1 unstable release
Uses old Rust 2015
0.0.1 | Dec 6, 2015 |
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#8 in #luhn
Used in covid_cert_uvci
11KB
178 lines
luhn-rs
This project allows generating and verifying Luhn check digits and using arbitrary alphabets.
Example
Add this to your Cargo.toml
:
[dependencies]
luhn-rs = "0.0.1"
Then, in your crate:
extern crate luhn;
use luhn::Luhn;
Generating a check digit:
// The alphabet given dictates what input characters are allowed.
let l = Luhn::new("abcdef").expect("invalid alphabet given");
let ch = l.generate("abcdef") {
Ok(ch) => ch,
Err(e) => panic!("unexpected generate error: {:?}", e),
};
println!("the luhn check digit is: {}", ch);
Verifying a check digit (this uses the last character in the string as the check digit):
let l = Luhn::new("abcdef").expect("invalid alphabet given");
println!("validating 'abcdefe': {}", l.validate("abcdefe").unwrap());
println!("validating 'abcdefa': {}", l.validate("abcdefe").unwrap());
License
MIT