Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2005-12-09
2010-11-16
Lanier, Benjamin E (Department: 2432)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C726S022000, C709S203000, C709S219000, C709S229000
Reexamination Certificate
active
07836303
ABSTRACT:
A Web browsing system using a browser operating system (BOS), which provides a trusted software layer on which Web browsers execute. The BOS runs the client-side component of each Web application (e.g., on-line banking, and Web mail) in its own virtual machine, which provides strong isolation between Web services and the user's local resources. Web publishers can thus limit the scope of their Web applications by specifying the URLs and other resources that their browsers are allowed to access, which limits the harm that can be caused by a compromised browser. Web applications are treated as first-class objects that users explicitly install and manage, giving them explicit knowledge about and control over downloaded content and code. An initial embodiment implemented using Linux and the Xen virtual machine monitor has been shown to prevent or contain about 87% of the vulnerabilities that have been identified in a conventional web browser environment.
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Cox Richard S.
Gribble Steven
Hansen Jacob Gorm
Levy Henry M.
Anderson Ronald M.
Armouche Hadi
Lanier Benjamin E
University of Washington
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