| 摘要 |
<p>The present invention provides a data transmission method and system. The method comprises: a kit deice receiving transaction information sent by a terminal, and sending the transaction information to an intelligent key device; the intelligent key device extracting important information of the transaction information, displaying the important information and waiting confirmation of a user; the intelligent key device receiving a confirmation instruction and sending signature information to the kit device; and the kit device sending the signature information to the terminal; before the step in which the intelligent key device receives the confirmation instruction, the intelligent key device entering a password input mode preset on the kit device, receiving a password input by means of the kit device and verifying correctness of the input password. In this manner, a password can be input by using a password input mode preset on a kit device, and different kit devices are used according to security levels of password input modes preset on the different kit devices, thereby improving the security of inputting a password.</p> |
