The invention relates to the technical field of data
encryption, in particular to a
USB multi-port equipment access
encryption authentication method and
system. Comprising a power supply module 100, a master control MCU unit 200, an
analog signal switching unit 300, a
USB expansion unit 400, a plugging detection unit 500 and a
host interface unit 600, and the master control MCU unit 200 is connected with the
analog signal switching unit 300, the
USB expansion unit 400, the plugging detection unit 500 and the
host interface unit 600 and used for achieving
signal control and
state management; the method does not depend on
operating system permission or user behaviors,
software installation is not needed, identification,
authentication and control operations are completed completely through hardware, and non-bypassing performance is achieved. The problems that a traditional white
list strategy is easy to bypass, needs to depend on
authorization of an
operating system and lacks physical isolation are effectively solved. The
system supports
upgrade authentication algorithms such as RSA, ECC and the like, supports a log recording function and a
remote communication management module, can realize strategy adjustment through a
firmware upgrade mechanism, and meets
access management and control requirements of different scenes.