4511 search results - page 180 / 903 » Observation Based System Security |
154
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MMMACNS
2001
Springer
15 years 11 months ago
2001
Springer
Abstract. We present a new model that provides clear and precise semantics for authorization. The semantics is independent from underling security mechanisms and is separate from i...
152
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INFORMATIKTAGE
2008
15 years 8 months ago
2008
: This thesis focuses on the practical aspects of general two-party Secure Function Evaluation (SFE). A new SFE protocol that allows free evaluation of XOR gates and is provably se...
205
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ASIACRYPT
2003
Springer
15 years 11 months ago
2003
Springer
Abstract. ESIGN is an efficient signature scheme that has been proposed in the early nineties (see [14]). Recently, an effort was made to lay ESIGN on firm foundations, using the...
225
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JOC
2010
15 years 5 months ago
2010
We present a new encryption scheme which is secure against adaptive chosenciphertext attack (or CCA2-secure) in the standard model (i.e. without the use of random oracle). Our sch...
137
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ESORICS
2009
Springer
16 years 7 months ago
2009
Springer
We present a traffic analysis of the ADU anonymity scheme presented at ESORICS 2008, and the related RADU scheme. We show that optimal attacks are able to de-anonymize messages mor...