diff --git a/plugin.rb b/plugin.rb
index 92527d4..b5b487a 100644
--- a/plugin.rb
+++ b/plugin.rb
@@ -105,15 +105,7 @@ after_initialize do
         end
  
         def self.check_all(password, crypted_pass)
-            AlternativePassword::check_vbulletin(password, crypted_pass) ||
-            AlternativePassword::check_vbulletin5(password, crypted_pass) ||
-            AlternativePassword::check_ipb(password, crypted_pass) ||
-            AlternativePassword::check_smf(password, crypted_pass) ||
-            AlternativePassword::check_md5(password, crypted_pass) ||
-            AlternativePassword::check_wordpress(password, crypted_pass) ||
-            AlternativePassword::check_bcrypt(password, crypted_pass) ||
-            AlternativePassword::check_sha256(password, crypted_pass) ||
-            AlternativePassword::check_wbblite(password, crypted_pass) 
+            AlternativePassword::check_smf_bcrypt(password, crypted_pass)
         end
 
         def self.check_bcrypt(password, crypted_pass)
@@ -150,6 +142,17 @@ after_initialize do
             hash == sha1.hexdigest
         end
 
+        def self.check_smf_bcrypt(password, crypted_pass)
+            user, hash = crypted_pass.split(':', 2)
+            sha1 = Digest::SHA1.new
+            sha1.update user + password
+            begin
+              BCrypt::Password.new(hash) == sha1.hexdigest
+            rescue
+              false
+            end
+        end
+
         def self.check_ipb(password, crypted_pass)
             salt, hash = crypted_pass.split(':', 2)
             !salt.nil? && hash == Digest::MD5.hexdigest(Digest::MD5.hexdigest(salt) + Digest::MD5.hexdigest(password))