주민등록번호 암호화 > 정보공유

<?php
define("ENCRYPT_METHOD",'AES-256-CTR');
define("ENCRYPT_PASSWORD",'3631c77751a8d47ba700c4405dcaadf3');

function decrypt_rrn($rrn){
    return openssl_decrypt($rrn,ENCRYPT_METHOD,ENCRYPT_PASSWORD);
}

function encrypt_rrn($rrn){
    return openssl_encrypt($rrn,ENCRYPT_METHOD,ENCRYPT_PASSWORD);
}

$mb_1 = "740831-1111111";

$jumin1 = substr($mb_1, 0, 6);
$jumin2 = substr($mb_1, 7, 8);


// 주민번호 암호화
if ($jumin2) {
	$mb_rrn = encrypt_rrn($jumin2);
	$jumin2 = substr($jumin2, 0, 1) . '******';
}

//echo $jumin1;
echo $jumin2;

////////////////////////////////////////////////////////////

define("ENCRYPT_METHOD",'AES-256-CTR');
define("ENCRYPT_PASSWORD",'3631c77751a8d47ba700c4405dcaadf3');

function encrypt_rrn($rnn)
{
    $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length(ENCRYPT_METHOD));
    $encrypted = openssl_encrypt($rnn,ENCRYPT_METHOD,ENCRYPT_PASSWORD,0,$iv);
    return base64_encode($encrypted.'::'.$iv);
}

function decrypt_rrn($rnn)
{
    list($encrypted,$iv) = explode('::',base64_decode($rnn),2);
    return openssl_decrypt($encrypted,ENCRYPT_METHOD,ENCRYPT_PASSWORD,0,$iv);
}
?>

결과

1******