| 摘要 |
This invention relates to an authentication device and method, in particular to devices and methods for generating dynamic passwords, and to cards carrying the device and to software implementing the method. An apparatus for generating intermediate cryptogram data corresponding to a dynamic password for a first cryptographic scheme, the intermediate cryptogram data being suitable for display using a device designed for a second, different cryptographic scheme, the apparatus comprising: a communications interface for communicating with a said device; and a processor coupled to a memory, the memory storing processor controlcode to controlthe processor, when running, to: generate a dynamic password according to the first cryptographic scheme; and generate intermediate cryptogram data corresponding to said dynamic password, the intermediate cryptogram data being suitable for outputting to the said deviceso that, when the said device processes said intermediate cryptogramdata according to the second cryptographic scheme, the said device generates data suitable for displaying said dynamic password. |
