iso6346

README

An implementation of iso6346 check-digit algorithm

Algorithm will detect wrong container numbers.

It is not intended to be a cryptographically secure hash function. It is mostly used for preflight container numbers.

Compatible with the ozzo-validation package.

Usage

import "github.com/kolkov/iso6346"

err := iso6346.Validate("CMAU5110875")

signed := iso6346.Generate("CMAU511087")

test on your own by running make benchmark

Resources

• Wikipedia - iso6346 algorithm

Documentation

Index

• Variables
• func CalcCheckDigit(code string) (int, error)
• func Generate(source string) (string, error)
• func Validate(value interface{}) error

Variables

var ErrValueNotIso6346 = errors.New("iso6346: must be valid number by iso6346 algorithm")

var ErrValueNotLen10 = errors.New("iso6346: must be 10 char")

var ErrValueNotLen11 = errors.New("iso6346: must be 11 char length")

Functions

func CalcCheckDigit

func CalcCheckDigit(code string) (int, error)

CalcCheckDigit calculates check digit for iso6346 algorithm.

func Generate

func Generate(source string) (string, error)

Generate return the number with check digit

func Validate

func Validate(value interface{}) error

Validate check number is valid or not based on iso6346 algorithm