233 search results - page 13 / 47 » CAPTCHA: Using Hard AI Problems for Security |
JOC
2000
14 years 9 months ago
2000
Abstract. Since the appearance of public-key cryptography in the seminal DiffieHellman paper, many new schemes have been proposed and many have been broken. Thus, the simple fact t...
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ISCA
2011
IEEE
14 years 1 months ago
2011
IEEE
High assurance systems used in avionics, medical implants, and cryptographic devices often rely on a small trusted base of hardware and software to manage the rest of the system. ...
ASIACRYPT
2010
Springer
14 years 7 months ago
2010
Springer
Blind signatures (BS), introduced by Chaum, have become a cornerstone in privacy-oriented cryptography. Using hard lattice problems, such as the shortest vector problem, as the bas...
AI
2010
Springer
14 years 9 months ago
2010
Springer
We consider the problem of finding an unknown graph by using two types of queries with an additive property. Given a graph, an additive query asks the number of edges in a set of ...
DRM
2005
Springer
15 years 3 months ago
2005
Springer
Watermarking technologies have been envisioned as a potential means for establishing ownership on digital media objects. However, achievable robustness and false-positive rates of...