Root key compromise recovery

Details Root key compromise recovery Root key compromise recovery

H - Electricity

04

L

H04L 9/08 (2006.01) H04L 9/30 (2006.01)

Patent

CA 2230630

A method of recovering from a compromise of a root key which is the private key of a first public key-private key pair, the method including the steps of electronically sending out an emergency message (10) indicating that the root key has been compromised and also containing a replacement key (16) and a digital signature (22) which was generated by using the root key; and publishing in an out-of-band channel a value V, wherein V is derived from the emergency message.

Procédé permettant de réparer la compromission d'un code racine qui est le code privé d'une première paire constituée par un code privé et par un code public, procédé qui consiste à envoyer un message électronique d'urgence (10) indiquant que le code racine a été l'objet d'une compromission et contenant également un code de remplacement (16) et une signature numérique (22) qui a été générée au moyen du code racine, puis à publier dans un canal hors de bande une valeur V, dans laquelle V est calculée à partir du message d'urgence.

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