| 摘要 |
Disclosed are a password key, a security authentication system and a security authentication method. The password key comprises a security module, a first control unit, a first oscillation sending unit and a first oscillation receiving unit. The input end of the first oscillation receiving unit is used for receiving an oscillation signal transmitted in a medium. The output end of the first oscillation sending unit is used for sending password information into the medium. The input end of the first control unit is connected to the output end of the first oscillation receiving unit, the control end of the first control unit is connected to the security module, and the output end of the first control unit is connected to the input end of the first oscillation sending unit.The present invention performs wireless transmission of password information using the oscillation in a medium where a password key is located, the problem in matching the password key with an interface of a mobile terminal does not exist, and universality is relatively high, which allows a user to perform online payment more conveniently; in addition, medium oscillation is adopted to transmit the password information between the password key and the mobile terminal, a public network does not need to be involved, and security is high. |
