lib/signature.rb in signature-0.1.2 vs lib/signature.rb in signature-0.1.3

@@ -1,6 +1,6 @@
-require 'hmac-sha2'
+require 'openssl'
 
 module Signature
   class AuthenticationError < RuntimeError; end
 
   class Token
@@ -88,10 +88,11 @@
     end
 
     private
 
       def signature(token)
-        HMAC::SHA256.hexdigest(token.secret, string_to_sign)
+        digest = OpenSSL::Digest::SHA256.new
+        OpenSSL::HMAC.hexdigest(digest, token.secret, string_to_sign)
       end
 
       def string_to_sign
         [@method, @path, parameter_string].join("\n")
       end