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» Cheating in Visual Cryptography
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JCP
2008
161views more  JCP 2008»
13 years 7 months ago
Visual Cryptography for General Access Structure Using Pixel-block Aware Encoding
Multi-pixel encoding is an emerging method in visual cryptography for that it can encode more than one pixel for each encoding run. Nevertheless, in fact its encoding efficiency is...
Haibo Zhang, Xiaofei Wang, Wanhua Cao, Youpeng Hua...
DCC
2005
IEEE
14 years 7 months ago
XOR-based Visual Cryptography Schemes
A recent publication introduced a Visual Crypto (VC) system, based on the polarisation of light. This VC system has good resolution, contrast and colour properties. Mathematically,...
Pim Tuyls, Henk D. L. Hollmann, Jack H. van Lint, ...
ACNS
2005
Springer
97views Cryptology» more  ACNS 2005»
14 years 1 months ago
Quantifying Security in Hybrid Cellular Networks
Abstract. We propose a micro-payment scheme for symmetric multihop cellular networks that encourages intermediaries to transmit packets and recipients to provide auditing informati...
Markus Jakobsson, Liu Yang
ESOP
2008
Springer
13 years 9 months ago
A Formal Implementation of Value Commitment
In an optimistic approach to security, one can often simplify protocol design by relying on audit logs, which can be analyzed a posteriori. Such auditing is widely used in practice...
Cédric Fournet, Nataliya Guts, Francesco Za...
PKC
2009
Springer
131views Cryptology» more  PKC 2009»
14 years 8 months ago
Towards Black-Box Accountable Authority IBE with Short Ciphertexts and Private Keys
At Crypto'07, Goyal introduced the concept of Accountable Authority Identity-Based Encryption as a convenient tool to reduce the amount of trust in authorities in Identity-Bas...
Benoît Libert, Damien Vergnaud