| 摘要 |
A device obtains an encoded information item and decodes it, or transmits the coded information to the server to be decoded. The device transmits a first message to first server apparatus, including the decoded information and a first identifier identifying the device or a user of the device. A verification item may be included in a graphical encoded information item, such as a QR bar code. The server uses the identifier to establish the identity of the user of the device, and in response to establishing the identity of the user, performing an action based on the decoded information. The system may be used to validate ATM, self-service shopping or other check out transactions, or to allow access to a service or open secure doors to authorized people. The decoded information may be verification information, which is compared with reference data. The encoded information may be a sequence of numbers, letters or symbols typed into the interface or retrieved over a wired connection. The system may reduce the risk of a man in the middle attack with tiered strengths of authentication for mobile banking and payments. |
