opensc-tool

diagnostic tool for smart cards

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

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.

-n, --name

Print the name of the inserted card (driver).

--serial

Print the card serial number (ICCSN) in hex.

-D, --list-drivers

List all installed card drivers.

-c driver, --card-driver driver

Use specified card driver instead of auto-detection.

-w, --wait

Wait for a card to be inserted.

-v, --verbose

Verbose output (specify multiple times for debug output).

EXAMPLE

$ # Check for card
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.