Sign-In with Ethereum - Elixir Library Release
In our continued updates on additional language support to help bolster the adoption of Sign-In with Ethereum, we're happy to announce the alpha release of our Elixir library.
![Sign-In with Ethereum - Elixir Library Release](/content/images/size/w1200/2024/07/SIWE---Elixir-Library.png)
In our continued updates on additional language support to help bolster the adoption of Sign-In with Ethereum, we're happy to announce the alpha release of our Elixir library:
Sign-In with Ethereum can now be found and used as a hex, and be installed in your Elixir project by including it in your list of dependencies in mix.exs
:
def deps do
[
{:siwe, "~> 0.3"}
]
end
This Elixir library was created by leveraging the existing work on our Sign-In with Ethereum Rust library. Our Rust library is called by this library for signature verification and message format validation. The repository has been dual-licensed under Apache-2.0 and MIT, making it as flexible and simple as possible for developers to use in their projects.
Using the Library
To see how this works in iex
, clone the repository and run:
$ mix deps.get
Then create two files, message.txt
and signature.txt
:
./message.txt
should contain:
login.xyz wants you to sign in with your Ethereum account:
0xfA151B5453CE69ABf60f0dbdE71F6C9C5868800E
Sign-In With Ethereum Example Statement
URI: https://login.xyz
Version: 1
Chain ID: 1
Nonce: ToTaLLyRanDOM
Issued At: 2021-12-17T00:38:39.834Z
./signature.txt
should contain:
0x8d1327a1abbdf172875e5be41706c50fc3bede8af363b67aefbb543d6d082fb76a22057d7cb6d668ceba883f7d70ab7f1dc015b76b51d226af9d610fa20360ad1c
and then run:
$ iex -S mix
Once in iex
, you can then run the following in the REPL to see the result:
iex> {:ok, msg} = File.read("./message.txt")
...
iex> {:ok, sig} = File.read("./signature.txt")
...
iex> Siwe.parse_if_valid(String.trim(msg), String.trim(sig))
{:ok, %{
__struct__: Siwe,
address: "0xfA151B5453CE69ABf60f0dbdE71F6C9C5868800E",
chain_id: "1",
domain: "login.xyz",
expiration_time: nil,
issued_at: "2021-12-17T00:38:39.834Z",
nonce: "ToTaLLyRanDOM",
not_before: nil,
request_id: nil,
resources: [],
statement: "Sign-In With Ethereum Example Statement",
uri: "https://login.xyz",
version: "1"
}}
Any valid Sign-In with Ethereum message and signature pair can be substituted. The functions described below can also be tested with msg
, sig
, or a value set to the result Siwe.parse_if_valid
.
Maturity disclaimer: Our Elixir library for Sign-In with Ethereum has not yet undergone a formal security audit. We welcome continued feedback on the usability, architecture, and security of this implementation.
If you're interested in integrating Sign-In with Ethereum into your dapp, app, or service, we are more than happy to help and provide any support we can. As we continue our work supporting Sign-In with Ethereum, we especially welcome implementers who already have users relying on similar workflows, authors of related EIPs, and wallet vendors who would like to do more to support user-owned identities to join us.
If you are interested in being involved, please join our Discord server:
![](https://blog.spruceid.com/content/images/2022/01/image-1.png)