Methods for establishing legitimacy of communications

Details Methods for establishing legitimacy of communications Methods for establishing legitimacy of communications

H - Electricity

04

L

H04L 29/02 (2006.01) G06F 3/14 (2006.01) H04L 12/54 (2006.01)

Patent

CA 2595637

A sender-side process directed to processing an electronic message destined for a recipient, comprising producing a solution to a computational problem involving at least a portion of the message. A degree of effort associated with solving the problem may be assessed. The message is further processed according to the degree of effort by determining whether the degree of effort was within a range set by the sender or the recipient and if not, the computational problem is adjusted and solved again. The message is then transmitted to a recipient, who is informed of both the problem and solution. The recipient executes a recipient~side process, comprising: assessing the degree of effort associated with generation of the message based on the problem and solution; and further processing the message in accordance with the degree of effort. The degree of effort is indicative of the legitimacy of the message; e.g., is it "SPAM".

L'invention concerne un procédé d'expéditeur pour le traitement d'un message électronique destiné à un destinataire, consistant à trouver une solution à un problème informatique associé à au moins une partie du message. Un degré d'effort associé à la résolution du problème peut être évalué. Le message est également traité en fonction du degré d'effort en déterminant si le degré d'effort se trouve dans une tranche établie par l'expéditeur ou le destinataire qui est informé du problème et de la solution. Le destinataire exécute un procédé de destinataire consistant à évaluer le degré d'effort associé à la génération du message en fonction du problème et de la solution, puis à traiter le message en fonction du degré d'effort. Le degré d'effort indique la légitimité du message, permettant de déterminer, par exemple, s'il s'agit d'un "SPAM".

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