135 search results - page 22 / 27 » Machine Authentication of Security Documents |
WWW
2009
ACM
14 years 8 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
13 years 8 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...
ISI
2006
Springer
13 years 7 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...
ASPLOS
2009
ACM
14 years 8 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...
OOPSLA
2009
Springer
14 years 1 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 ...