diff --git a/README.textile b/README.textile
index a411839..53b9581 100644
--- a/README.textile
+++ b/README.textile
@@ -53,7 +53,10 @@ APNS.feedback_host = 'feedback.push.apple.com'
 # Path to the .pem file created earlier
 APNS.pem  = '/path/to/pem/file'
 
-# Password for decrypting the .pem file, if one was used
+# or you can use origin p12 file
+APNS.pem  = '/path/to/pem/file.p12'
+
+# Password for decrypting the .pem or p12 file, if one was used
 APNS.pass = 'xxxx'
 
 ####################
diff --git a/lib/apns/core.rb b/lib/apns/core.rb
index 4ae9109..47c5f33 100644
--- a/lib/apns/core.rb
+++ b/lib/apns/core.rb
@@ -151,8 +151,15 @@ def self.open_connection(host, port)
     raise "The path to your pem file does not exist!" unless File.exist?(self.pem)
     
     context      = OpenSSL::SSL::SSLContext.new
-    context.cert = OpenSSL::X509::Certificate.new(File.read(self.pem))
-    context.key  = OpenSSL::PKey::RSA.new(File.read(self.pem), self.pass)
+
+    if self.pem.end_with?(".p12")
+      pkcs = OpenSSL::PKCS12.new(File.read(self.pem), self.pass)
+      context.cert = pkcs.certificate
+      context.key = pkcs.key
+    else
+      context.cert = OpenSSL::X509::Certificate.new(File.read(self.pem))
+      context.key  = OpenSSL::PKey::RSA.new(File.read(self.pem), self.pass)
+    end
 
     retries = 0
     begin