 2007»
14 years 4 months ago
Anonymity 2.0 - X.509 Extensions Supporting Privacy-Friendly Authentication
Abstract. We present a semantic extension to X.509 certificates that allows incorporating new anonymity signature schemes into the X.509 framework. This fact entails advantages to...
Vicente Benjumea, Seung Geol Choi, Javier Lopez, M...