# File lib/fog/storage/requests/aws/post_object_hidden_fields.rb, line 28 def post_object_hidden_fields(options = {}) if options['policy'] options['policy'] = options['policy'].to_json options['AWSAccessKeyId'] = @aws_access_key_id string_to_sign = Base64.encode64(options['policy']).chomp! signed_string = @hmac.sign(string_to_sign) options['Signature'] = Base64.encode64(signed_string).chomp! end options end