Patent ID: 8281364

Claim:
A method for performing a secure logon input onto a network, comprising the steps of: establishing a secure channel between a client computation device and a network server and downloading a server public key certificate of said network server; switching an OS operating mode of said client computation device to an OS standby mode and causing said client computation device to enter BIOS operating mode; inputting user authentication information in said BIOS operating mode and then causing said client computation device to exit said BIOS operating mode and be switched back to said OS operating mode; and verifying said user authentication information by said network server if said user authentication information is used to log onto said network server, so as to implement secure logon from said client computation device to said network server, said step of inputting said user authentication information in BIOS operating mode and switching back to OS operating mode comprises steps of— inputting said user authentication information in BIOS operating mode; encrypting said user authentication information with said server public key certificate to generate an encrypted user data packet; writing said encrypted user data packet in one of the two positions of the internal memory and NVRAM; and triggering a computation device keybutton to recover from BIOS operating mode to OS operating mode.