diff --git a/include/crypto.php b/include/crypto.php
index a4ce2cf98..494a2a5b9 100644
--- a/include/crypto.php
+++ b/include/crypto.php
@@ -296,34 +296,6 @@ function salmon_key($pubkey) {
 	return 'RSA' . '.' . base64url_encode($m,true) . '.' . base64url_encode($e,true) ;
 }
 
-// old function for providing mysql compatible encryption and is also
-// used in Friendica 'RINO'. This function is messy and should be retired. 
- 
-
-function aes_decrypt($val,$ky)
-{
-    $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
-    for($a=0;$a<strlen($ky);$a++)
-      $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
-    $mode = MCRYPT_MODE_ECB;
-    $enc = MCRYPT_RIJNDAEL_128;
-    $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
-    return rtrim($dec,(( ord(substr($dec,strlen($dec)-1,1))>=0 and ord(substr($dec, strlen($dec)-1,1))<=16)? chr(ord( substr($dec,strlen($dec)-1,1))):null));
-}
-
-
-
-function aes_encrypt($val,$ky)
-{
-    $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
-    for($a=0;$a<strlen($ky);$a++)
-      $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
-    $mode=MCRYPT_MODE_ECB;
-    $enc=MCRYPT_RIJNDAEL_128;
-    $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
-    return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
-}
-
 function z_obscure($s) {
 	return json_encode(crypto_encapsulate($s,get_config('system','pubkey')));
 }