Computer network security system employing portable storage device
US7228438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2001 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | Jan 4, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/166
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The trusted computer network is protected behind a gateway that includes a bastion host and screening router which blocks all URLs associated with the trusted network. The bastion host includes a remote client authentication mechanism and web proxy component that verifies and translates incoming URL requests from authenticated remote clients. Authentication is performed using one-time passwords that are stored on a portable storage device. The user configures the portable storage device by operating configuration software from the protected side of the gateway. The portable storage device also stores plug-in software to enable the client computer to properly retrieve the one-time password and exchange authentication messages with the bastion host. Further security is obtained by basing the one-time password on an encrypted version of the user's PIN. A symmetric key used to encrypt the PIN is stored in a protected area within the portable storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.