Crate iso7064 

iso7064 — ISO 7064 MOD 97-10 check characters

Compute and validate ISO 7064 MOD 97-10 check characters — the algorithm behind LEI codes, IBAN check digits, and more. A faithful Rust port of the iso-7064 npm package, plus the standard validation and check-digit-generation helpers.

use iso7064::{compute, generate_check_digits, is_valid};

// The MOD 97 of a string (the reference's `compute`):
assert_eq!(compute("969500KSV493XWY0PS").unwrap(), 54);

// Generate the two check digits for a base, and validate the whole code:
assert_eq!(generate_check_digits("969500KSV493XWY0PS").unwrap(), "33");
assert!(is_valid("969500KSV493XWY0PS33"));

Zero dependencies and #![no_std].

Enums

Error

An error from a checked operation.

Functions

compute

Compute the MOD 97 of value, after checking it matches [0-9A-Z]+.

compute_without_check

Compute the MOD 97 of value without validating its format.

generate_check_digits

Generate the two MOD 97-10 check digits for base (the code without its check digits).

is_valid

Whether value is a valid ISO 7064 MOD 97-10 code (its MOD 97 equals 1).