https://github.com/mcaimi/go-hotp

Simple HOTP generation library written in Go
https://github.com/mcaimi/go-hotp

Last synced: 3 months ago
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Simple HOTP generation library written in Go

• Host: GitHub
• URL: https://github.com/mcaimi/go-hotp
• Owner: mcaimi
• License: gpl-3.0
• Created: 2023-03-24T07:45:08.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2024-03-11T16:56:14.000Z (over 2 years ago)
• Last Synced: 2025-03-06T10:22:09.520Z (over 1 year ago)
• Language: Go
• Size: 22.5 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Simple HOTP Library written in Go

This is a simple HOTP library that implements the HOTP algorithm described in RFC4226.

The main HOTP function implements token generation following the rfc implementation (SHA-1 based HMAC) but the underlying HotpToken function can accept different HMAC functions.

## Usage

Simply import the library and use the preferred hashing function:

```Go

package main

import (

  "fmt"

  "encoding/hex"

  "github.com/mcaimi/go-hotp/rfc4226"

  )

const (

  KEY = "3132333435363738393031323334353637383930"

  INTERVAL = 0

  )

func main() {

  var token uint32

  key, err := hex.DecodeString(KEY);

  if err != nil {

    fmt.Println(err);

  } else {

    token = rfc4226.Hotp(key, INTERVAL, 6, "sha1");

    fmt.Printf("%d\n", token);

  }

}

```