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https://github.com/dashbitco/nimble_totp
A tiny Elixir library for time-based one time passwords (TOTP)
https://github.com/dashbitco/nimble_totp
2fa elixir totp
Last synced: about 6 hours ago
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A tiny Elixir library for time-based one time passwords (TOTP)
- Host: GitHub
- URL: https://github.com/dashbitco/nimble_totp
- Owner: dashbitco
- Created: 2020-06-12T14:43:23.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2024-11-07T07:30:25.000Z (about 1 month ago)
- Last Synced: 2024-12-05T05:00:54.105Z (7 days ago)
- Topics: 2fa, elixir, totp
- Language: Elixir
- Homepage:
- Size: 43.9 KB
- Stars: 408
- Watchers: 7
- Forks: 16
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
Awesome Lists containing this project
- fucking-awesome-elixir - nimble_totp - Allows implementation of Time-based One-Time Passwords (TOTP) for 2FA. (Cryptography)
- awesome-elixir - nimble_totp - Allows implementation of Time-based One-Time Passwords (TOTP) for 2FA. (Cryptography)
README
# NimbleTOTP
This library allows developers to implement Time-based One-Time Passwords (TOTP)
for their applications as one of the mechanisms for Two-factor authentication (2FA).
It provides functions to:
* Generate secrets composed of random bytes.
* Generate URIs to be encoded in a QR Code.
* Generate Time-Based One-Time Passwords for a secret.
Documentation can be found at https://hexdocs.pm/nimble_totp.
## Installation
You can install `nimble_totp` by adding it to your list of
dependencies in `mix.exs`:
```elixir
def deps do
[
{:nimble_totp, "~> 1.0"}
]
end
```
## Usage
Generating a secret composed of random bytes:
```elixir
secret = NimbleTOTP.secret()
#=> <<63, 24, 42, 30, 95, 116, 80, 121, 106, 102>>
```
Generating a URI to be encoded in a QR Code:
```elixir
NimbleTOTP.otpauth_uri("Acme:alice", secret, issuer: "Acme")
#=> "otpauth://totp/Acme:alice?secret=MFRGGZA&issuer=Acme"
```
Generating a Time-Based One-Time Password for a secret and validating it:
```elixir
NimbleTOTP.verification_code(secret)
#=> "569777"
NimbleTOTP.valid?(secret, "569777")
#=> true
```
## Nimble*
All nimble libraries by Dashbit:
* [NimbleCSV](https://github.com/dashbitco/nimble_csv) - simple and fast CSV parsing
* [NimbleOptions](https://github.com/dashbitco/nimble_options) - tiny library for validating and documenting high-level options
* [NimbleParsec](https://github.com/dashbitco/nimble_parsec) - simple and fast parser combinators
* [NimblePool](https://github.com/dashbitco/nimble_pool) - tiny resource-pool implementation
* [NimblePublisher](https://github.com/dashbitco/nimble_publisher) - a minimal filesystem-based publishing engine with Markdown support and code highlighting
* [NimbleTOTP](https://github.com/dashbitco/nimble_totp) - tiny library for generating time-based one time passwords (TOTP)
## License
Copyright 2020 Dashbit
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.