233 search results - page 34 / 47 » CAPTCHA: Using Hard AI Problems for Security |
216
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COCOON
2011
Springer
13 years 9 months ago
2011
Springer
Motivated by a security problem in geographic information systems, we study the following graph theoretical problem: given a graph G, two special nodes s and t in G, and a number k...
CRYPTO
2007
Springer
15 years 3 months ago
2007
Springer
In this paper we identify the (P, Q)-DDH assumption, as an extreme, powerful generalization of the Decisional Diffie-Hellman (DDH) assumption: virtually all previously proposed gen...
113
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ECBS
2011
IEEE
13 years 9 months ago
2011
IEEE
—Developing dependable distributed real-time and embedded (DRE) systems incurs significant complexities in the tradeoffs resulting from the different conflicting attributes of ...
ASIACRYPT
2003
Springer
15 years 1 months ago
2003
Springer
This paper introduces the concept of certificateless public key cryptography (CL-PKC). In contrast to traditional public key cryptographic systems, CL-PKC does not require the use...
EUROSYS
2006
ACM
15 years 6 months ago
2006
ACM
Distributed systems are hard to build, profile, debug, and test. Monitoring a distributed system – to detect and analyze bugs, test for regressions, identify fault-tolerance pr...