PHP Mcrypt Encrypt Decrypt Sample
Replace your-own $key value.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | function encrypt($text) { $key = '6wMwDU8rvMms6ZrY';// 24 bit Key $iv = "fYfhHeDm";// 8 bit IV $bit_check=8;// bit amount for diff algor. $text_num =str_split($text,$bit_check); $text_num = $bit_check-strlen($text_num[count($text_num)-1]); for ($i=0;$i<$text_num; $i++) {$text = $text . chr($text_num);} $cipher = mcrypt_module_open(MCRYPT_TRIPLEDES,'','cbc',''); mcrypt_generic_init($cipher, $key, $iv); $decrypted = mcrypt_generic($cipher,$text); mcrypt_generic_deinit($cipher); return base64_encode($decrypted);}function decrypt($encrypted_text){ $key = '6wMwDU8rvMms6ZrY';// 24 bit Key $iv = "fYfhHeDm";// 8 bit IV $bit_check=8;// bit amount for diff algor. $cipher = mcrypt_module_open(MCRYPT_TRIPLEDES,'','cbc',''); mcrypt_generic_init($cipher, $key, $iv); $decrypted = mdecrypt_generic($cipher,base64_decode($encrypted_text)); mcrypt_generic_deinit($cipher); $last_char=substr($decrypted,-1); for($i=0;$i<$bit_check-1; $i++){ if(chr($i)==$last_char){ $decrypted=substr($decrypted,0,strlen($decrypted)-$i); break; } } return $decrypted;} |
1 2 | $userid_dec = str_replace("\x0", '', $userid_dec); //패딩제거$userid_dec = str_replace("\x7", '', $userid_dec); //패딩제거 |
$key = ‘12345678901234567890123456789012’;
$iv = ‘1234567890123456’;
$input = “student”;
$td = mcrypt_module_open(‘rijndael-128’, ”, ‘cbc’, ”);
mcrypt_generic_init($td, $key, $iv);
$encrypted_data = mcrypt_generic($td, $input);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
echo base64_encode($encrypted_data);