A Method For Authenticating A Transaction, And Corresponding Servers, Systems, Devices, Computer-Readable Storage Mediums And Computer Programs

摘要

Various embodiments provide a method for authenticating a transaction, the method comprising: generating a first authentication code based on transaction information and a first cryptographic key, the transaction information relating to the transaction; providing a data carrier having data comprising the first authentication code and the transaction information; presenting the data carrier to a first server to cause the first server to extract the data from the data carrier; generating a second authentication code based on a second cryptographic key and the transaction information from the extracted data; and authenticating the transaction based on a comparison between the first authentication code from the extracted data and the second authentication code.