Created
June 3, 2020 12:27
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| <?php | |
| function get_encrypt($string, $key) | |
| { | |
| srand((double) microtime() * 1000000); | |
| $key = md5($key); | |
| $td = mcrypt_module_open("des", "", "cfb", ""); | |
| $key = substr($key, 0, mcrypt_enc_get_key_size($td)); | |
| $iv_size = mcrypt_enc_get_iv_size($td); | |
| $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); | |
| if (mcrypt_generic_init($td, $key, $iv) != -1) | |
| { | |
| $c_t = mcrypt_generic($td, $string); | |
| mcrypt_generic_deinit($td); | |
| mcrypt_module_close($td); | |
| $c_t = $iv . $c_t; | |
| return $c_t; | |
| } | |
| } | |
| function get_decrypt($string, $key) | |
| { | |
| $key = md5($key); | |
| $td = mcrypt_module_open("des", "", "cfb", ""); | |
| $key = substr($key, 0, mcrypt_enc_get_key_size($td)); | |
| $iv_size = mcrypt_enc_get_iv_size($td); | |
| $iv = substr($string, 0, $iv_size); | |
| $string = substr($string, $iv_size); | |
| if (mcrypt_generic_init($td, $key, $iv) != -1) | |
| { | |
| $c_t = mdecrypt_generic($td, $string); | |
| mcrypt_generic_deinit($td); | |
| mcrypt_module_close($td); | |
| return $c_t; | |
| } | |
| } |
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