opensc-tool
TLDR
List readers
$ opensc-tool --list-readers
Show card info$ opensc-tool --info
Show ATR (Answer To Reset)$ opensc-tool --atr
List card files$ opensc-tool --list-files
Send APDU command$ opensc-tool --send-apdu [00:A4:04:00:00]
Verbose output$ opensc-tool -v --info
SYNOPSIS
opensc-tool [options]
DESCRIPTION
opensc-tool is a diagnostic tool for smart cards. It can query card readers, retrieve card information, and send raw APDU commands for testing and debugging.
Part of the OpenSC project for smart card support on Unix systems.
PARAMETERS
-l, --list-readers
List available readers.-i, --info
Card information.-a, --atr
Show ATR.-s, --send-apdu apdu
Send APDU.--list-files
List files on card.-r reader
Use specific reader.-v, --verbose
Verbose output.
EXAMPLE
$ # Check for card
opensc-tool --list-readers
# Reader 0: Alcor Micro AU9540
# Get card info
opensc-tool --info
# Card type: PIV-II
opensc-tool --list-readers
# Reader 0: Alcor Micro AU9540
# Get card info
opensc-tool --info
# Card type: PIV-II
CAVEATS
Requires PC/SC daemon (pcscd). Card must be inserted. Some commands require PIN.
HISTORY
OpenSC was started to provide open-source smart card support on Unix systems, supporting PKCS#11 and cryptographic operations.
SEE ALSO
pkcs15-tool(1), pkcs11-tool(1), pcscd(8)
