With this application you can see the model, firmware version, and serial number of your yubikey. Where serial_0, serial_1, serial_2 and serial_3 are the four bytes containing information about the yubikey’s serial number Using reader with a card
Naked | Aarhus
Yubico yubikey otp+fido+ccid 0 sending
00 a4 04 00 09 a0 00 00 03 08 00 00 10 00 received (sw1= 0x90, sw2= 0x00)
61 11 4f 06 00 00 10 00 01 00 79 07 4f 05 a0 00 00 03 08 sending 00 f8 00 00 received (sw1= 0x90, sw2= 0x00) 00 ae 17 cb in this case, the serial number is 0x00ae17cb = decimal 11409355 The serial number is printed on the back of every yubikey in the yubikey 5 series, yubikey 5 fips series, yubikey 5 cspn series, yubikey 5 enhanced pin series, security key series, and yubikey bio series.
You will see the device type, firmware version and serial number of the yubikey currently plugged in, assuming the application is displaying the home screen If not, click home to locate the firmware version Open command prompt (windows) or terminal (macos/linux) and run the command ykman info. Do i have to keep the serial number of the yubikey hidden somehow or does it not matter at all
(mostly talking about naming the keys on services by using the last 3 digits of their serial number to not mix them up) it is not sensitive
You may wanna come up with a better way of identifying your keys though A sticker, nail polish on the key, etc. The serial number of a yubikey is a unique identifier essential for inventory management, auditing, or integration with specific authentication systems Open the yubikey personalization tool
In the serial number visibility section, enable usb descriptor Please note that the yubikey must be removed and reinserted after this option is enabled in order for the operating system to recognize the updated device descriptor. Firmware version and serial number can be seen in the yubico authenticator app and in the output of the ykman command line tool The firmware version is also visible in the macos system report when you select the device.
