echajoa/common/lib/encrypt.php

<?php
function upro_encrypt($plainText, $password)
{

	$password = substr(hash('sha256', $password, true), 0, 32);

	// Initial Vector(IV)는 128 bit(16 byte)입니다.
	$iv = chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0);

	// 암호화
	return base64_encode(openssl_encrypt($plainText, 'aes-256-cbc', $password, OPENSSL_RAW_DATA, $iv));

}


function upro_decrypt($encrypted, $password)
{
	$password = substr(hash('sha256', $password, true), 0, 32);

	// Initial Vector(IV)는 128 bit(16 byte)입니다.
	$iv = chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0) . chr(0x0);

	// 복호화
	return openssl_decrypt(base64_decode($encrypted), 'aes-256-cbc', $password, OPENSSL_RAW_DATA, $iv);

}

?>