This is an implementation of the Luhn mod N algorithm in Swift.
Features :
- Add the check digit to a string
- Check the validity of a string
- Works in mod 2 to 36
CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:
$ gem install cocoapods
To integrate LuhnModN into your Xcode project using CocoaPods, add this line in your Podfile:
pod 'LuhnModN'
By default the mod is 10 because it's the most used.
let visa = try? LuhnModN.addCheckCharacter(to: "401288888888188")To use another modulo, simply add it as parameter :
let hexaString = try? LuhnModN.addCheckCharacter(to: "1450c2697d3a4925a1ec59f5dd3a9956", withModulo: 16)There are two possible errors :
enum LuhnError: Error {
case invalidCharacters
case moduloOutOfRange
}By default the mod is 10 because it's the most used.
LuhnModN.isValid("4012888888881881")To use another modulo, simply add it as parameter :
LuhnModN.isValid("1450c2697d3a4925a1ec59f5dd3a9956b", withModulo : 16)The MIT License (MIT)
Copyright (c) 2015 Arnaud Bultot
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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