Abstract: An E-wallet transfer payment method includes: connecting a first PKI smart card to a second PKI smart card wirelessly; the first PKI smart card receiving a transfer instruction input by a first user, wherein the transfer instruction comprises a transfer amount to be transferred to a payee account; the second PKI smart card sending the payee account information to the first PKI smart card; the first PKI smart card generating transaction information according to the transfer instruction, and displaying the transaction information; the first PKI smart card receiving a confirmation instruction input by the first user according to the displayed transaction information; the first PKI smart card deducting a corresponding amount in a payment account according to the transfer amount, generating a signature information and sending the signature information to the second PKI smart card; adding the corresponding amount to the payee account according to the signature information.

Abstract: The present invention discloses a method and a device for authorizing and using a virtual device, wherein the method comprises: after receiving a request for generating a virtual device, a mobile terminal configures authority information of a first virtual device, generates the first virtual device, and interacts with a servers to send the configured authority information of the first virtual device and related authentication information to the server for authenticating. After passing the authentication, the server generates a second virtual device with the above-mentioned authority information. When in use, the mobile terminal generates authentication information and sends a current use status of the first virtual device to the server for authenticating and is returned to with a authentication result. The present invention improves the security by adding the authentication with respect to the authority information during the authorization of generating the virtual device and use of the virtual device.