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Updated README

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Hrvoje Cavrak 2024-02-15 10:31:00 +01:00
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README.md
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@ -71,23 +71,6 @@ Option 2 - Switch a board to BOOTSEL mode by using a special key combination (li
This will make the corresponding Pico board enter the bootloader upgrade mode and act as USB flash drive. Now you can drag-and-drop the .uf2 file to it (you might need to plug in your mouse directly).
## Security and Safety
Some features are missing on purpose, despite the fact it would make the device easier to use or simpler to configure. Here is a quick breakdown of these decisions:
- There is no copy-paste or *any* information sharing between systems. This prevents information leakage.
- No webhid device management or any inbound connectivity from the output computers, with the only exception of standard keyboard LED on/off messages, hard limited to 1 byte of data.
- No FW upgrade triggering from the outputs. Only explicit and deliberate user action through a special keyboard shortcut may do that.
- No plugged-in keyboard/mouse custom endpoints are exposed or information forwarded towards these devices. Their potential vulnerabilities are effectively firewalled from the computer.
- No input history is allowed to be retained.
- Outputs are physically separated and galvanically isolated with a minimal isolation voltage of 2kV.
- All packets exchanged between devices are of fixed length, no code is transferred and no raw config exchange of any kind can take place.
- There is no bluetooth or wifi, networking, Internet access, usb drives etc.
- No connected computer is considered trusted under any circumstances.
- Entirety of the code is open source, without any binary blobs and thoroughly commented to explain its purpose. I encourage you to never trust anyone and always make sure you know what you are running by doing a manual audit.
This still doesn't guarantee anything, but I believe it makes a reasonable set of ground rules to keep you safe and protected.
## Misc features
### Mouse slowdown
@ -214,6 +197,23 @@ When you connect a new USB peripheral, the board will flash the led twice, and i
Do this test by first plugging the keyboard on one side and then on the other. If everything is OK, leds will flash quickly back and forth in both cases.
## Security and Safety
Some features are missing on purpose, despite the fact it would make the device easier to use or simpler to configure. Here is a quick breakdown of these decisions:
- There is no copy-paste or *any* information sharing between systems. This prevents information leakage.
- No webhid device management or any inbound connectivity from the output computers, with the only exception of standard keyboard LED on/off messages, hard limited to 1 byte of data.
- No FW upgrade triggering from the outputs. Only explicit and deliberate user action through a special keyboard shortcut may do that.
- No plugged-in keyboard/mouse custom endpoints are exposed or information forwarded towards these devices. Their potential vulnerabilities are effectively firewalled from the computer.
- No input history is allowed to be retained.
- Outputs are physically separated and galvanically isolated with a minimal isolation voltage of 2kV.
- All packets exchanged between devices are of fixed length, no code is transferred and no raw config exchange of any kind can take place.
- There is no bluetooth or wifi, networking, Internet access, usb drives etc.
- No connected computer is considered trusted under any circumstances.
- Entirety of the code is open source, without any binary blobs and thoroughly commented to explain its purpose. I encourage you to never trust anyone and always make sure you know what you are running by doing a manual audit.
This still doesn't guarantee anything, but I believe it makes a reasonable set of ground rules to keep you safe and protected.
## FAQ
1. I just have two Picos, can I do without a PCB and isolator?