@engr Not the USB Serial, but the Nitrokey Serial (or from the PIV or PGP SC):
Nitrokey Serial
/* AABBC and DDEEF is the "short ID you will also see with the Nitrokey App 2. */
$ nitropy list
Command line tool to interact with Nitrokey devices 0.4.43
:: 'Nitrokey FIDO2' keys
:: 'Nitrokey Start' keys:
:: 'Nitrokey 3' keys
/dev/hidraw8: Nitrokey 3 AABBC<and-much-more>
/dev/hidraw9: Nitrokey 3 DDEEF<and-much-more>
PGP SmartCard
$ gpg-card LIST --cards
0* D276000124010304000FDDEEFxxx0000
1 D276000124010304000FAABBCxxx0000
PIV and PKCS#11
$ opensc-tool --list-readers
# Detected readers (pcsc)
Nr. Card Features Name
0 Yes Nitrokey Nitrokey 3 [CCID/ICCD Interface] 00 00
1 Yes Nitrokey Nitrokey 3 [CCID/ICCD Interface] 01 00
$ opensc-tool --serial --reader 0
00 0F AA BB Cx xx ...$Z.
$ opensc-tool --serial --reader 1
00 0F DD EE Fx xx ...pU.
$ pkcs11-tool --list-slots
Available slots:
Slot 0 (0x0): Nitrokey Nitrokey 3 [CCID/ICCD Interface] 00 00
token label : OpenPGP card (User PIN)
token manufacturer : OpenPGP project
token model : PKCS#15 emulated
token flags : login required, token initialized, PIN initialized
hardware version : 3.4
firmware version : 3.4
serial num : 000fABBCxxx
pin min/max : 6/127
Slot 1 (0x1): Nitrokey Nitrokey 3 [CCID/ICCD Interface] 00 00
token label : OpenPGP card (User PIN (sig))
token manufacturer : OpenPGP project
token model : PKCS#15 emulated
token flags : login required, token initialized, PIN initialized
hardware version : 3.4
firmware version : 3.4
serial num : 000fAABBCxxx
pin min/max : 6/127
Slot 2 (0x4): Nitrokey Nitrokey 3 [CCID/ICCD Interface] 01 00
token label : OpenPGP card (User PIN)
token manufacturer : OpenPGP project
token model : PKCS#15 emulated
token flags : login required, token initialized, PIN initialized
hardware version : 3.4
firmware version : 3.4
serial num : 000fDDEEFxxx
pin min/max : 6/127
Slot 3 (0x5): Nitrokey Nitrokey 3 [CCID/ICCD Interface] 01 00
token label : OpenPGP card (User PIN (sig))
token manufacturer : OpenPGP project
token model : PKCS#15 emulated
token flags : login required, token initialized, PIN initialized
hardware version : 3.4
firmware version : 3.4
serial num : 000fDDEEFxxx
pin min/max : 6/127
Edit: Fixed the PGP SC and PKCS#11 Serial