773 search results - page 50 / 155 » On Cryptographic Assumptions and Challenges |
157
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TCC
2010
Springer
16 years 1 months ago
2010
Springer
A number of works have investigated using tamper-proof hardware tokens as tools to achieve a variety of cryptographic tasks. In particular, Goldreich and Ostrovsky considered the ...
139
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FSTTCS
2009
Springer
16 years 22 days ago
2009
Springer
ABSTRACT. We study functionally private approximations. An approximation function g is functionally private with respect to f if, for any input x, g(x) reveals no more information ...
164
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EUROCRYPT
2004
Springer
15 years 10 months ago
2004
Springer
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...
215
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CSFW
2012
IEEE
13 years 8 months ago
2012
IEEE
The onion routing network Tor is undoubtedly the most widely employed technology for anonymous web access. Although the underlying onion routing (OR) protocol appears satisfactory...
154
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CCS
2009
ACM
16 years 6 months ago
2009
ACM
There is a natural intuitive match between anonymity and information theory. In particular, the maximal anonymity loss in anonymity protocols can be matched to the information the...