diff --git a/ChangeLog b/ChangeLog
index 3ad6d0c51e..c426a85319 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Dec 27 08:22:15 2005  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+
+	* ext/openssl/lib/openssl/ssl.rb (OpenSSL::SSL::SSLSocket#post_connection_chech):
+	  treat wildcard character in commonName. [ruby-dev:28121]
+
 Wed Dec 21 16:47:35 2005  Hirokazu Yamamoto  <ocean@m2.ccsnet.ne.jp>
 
 	* file.c (w32_io_info): should return handle because FileIndex is
diff --git a/ext/openssl/lib/openssl/ssl.rb b/ext/openssl/lib/openssl/ssl.rb
index 9b287fc939..a535fc1715 100644
--- a/ext/openssl/lib/openssl/ssl.rb
+++ b/ext/openssl/lib/openssl/ssl.rb
@@ -82,8 +82,9 @@ module OpenSSL
         }
         if check_common_name
           cert.subject.to_a.each{|oid, value|
-            if oid == "CN" && value.casecmp(hostname) == 0
-              return true
+            if oid == "CN"
+              reg = Regexp.escape(value).gsub(/\\\*/, "[^.]+")
+              return true if /\A#{reg}\z/i =~ hostname
             end
           }
         end