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INFORMATICALT
2000
93views more  INFORMATICALT 2000»
15 years 4 months ago
A Secure Nonrepudiable Threshold Proxy Signature Scheme with Known Signers
In the (t, n) proxy signature scheme, the signature, originally signed by a signer, can be signed by t or more proxy signers out of a proxy group of n members. Recently, an efficie...
Min-Shiang Hwang, Iuon-Chang Lin, Eric Jui-Lin Lu
IJMI
2002
142views more  IJMI 2002»
15 years 4 months ago
Quality assured trusted third parties for deploying secure internet-based healthcare applications
In this paper we present a complete reference framework for the provision of quality assured Trusted Third Party (TTP) services within a medical environment. The main objective is...
Dimitrios Lekkas, Stefanos Gritzalis, Sokratis K. ...
195
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ASIACRYPT
2006
Springer
15 years 6 months ago
Forward-Secure and Searchable Broadcast Encryption with Short Ciphertexts and Private Keys
We introduce a primitive called Hierarchical Identity-Coupling Broadcast Encryption (HICBE) that can be used for constructing efficient collusion-resistant public-key broadcast enc...
Nuttapong Attrapadung, Jun Furukawa, Hideki Imai
IJACTAICIT
2010
176views more  IJACTAICIT 2010»
15 years 1 months ago
A Secured Web Services Based E-Commerce Model for SMME Using Digital Identity
This paper deals with redesigning the existing e-commerce architecture that has provided a platform for the large companies to sell their products so that it can provide a place o...
Ashwin B. K., Kumaran K., Madhu Vishwanatham V., M...
ACNS
2007
Springer
96views Cryptology» more  ACNS 2007»
15 years 8 months ago
Universal Accumulators with Efficient Nonmembership Proofs
Based on the notion of accumulators, we propose a new cryptographic scheme called universal accumulators. This scheme enables one to commit to a set of values using a short accumul...
Jiangtao Li, Ninghui Li, Rui Xue