| 摘要 |
The present invention relates to an electronic transaction method in a mobile terminal using a secure external memory. The electronic transaction method according to an aspect of the present invention includes the steps of: executing an application for electronic transaction; writing, by the application, a message for the transaction; performing security processing using an identification value, wherein the identification value is for transaction stored in an external memory module, in the written message by cooperation between the application and the external memory module of a mobile terminal; transmitting the security-processed message to an external server to manage the transaction; and identifying, by the server, authenticity of the message by performing security processing corresponding to the security processing using an identification value corresponding to the identification value for the received message. |
