diff --git a/app/models/api_user.rb b/app/models/api_user.rb
index 55122cf98..b38f368e1 100644
--- a/app/models/api_user.rb
+++ b/app/models/api_user.rb
@@ -46,13 +46,14 @@ class ApiUser < User
   end
 
   def registrar_pki_ok?(crt, cn)
-    logger.error(crt)
-    # cert = OpenSSL::X509::Certificate.new(crt)
-    # md5 = OpenSSL::Digest::MD5.new(cert.to_der).to_s
-    # logger.error(md5)
-    # logger.error(cn)
-    # certificates.registrar.exists?(md5: md5, cn: cn)
-    true
+    crt.split(' ').join("\n")
+    crt = crt.gsub("-----BEGIN\nCERTIFICATE-----\n", "-----BEGIN CERTIFICATE-----\n")
+    crt = crt.gsub("\n-----END\nCERTIFICATE-----", "\n-----END CERTIFICATE-----")
+    cert = OpenSSL::X509::Certificate.new(crt)
+    md5 = OpenSSL::Digest::MD5.new(cert.to_der).to_s
+    logger.error(md5)
+    logger.error(cn)
+    certificates.registrar.exists?(md5: md5, cn: cn)
   end
 
   def api_pki_ok?(crt)