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IEEECIT
2005
IEEE
14 years 2 months ago
Identity Based Threshold Proxy Signcryption Scheme
An identity based cryptosystem is a novel type of public cryptographic scheme in which the public keys of the users are their identities or strings derived from their identities. ...
Meng Wang, Zhijing Liu
EUROCRYPT
2004
Springer
14 years 2 months ago
Practical Large-Scale Distributed Key Generation
Generating a distributed key, where a constant fraction of the players can reconstruct the key, is an essential component of many largescale distributed computing tasks such as ful...
John F. Canny, Stephen Sorkin
CRYPTO
2011
Springer
245views Cryptology» more  CRYPTO 2011»
12 years 8 months ago
Fully Homomorphic Encryption from Ring-LWE and Security for Key Dependent Messages
We present a somewhat homomorphic encryption scheme that is both very simple to describe and analyze, and whose security (quantumly) reduces to the worst-case hardness of problems ...
Zvika Brakerski, Vinod Vaikuntanathan
PKC
2009
Springer
102views Cryptology» more  PKC 2009»
14 years 9 months ago
A Practical Key Recovery Attack on Basic TCHo
TCHo is a public key encryption scheme based on a stream cipher component, which is particular suitable for low cost devices like RFIDs. In its basic version, TCHo offers no IND-CC...
Mathias Herrmann, Gregor Leander
GI
2004
Springer
14 years 1 months ago
A Low-Cost Solution for Frequent Symmetric Key Exchange in Ad-hoc Networks
: Next to authentication, secure key exchange is considered the most critical and complex issue regarding ad-hoc network security. We present a low-cost, (i.e. low hardware-complex...
Markus Volkmer, Sebastian Wallner