markrenaud/base32encoder

A pure Swift library that encodes data to Base32 strings

Base32Encoder

Base32Encoder is a pure Swift library that encodes Data to a Base32 String, and decodes a Base32String to Data.

About

Encodes data as per the [RFC 3548 / RFC 4648] specification for Base32 data encodings.

This library was written for a project that required encoding of small data packets and to learn bit bashing. This means the code is written for learning and has not been optimized for elegance or performance.

Installation

Carthage

Simply add the requirement to your Cartfile: github "markrenaud/Base32Encoder"

Manually

Copy Base32.swift to your project

Usage

If the Base32Encoder was installed as a library, you must import it (this can be skipped if it was manually added to your project). import Base32Encoder

You can then encode data (and optionally pad as per RFC 3548 2.2 - Padding of encoded data)

let data = "hi".data(using: .ascii)!
let base32 = Base32.encode(data: data) // = "NBUQ"
let base32padded = Base32.encode(data: data, padding: true) // = "NBUQ===="

And decode Base32 strings back to dataf

let decodeBase32Data = Base32.decode(string: "NBUQ")
let decodedString = String(data: decodeBase32DataPadded!, encoding: .ascii) // = "hi"

Or you can use the Data and String extensions

let base32 = data.base32String(padded: true) // = "NBUQ===="

if let decoded = try? "NBUQ====".decodeBase32(padded: true) {
    let string = String(data: decoded, encoding: .ascii)    // = "hi"
}

Licence

This project is licensed under the MIT license. See the LICENCE file for more info.