A dual-host event sharing transfer device and method
A switching device, dual-host technology, applied in the protection of internal/peripheral computer components, instruments, electrical digital data processing, etc., can solve problems such as slow response speed
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Embodiment 1
[0044] Such as figure 1 As shown, the first aspect of the present invention proposes a dual-host event sharing transfer device, the shared transfer device includes: a first host, an adapter and a second host, and the adapter includes a first chip and a second chip Two chips; the adapter communicates with the first host and the second host respectively through a set USB interface, and communicates with the first chip and the second chip through an SPI interface;
[0045] The first host is configured to send its own keyboard and mouse events to the first chip of the adapter through the USB interface;
[0046] The adapter is used to receive the keyboard and mouse event through the first chip and send it to the second chip through the SPI interface; it is also used to receive the keyboard and mouse event through the second chip, and sending to the second host through the USB interface;
[0047] The second host is configured to receive the keyboard and mouse event through a USB i...
Embodiment 2
[0083] In practical applications, the first chip and the second chip can be set as security chips to provide cryptographic services for the first host and the second host respectively, including services such as encryption and decryption, signature verification, and digital certificates.
[0084] When establishing a dedicated event sharing channel between the first host and the first chip, the first chip is also used to receive the PIN password sent by the first host and compare it with the PIN code of the first chip itself to Authenticating the identity of the first host; if the comparison results are consistent, the first chip generates a set of key pairs, and sends the public key of the key pair to the first host;
[0085] Before the first host sends its own keyboard and mouse events to the first chip of the adapter through the USB interface,
[0086] The first chip of the adapter is also used to generate a random number A, and use the private key of the key pair to encrypt...
Embodiment 3
[0098] Such as figure 2 As shown, the present invention also proposes a dual-host event shared transfer method, the shared transfer method comprising:
[0099] Step S1, the first host sends its own keyboard and mouse events to the first chip of the adapter through the USB interface;
[0100] Step S2, the adapter receives the keyboard and mouse event through the first chip, and sends it to the second chip through the SPI interface; the second chip receives the keyboard and mouse event, and sends it through the USB interface to the second host;
[0101] Step S3, the second host receives the keyboard and mouse events through the USB interface, so as to realize the sharing of keyboard and mouse events.
[0102] Specifically, the step S1 specifically includes:
[0103] The first chip makes the first chip a device conforming to the USB HID standard protocol by modifying the configuration descriptor, the HID descriptor and the report descriptor; meanwhile, the interrupt type endp...
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