738 search results - page 126 / 148 » Privacy Protection for Speech Information |
CCS
2006
ACM
13 years 11 months ago
2006
ACM
A high-level security policy states an overall requirement for a sensitive task. One example of a high-level security policy is a separation of duty policy, which requires a sensi...
CCS
2006
ACM
13 years 11 months ago
2006
ACM
The usage control (UCON) model was introduced as a unified approach to capture a number of extensions for traditional access control models. While the policy specification flexibi...
CCS
2006
ACM
13 years 11 months ago
2006
ACM
We introduce the notion of resiliency policies in the context of access control systems. Such policies require an access control system to be resilient to the absence of users. An...
ACSAC
2010
IEEE
13 years 5 months ago
2010
IEEE
Many financial institutions have deployed CAPTCHAs to protect their services (e.g., e-banking) from automated attacks. In addition to CAPTCHAs for login, CAPTCHAs are also used to...
VLDB
2006
ACM
14 years 8 months ago
2006
ACM
Abstract We explore the problem of portable and flexible privacy preserving access rights that permit access to a large collection of digital goods. Privacy-preserving access contr...