233 search results - page 33 / 47 » CAPTCHA: Using Hard AI Problems for Security |
106
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CCS
2007
ACM
15 years 1 months ago
2007
ACM
Given a history of packet transmissions and an excerpt of a possible packet payload, the payload attribution problem requires the identification of sources, destinations and the t...
RIVF
2007
14 years 11 months ago
2007
— This paper investigates the problem of secret key transmissions for an arbitrary Alice-Bob pair in Quantum Key Distribution (QKD)-based networks. We develop a realistic QKDbase...
110
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ASIACRYPT
2009
Springer
15 years 4 months ago
2009
Springer
Abstract. We describe a public-key encryption scheme based on lattices — specifically, based on the hardness of the learning with error (LWE) problem — that is secure against ...
102
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SASN
2004
ACM
15 years 3 months ago
2004
ACM
Key management is one of the fundamental building blocks of security services. In a network with resource constrained nodes like sensor networks, traditional key management techni...
IACR
2011
13 years 9 months ago
2011
We present a radically new approach to fully homomorphic encryption (FHE) that dramatically improves performance and bases security on weaker assumptions. A central conceptual con...