System and method for end-to-end electronic mail encryption

H - Electricity – 04 – L

Patent

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Details

H04L 9/28 (2006.01) H04L 9/14 (2006.01) H04L 12/54 (2006.01)

Patent

CA 2633784

The present disclosure provides a system and method for end-to-end electronic mail encryption. In one embodiment, the sender contacts a payload-encryption-packet creation server which receives the message the sender would like to encrypt, generates an encrypted message and a payload-encryption-packet, and returns both to the sender. The sender then uses his regular email infrastructure to transmit to the recipient the encrypted message and the payload-encryption-packet as a single email. Upon receiving the sender's email, the recipient contacts a payload-encryption-packet processing server and sends it the payload-encryption-packet and authorization information. Depending on the validity of the authorization information, said server processes the payload-encryption-packet and provides the recipient with information usable for extracting the original message from the encrypted message.

L'invention concerne un système et un procédé pour le chiffrement de courrier électronique de bout en bout. Dans un mode de réalisation de l'invention, un expéditeur contacte un serveur de création de paquet à charge utile chiffrée qui reçoit le message que l'expéditeur souhaite chiffrer, génère un message chiffré et un paquet à charge utile chiffrée, et renvoie le tout à l'expéditeur. L'expéditeur utilise ensuite son infrastructure de courrier électronique normale pour transmettre à un destinataire le message chiffré et le paquet à charge utile chiffrée sous forme de courrier électronique unique. Après réception du courrier électronique de l'expéditeur, le destinataire contacte un serveur de traitement de paquet à charge utile chiffrée et envoie à ce dernier le paquet à charge utile chiffrée et des informations d'autorisation. En fonction de la validité des informations d'autorisation, ledit serveur traite le paquet à charge utile chiffrée et fournit au destinataire des informations servant à extraire le message original du message chiffré.

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