Method and apparatus for effecting secure document format...

G - Physics – 06 – F

Patent

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Details

G06F 3/14 (2006.01) G06F 1/00 (2006.01) G06F 13/00 (2006.01) G06F 17/30 (2006.01) H04L 29/06 (2006.01) H04M 1/64 (2006.01)

Patent

CA 2338332

A method and apparatus is provided for effecting secure document delivery in any of various document formats. A document is encrypted with the public key of a server (10) associated with the recipient of the document, instead of with the public key of the intended recipient. The receiving server is located within a firewall. The encrypted document is forwarded to the server within the firewall. The server decrypts the document using its corresponding private key, converts the document to a new data representation, and then either forwards the document to the recipient inside the firewall, or re-encrypts the document with the public key of an intended recipient outside of the firewall or with the public key of another server that is associated with the intended recipient of the document.

Cette invention a trait à une technique ainsi qu'au dispositif correspondant permettant d'effectuer une remise sécurisée de document sous un format donné, quel qu'il soit. Un document est chiffré au moyen de la clef publique d'un serveur (10) associé au destinataire du document au lieu d'être chiffré au moyen de la clef publique du destinataire envisagé. Le serveur destinataire est placé dans un pare-feu. Le document chiffré est envoyé au serveur se trouvant dans le pare-feu. Le serveur déchiffre le document au moyen de sa clef privée correspondante, convertit le document lui donnant la forme d'une nouvelle représentation des données et, soit, il retransmet le document au destinataire dans le pare-feu, soit, il chiffre à nouveau le document au moyen de la clef publique d'un destinataire envisagé à l'extérieur du pare-feu ou bien au moyen de la clef publique d'un autre serveur associé au destinataire envisagé du document.

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