Add schemas and functions to query signing keys from servers

priv/repo/migrations/20210812105932_create_signing_key_and_server_key_info_table.exs

@@ -0,0 +1,19 @@
+defmodule MatrixServer.Repo.Migrations.CreateSigningKeyAndServerKeyInfoTable do
+  use Ecto.Migration
+
+  def change do
+    create table(:server_key_info, primary_key: false) do
+      add :server_name, :string, primary_key: true, null: false
+      add :valid_until, :bigint, default: 0, null: false
+    end
+
+    create table(:signing_keys, primary_key: false) do
+      add :server_name,
+          references(:server_key_info, column: :server_name, type: :string, on_delete: :delete_all),
+          null: false
+
+      add :signing_key_id, :string, primary_key: true, null: false
+      add :signing_key, :binary, null: false
+    end
+  end
+end