replace :aes_256_gcm with :aes_gcm #118

Author: nelsonic

README.md

@@ -78,7 +78,7 @@ Add the `fields` package to your list of dependencies in your `mix.exs` file:
 ```elixir
 def deps do
   [
-    {:fields, "~> 2.10.0"}
+    {:fields, "~> 2.10.2"}
   ]
 end
 ```

lib/aes.ex

@@ -6,8 +6,9 @@ defmodule Fields.AES do
   this makes "bruteforce" decryption much more difficult.
   See `encrypt/1` and `decrypt/1` for more details.
   """
-  # Use AES 256 Bit Keys for Encryption.
+  # Use AES 256 Bit Keys for Encryption. (aad = "Associated Authenticated Data")
   @aad "AES256GCM"
+  @cipher :aes_gcm
   @doc """
   Encrypt Using AES GCM.
   Uses a random IV for each call, and prepends the IV and Tag to the
@@ -34,7 +35,7 @@ defmodule Fields.AES do
     key = get_key(key_id)
 
     {ciphertext, tag} =
-      :crypto.crypto_one_time_aead(:aes_256_gcm, key, iv, to_string(plaintext), @aad, true)
+      :crypto.crypto_one_time_aead(@cipher, key, iv, to_string(plaintext), @aad, true)
 
     # 1 >> "0001"
     key_id_str = String.pad_leading(to_string(key_id), 4, "0")

mix.exs

@@ -5,7 +5,7 @@ defmodule Fields.MixProject do
     [
       app: :fields,
       description: "A collection of useful fields for building Phoenix apps faster!",
-      version: "2.10.1",
+      version: "2.10.2",
       elixir: ">= 1.10.0",
       start_permanent: Mix.env() == :prod,
       deps: deps(),