| 摘要 |
Disclosed are a certification mobile terminal, and an electronic transaction system and method using the same. A certificate is downloaded to a mobile terminal from a certification authority. In a wired electronic transaction, a user's transaction history is provided to the mobile terminal from a service providing server or a user's transaction terminal, and the mobile terminal digitally signs the transaction history by using a stored digital certificate and provides the digitally signed transaction history to the service providing server or the transaction terminal so that the service providing server may finally receive the digitally signed transaction history. The service providing server settles the transaction with the user according to the digitally signed transaction history, and provides a service to the user. Also, in the offline transaction, the certificate stored in the mobile terminal is provided to a system to thereby execute stable transactions based on the certificate. |
| 主权项 |
1. An electronic transaction system, connected to a transaction terminal and a certification mobile terminal through a network and performing transactions according to a user request, comprising:
a transaction terminal configured to perform a transaction according to a request from a user; a service providing server configured to:
receive the request from the transaction terminal over a first communication network;inquire, the transaction terminal, about a certification method;receive a selected certification method, user information for the selected certification method, transaction history, and a mobile phone number from the transaction terminal, in response to the inquiry about a certification method; transmit a message, to the certification mobile terminal using the mobile phone number, receive a response to the message from the mobile terminal and in response to the received message, match the mobile phone number to the transaction history and provide the transaction history to the mobile terminal; receive a digitally signed version of the transmitted transaction history and digitally signed user information from the mobile terminal, verify the received digitally signed transaction history using a public key of the certification mobile terminal, and verify the digitally signed user information using the public key and the received user information for the selected certification method from the transaction terminal; and provide a service corresponding to the transaction to the transaction terminal after the digitally signed version of the transmitted transaction history and digitally signed user information is verified. |
