#pcsc #smartcard

pcsc

Bindings to the PC/SC API for smart card communication

15 releases (8 stable)

2.3.1 Dec 19, 2019
2.3.0 Nov 25, 2019
2.2.0 Sep 3, 2019
2.1.1 Feb 11, 2019
0.1.0 Feb 6, 2017

#6 in Hardware support

Download history 170/week @ 2019-12-17 59/week @ 2019-12-24 79/week @ 2019-12-31 191/week @ 2020-01-07 124/week @ 2020-01-14 157/week @ 2020-01-21 217/week @ 2020-01-28 207/week @ 2020-02-04 111/week @ 2020-02-11 131/week @ 2020-02-18 136/week @ 2020-02-25 121/week @ 2020-03-03 67/week @ 2020-03-10 126/week @ 2020-03-17 59/week @ 2020-03-24 35/week @ 2020-03-31

965 downloads per month
Used in 4 crates (3 directly)

MIT license

77KB
1.5K SLoC

pcsc-rust

crates.io docs.rs license

Linux, macOS: Travis CI Windows: AppVeyor

Rust bindings to the PC/SC API for smart card communication.

  • Nice, safe API.
  • Tested on Linux, Windows, macOS.
  • Mostly zero overhead.

See the Documentation for more details.

See the pcsc/examples directory for some common tasks.

Contents

The pcsc-sys crate contains direct, low-level bindings to the C API.

The pcsc crate contains high-level Rust wrappers.

Usage

In your Cargo.toml:

[dependencies]
pcsc = "2"

Example

Connect to the card in the first available reader, send the card an APDU command, print the APDU response.

use pcsc::*;

fn main() {
    // Establish a PC/SC context.
    let ctx = match Context::establish(Scope::User) {
        Ok(ctx) => ctx,
        Err(err) => {
            eprintln!("Failed to establish context: {}", err);
            std::process::exit(1);
        }
    };

    // List available readers.
    let mut readers_buf = [0; 2048];
    let mut readers = match ctx.list_readers(&mut readers_buf) {
        Ok(readers) => readers,
        Err(err) => {
            eprintln!("Failed to list readers: {}", err);
            std::process::exit(1);
        }
    };

    // Use the first reader.
    let reader = match readers.next() {
        Some(reader) => reader,
        None => {
            println!("No readers are connected.");
            return;
        }
    };
    println!("Using reader: {:?}", reader);

    // Connect to the card.
    let card = match ctx.connect(reader, ShareMode::Shared, Protocols::ANY) {
        Ok(card) => card,
        Err(Error::NoSmartcard) => {
            println!("A smartcard is not present in the reader.");
            return;
        }
        Err(err) => {
            eprintln!("Failed to connect to card: {}", err);
            std::process::exit(1);
        }
    };

    // Send an APDU command.
    let apdu = b"\x00\xa4\x04\x00\x0A\xA0\x00\x00\x00\x62\x03\x01\x0C\x06\x01";
    println!("Sending APDU: {:?}", apdu);
    let mut rapdu_buf = [0; MAX_BUFFER_SIZE];
    let rapdu = match card.transmit(apdu, &mut rapdu_buf) {
        Ok(rapdu) => rapdu,
        Err(err) => {
            eprintln!("Failed to transmit APDU command to card: {}", err);
            std::process::exit(1);
        }
    };
    println!("APDU response: {:?}", rapdu);
}

Example output:

$ ./target/debug/examples/readme
Using reader: "SCM Microsystems Inc. SCR 355 [CCID Interface] 00 00"
Sending APDU: [0, 164, 4, 0, 10, 160, 0, 0, 0, 98, 3, 1, 12, 6, 1]
APDU response: [106, 130]

License

The MIT license.

Dependencies

~31KB