System and method for protecting a computer and a network from hostile downloadables
US6092194A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 1997 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Nov 6, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2119
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system protects a computer from suspicious Downloadables. The system comprises a security policy, an interface for receiving a Downloadable, and a comparator, coupled to the interface, for applying the security policy to the Downloadable to determine if the security policy has been violated. The Downloadable may include a Java.TM. applet, an ActiveX.TM. control, a JavaScript.TM. script, or a Visual Basic script. The security policy may include a default security policy to be applied regardless of the client to whom the Downloadable is addressed, or a specific security policy to be applied based on the client or the group to which the client belongs. The system uses an ID generator to compute a Downloadable ID identifying the Downloadable, preferably, by fetching all components of the Downloadable and performing a hashing function on the Downloadable including the fetched components. Further, the security policy may indicate several tests to perform, including (1) a comparison with known hostile and non-hostile Downloadables; (2) a comparison with Downloadables to be blocked or allowed per administrative override; (3) a comparison of the Downloadable security profile data against …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.