Add sign_digest/2.

Author: amclain

lib/nerves_key.ex

@@ -57,6 +57,16 @@ defmodule NervesKey do
     serial_number
   end
 
+  @doc """
+  Sign a SHA256 digest
+  """
+  @spec sign_digest(ATECC508A.Transport.t(), binary()) ::
+          {:ok, binary()} | {:error, atom()}
+  def sign_digest(transport, digest) do
+    private_key_slot_id = 0
+    ATECC508A.Request.sign_digest(transport, private_key_slot_id, digest)
+  end
+
   @doc """
   Return ssl_opts for using the NervesKey
 

mix.exs

@@ -52,7 +52,7 @@ defmodule NervesKey.MixProject do
 
   defp deps do
     [
-      {:atecc508a, "~> 0.2.1"},
+      {:atecc508a, "~> 0.3.0"},
       {:nerves_key_pkcs11, "~> 0.2"},
       {:ex_doc, "~> 0.20", only: :docs, runtime: false},
       {:dialyxir, "~> 1.1", only: :dev, runtime: false}

mix.lock

@@ -1,5 +1,5 @@
 %{
-  "atecc508a": {:hex, :atecc508a, "0.2.3", "528061fbf6eef95857ed1e11d6daa7c4608194778540cc0bd80dd5991df0a895", [:mix], [{:circuits_i2c, "~> 0.2", [hex: :circuits_i2c, repo: "hexpm", optional: false]}, {:x509, "~> 0.5.1 or ~> 0.6", [hex: :x509, repo: "hexpm", optional: false]}], "hexpm", "8cf9984d0349c46114ece1b206792ba82e80ee223a82c1a60b9e8e49c1a22d78"},
+  "atecc508a": {:hex, :atecc508a, "0.3.0", "794e2470302d101005b2b9f85d13d0a188675a84f13e668e446cd318b7679f6f", [:mix], [{:circuits_i2c, "~> 0.2", [hex: :circuits_i2c, repo: "hexpm", optional: false]}, {:x509, "~> 0.5.1 or ~> 0.6", [hex: :x509, repo: "hexpm", optional: false]}], "hexpm", "e7041edeab56d0fd8773f46b5dec3398d1f28b75683dfa738d316f84495284be"},
   "circuits_i2c": {:hex, :circuits_i2c, "0.3.8", "fb969ddecdfe621202725ac631a32c1315c86dd9c90e429761a64c2326b113c3", [:make, :mix], [{:elixir_make, "~> 0.6", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "396f21f8932ac957eb10b0e84ee5b090a02bcf3b5616d8599a02ce2e72722c63"},
   "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.13", "0c98163e7d04a15feb62000e1a891489feb29f3d10cb57d4f845c405852bbef8", [:mix], [], "hexpm", "d602c26af3a0af43d2f2645613f65841657ad6efc9f0e361c3b6c06b578214ba"},