verhoeff

README

zero-alloc verhoeff checksum algorithm

Usage

import "github.com/jancajthaml-go/verhoeff"

ok := verhoeff.Validate("00123014764700968325")

digit, error := verhoeff.Digit("x")

signed := verhoeff.Generate("1")

Resources

• Wikipedia - Verhoeff algorithm

Documentation

Overview

Information about the algorithm is available on Wikipedia

https://en.wikipedia.org/wiki/Verhoeff_algorithm

Index

• func Digit(cc string) (int, error)
• func Generate(cc string) (string, error)
• func Validate(cc string) bool

Functions

func Digit

func Digit(cc string) (int, error)

Digit returns verhoeff digit for given numeric string

func Generate

func Generate(cc string) (string, error)

Generate signs string with verhoeff digit

func Validate

func Validate(cc string) bool

Validate returns true if numeric string is signed with valid luhn digit