135 search results - page 22 / 27 » Machine Authentication of Security Documents |
64
Voted
WWW
2009
ACM
15 years 10 months ago
2009
ACM
We present a new CAPTCHA which is based on identifying an image's upright orientation. This task requires analysis of the often complex contents of an image, a task which hum...
SEC
2008
14 years 11 months ago
2008
In an on-line transaction, a user sends her personal sensitive data (e.g., password) to a server for authentication. This process is known as Single Sign-On (SSO). Subject to phish...
75
Voted
ISI
2006
Springer
14 years 9 months ago
2006
Springer
As a result of growing misuse of online anonymity, researchers have begun to create visualization tools to facilitate greater user accountability in online communities. In this stu...
176
Voted
ASPLOS
2009
ACM
15 years 10 months ago
2009
ACM
For many mission-critical tasks, tight guarantees on the flow of information are desirable, for example, when handling important cryptographic keys or sensitive financial data. We...
70
Voted
OOPSLA
2009
Springer
15 years 4 months ago
2009
Springer
Objects model the world, and state is fundamental to a faithful modeling. Engineers use state machines to understand and reason about state transitions, but programming languages ...