A tiny Elixir library for time-based one time passwords (TOTP)
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:
Documentation can be found at https://hexdocs.pm/nimble_totp.
You can install nimble_totp
by adding it to your list of
dependencies in mix.exs
:
def deps do
[
{:nimble_totp, "~> 1.0"}
]
end
Generating a secret composed of random bytes:
secret = NimbleTOTP.secret()
#=> <<63, 24, 42, 30, 95, 116, 80, 121, 106, 102>>
Generating a URI to be encoded in a QR Code:
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:
NimbleTOTP.verification_code(secret)
#=> "569777"
NimbleTOTP.valid?(secret, "569777")
#=> true
All nimble libraries by Dashbit:
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.