kill off mcrypt

include/crypto.php

@@ -46,27 +46,29 @@ function pkcs5_unpad($text)
 } 
 
 function AES256CBC_encrypt($data,$key,$iv) {
-	if(get_config('system','openssl_encrypt')) {
-		return openssl_encrypt($data,'aes-256-cbc',str_pad($key,32,"\0"),OPENSSL_RAW_DATA,str_pad($iv,16,"\0"));
-	}
+
+	return openssl_encrypt($data,'aes-256-cbc',str_pad($key,32,"\0"),OPENSSL_RAW_DATA,str_pad($iv,16,"\0"));
+
+/* deprecated in php 7.1
 	return mcrypt_encrypt(
 		MCRYPT_RIJNDAEL_128, 
 		str_pad($key,32,"\0"), 
 		pkcs5_pad($data,16), 
 		MCRYPT_MODE_CBC, 
 		str_pad($iv,16,"\0"));
+*/
 }
 
 function AES256CBC_decrypt($data,$key,$iv) {
-	if(get_config('system','openssl_encrypt')) {
-		return openssl_decrypt($data,'aes-256-cbc',str_pad($key,32,"\0"),OPENSSL_RAW_DATA,str_pad($iv,16,"\0"));
-	}
+	return openssl_decrypt($data,'aes-256-cbc',str_pad($key,32,"\0"),OPENSSL_RAW_DATA,str_pad($iv,16,"\0"));
+/* deprecated in php 7.1
 	return pkcs5_unpad(mcrypt_decrypt(
 		MCRYPT_RIJNDAEL_128, 
 		str_pad($key,32,"\0"), 
 		$data, 
 		MCRYPT_MODE_CBC, 
 		str_pad($iv,16,"\0")));
+*/
 }
 
 function crypto_encapsulate($data,$pubkey,$alg='aes256cbc') {

install/INSTALL.txt

@@ -83,10 +83,9 @@ but may be an issue with nginx or other web server platforms.
     php.ini file - and with no hosting provider restrictions on the use of 
     exec() and proc_open().
 
-    - curl, gd (with at least jpeg and png support), mysqli, mbstring, mcrypt, 
-    and openssl extensions. The imagick extension is not required but desirable.
-
-    - xml extension is required if you want webdav to work.
+    - curl, gd (with at least jpeg and png support), mysqli, mbstring, xml,
+    and openssl extensions. The imagick extension MAY be used instead of gd,
+	but is not required and MAY also be disabled via configuration option. 
 
     - some form of email server or email gateway such that PHP mail() works.