| 摘要 |
The invention is directed to a secure data communication system and method for use in connection with a potentially untrusted host computer. The system includes a storage medium that is connectable with the potentially untrusted host computer. The system also includes a hardened, stand alone, browser stored on the storage medium. The system can also include client authentication data and/or add-on program data. The browser can use the client authentication data to facilitate secure communications. The system can include has a loader that performs an integrity check of the browser and/or data files and launches the browser only if the browser and associated data files pass the integrity check. The client authentication data can be stored on the storage medium. The storage medium can be read-only, read-write or a combination thereof.
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