419 search results - page 59 / 84 » From digital audiobook to secure digital multimedia-book |
CCS
2008
ACM
14 years 11 months ago
2008
ACM
In 1998, Blaze, Bleumer, and Strauss suggested a cryptographic primitive termed proxy re-signature in which a proxy transforms a signature computed under Alice's secret key in...
GECCO
2009
Springer
15 years 4 months ago
2009
Springer
The sophistication of computer malware is becoming a serious threat to the information technology infrastructure, which is the backbone of modern e-commerce systems. We, therefore...
MOBISYS
2007
ACM
15 years 9 months ago
2007
ACM
Presence-sharing is an emerging platform for mobile applications, but presence-privacy remains a challenge. Privacy controls must be flexible enough to allow sharing between both ...
SOSP
2003
ACM
15 years 6 months ago
2003
ACM
The challenge for user authentication in a global file system is allowing people to grant access to specific users and groups in remote administrative domains, without assuming ...
SACMAT
2009
ACM
15 years 4 months ago
2009
ACM
Traditional access control models, such as Role-Based Access Control (RBAC), do not take into account contextual information, such as location and time, for making access decision...