| 摘要 |
A method (400, 500) of carrying out electronic commerce transactions on a telematics network, comprising the steps of generating (505) an incomplete payment order, the incomplete payment order being free of sensitive information relating to an instrument of payment of the user, storing (450) the sensitive information on a service centre's server computer system, generating (506-518) a digital signature of the incomplete payment order by the user's computer system and sending (524) the digital signature to the service centre's computer system; under the control of the service centre's computer system, checking (527) the digital signature, completing (539-542) the payment order by adding the sensitive information, and carrying out (545-557) a transaction corresponding to the completed payment order.
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