1 files changed, 28 insertions, 0 deletions
diff --git a/lib/json_web_token/hmac_token.rb b/lib/json_web_token/hmac_token.rb
new file mode 100644
index 00000000000..ceb1b9c913f
--- /dev/null
+++ b/lib/json_web_token/hmac_token.rb
@@ -0,0 +1,28 @@
+# frozen_string_literal: true
+
+require 'jwt'
+
+module JSONWebToken
+  class HMACToken < Token
+    IAT_LEEWAY = 60
+    JWT_ALGORITHM = 'HS256'
+
+    def initialize(secret)
+      super()
+
+      @secret = secret
+    end
+
+    def self.decode(token, secret, leeway: IAT_LEEWAY, verify_iat: true)
+      JWT.decode(token, secret, true, leeway: leeway, verify_iat: verify_iat, algorithm: JWT_ALGORITHM)
+    end
+
+    def encoded
+      JWT.encode(payload, secret, JWT_ALGORITHM)
+    end
+
+    private
+
+    attr_reader :secret
+  end
+end