Method of secure file transfer

Details Method of secure file transfer Method of secure file transfer

2011-04-19

2011-04-19

Orgad, Edan (Department: 2439)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Security kernel or utility

C713S164000, C713S150000, C709S201000, C726S026000

Reexamination Certificate

active

07930538

ABSTRACT:
A method of securely transferring files from an un-trusted to a trusted network is disclosed. A file that is an archive file of many component files is separated into constituent files. Each file is stored on a first computer connected to an un-trusted network, and a series of initial checks, such as virus, file size, and file extension are performed. If the files pass, the file is transferred to a second server using a one-way file transfer mechanism. A series of secondary checks, similar to the initial checks is performed on each file transferred. For text files or images, a simplified security rule is applied. An open format transform is performed on proprietary format type files, and embedded file components are separated out. A user-definable security rule set is performed on each open format transform component. If all security tests pass, the file is reassembled and transferred to the trusted network.

REFERENCES:
patent: 5940591 (1999-08-01), Boyle et al.
patent: 6584508 (2003-06-01), Epstein et al.
patent: 6826694 (2004-11-01), Dutta et al.
patent: 6978378 (2005-12-01), Koretz

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