Devices such as CAC cards and smart cards are not being recognized by Chrome's WebUSB feature

I recently developed a script to identify all USB devices connected to Chrome using chrome.usb.getDevices. Surprisingly, the script successfully detected a second-generation iPod touch, a mouse, keyboard, and two unidentified items from Intel. However, it failed to recognize any USB flash drives or Smart Cards. Despite installing Chrome's Smart Card Connector app, I am unable to get Chrome to acknowledge these Smart Cards. I am eager to find a solution that allows for CAC/smartcard authentication through the browser without the need for multiple additional dependencies.

Edit: Additionally, I attempted to install WinUSB drivers as an alternative to HID drivers, but unfortunately encountered the same unsatisfactory results.

javascriptgoogle-chromegoogle-chrome-app

Answer №1

The Chrome USB Devices guide highlights that not every USB device is compatible and accessible:

Important Notes

It is important to note that certain devices may not be compatible with the USB API due to restrictions imposed by the Operating System's kernel or native drivers. For instance, devices with HID profiles on OSX systems and USB pen drives may face accessibility issues.

In many Linux environments, USB devices are initially set with read-only permissions. To enable access through this API, it is necessary for your user to also have write permissions granted. One workaround is to establish a udev rule. Create a file /etc/udev/rules.d/50-yourdevicename.rules and include the following information:

SUBSYSTEM=="usb", ATTR{idVendor}=="[yourdevicevendor]", MODE="0664", GROUP="plugdev"

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