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» A New Key-Insulated Signature Scheme
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PPDP
2005
Springer
14 years 3 months ago
A resolution strategy for verifying cryptographic protocols with CBC encryption and blind signatures
Formal methods have proved to be very useful for analyzing cryptographic protocols. However, most existing techniques apply to the case of abstract encryption schemes and pairing....
Véronique Cortier, Michaël Rusinowitch...
ITNG
2007
IEEE
14 years 4 months ago
An Improved Signcryption Scheme and Its Variation
Signcryption is a new cryptographic primitive which simultaneously provides both confidentiality and authenticity. This paper proposes an improved signcryption scheme and a varia...
Raylin Tso, Takeshi Okamoto, Eiji Okamoto
IACR
2011
173views more  IACR 2011»
12 years 9 months ago
All-But-Many Lossy Trapdoor Functions
We put forward a generalization of lossy trapdoor functions (LTFs). Namely, all-but-many lossy trapdoor functions (ABM-LTFs) are LTFs that are parametrized with tags. Each tag can...
Dennis Hofheinz
EUROCRYPT
2004
Springer
14 years 1 months ago
Anonymous Identification in Ad Hoc Groups
We introduce Ad Hoc Anonymous Identification schemes, a new multi-user cryptographic primitive that allows participants from a user population to form ad hoc groups, and then prove...
Yevgeniy Dodis, Aggelos Kiayias, Antonio Nicolosi,...
CSIE
2009
IEEE
14 years 4 months ago
An Enhanced-Security Fair E-payment Protocol
Customers are usually passive in an electronic commerce transaction. Based on a new two times concurrent signature, this article presents a fair electronic payment (E-payment) pro...
Wei Fan, Huaying Shu, Elizabeth Fife, Qiang Yan