When I include these 2 functions on a page I seem to get this error: Warning: Cannot modify header information - headers already sent by (output started at /home/vmtgiqlm/public_html/fftest/encryption.php:43) in /home/vmtgiqlm/public_html/fftest/check_login.php on line 40
I don't know why that would happen as these functions do not output any text. Anyway here are the encryption functions that I am using:
<?php
function sf_encrypt($input,$key){
$input = str_replace("\n","",$input);
$input = str_replace("\t","",$input);
$input = str_replace("\r","",$input);
$key = substr(md5($key),0,24);
$td = mcrypt_module_open('tripledes', '', 'ecb', '');
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
mcrypt_generic_init($td, $key, $iv);
$encrypted_data = mcrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return trim(chop(base64_encode($encrypted_data)));
}
function sf_decrypt($input,$key){
$input = str_replace("\n","",$input);
$input = str_replace("\t","",$input);
$input = str_replace("\r","",$input);
$input = trim(chop(base64_decode($input)));
$td = mcrypt_module_open('tripledes', '', 'ecb', '');
$key = substr(md5($key),0,24);
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
mcrypt_generic_init ($td, $key, $iv);
$decrypted_data = mdecrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return trim(chop($decrypted_data));
}
?>I don't know what is going wrong but any help would be appreciated, Thanks
