Digital signature protocol

H - Electricity – 04 – L

Patent

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H04L 9/32 (2006.01)

Patent

CA 2591775

A digital signature protocol generates a signature component using a hash of an encrypted message. The component and encrypted message form a signature pair that is forwarded to a recipient. The encryption message is used to retrieve the encryption key at the recipient and authenticate information in the message. The signature pair may be applied to a data carrier as a bar code for use in mail delivery services. By utilizing a hash of the message, a reduced message length is achieved as individual signatures are not required for each component of the message.

Un protocole de signature numérique génère une composante de signature en faisant le hachage d'un message chiffré. La composante et le message chiffré forment une paire de signatures qui est transmise à un destinataire. Le message de chiffrement est utilisé pour récupérer la clé de cryptage à destination et pour authentifier les informations contenues dans le message. La paire de signatures peut être appliquée à un support de données comme un code à barres pour une utilisation dans les services de livraison du courrier. En utilisant le hachage du message, on obtient un message de longueur réduite, car les signatures individuelles ne sont pas requises pour chaque composante du message.

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