급하게 메뉴얼 보고 클래스로 만들어보았습니다.

openssl이 사용 가능해야 사용됩니다.~

[code]

<?php

// http://php.net/manual/en/function.openssl-pkey-new.php

class TBRsa {

public $privateKey, $publicKey;

public function __construct($pubKey='', $privKey='') {

if($pubKey) $this->publicKey = $pubKey;

if($privKey) $this->privateKey = $privKey;

}

public function MakeKey() {

$res = openssl_pkey_new(array(

"digest_alg" => "sha256",

"private_key_bits" => 2048,

"private_key_type" => OPENSSL_KEYTYPE_RSA

));

openssl_pkey_export($res, $privKey);

$this->privateKey = $privKey;

$pubKey = openssl_pkey_get_details($res);

$this->publicKey = $pubKey['key'];

}

public function ViewKey() {

return array('publicKey'=>$this->publicKey, 'privateKey'=>$this->privateKey);

}

public function Encrypt($data) {

$pubKey = $this->publicKey;

if(!$pubKey) die('공개키를 입력하세요.');

openssl_public_encrypt($data, $encrypted, $pubKey);

return base64_encode($encrypted);

}

public function Decrypt($data) {

$privKey = $this->privateKey;

if(!$privKey) die('개인키를 입력하세요.');

$data = base64_decode($data);

openssl_private_decrypt($data, $decrypted, $privKey);

return $decrypted;

}

}

$pb = '-----BEGIN PUBLIC KEY-----

MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx0sWpnpwQ6tGZV0KGgpu

xTZXpretvCxuBWTxzZbC2hi86fz05f9PDtQHagHnn1bywNIieMOzbZ78Z/o178GV

dAVz3nZyC2LxRxDd1ylZLJz0HWiUxR0t35S04Smr83KBFS4FqNPKrz8jTF3VyEfp

rtC4+2YK7nEN4agD1prsaUUsnqEORm0Amyh8TXxNCfSbKazvDYhGTXyWXH6AzHPn

FyeNLo73DjibLRua8SvV0MjPjz2EUK/eRm7FzIBKSpOuGRITZBCHjYiHid6tJJ8G

XQIvVR7dhPwtIvNvDc985OB03eZmL3hJZD3N4JF/ivaNWcO6DU+6EPgvNealkADi

2QIDAQAB

-----END PUBLIC KEY-----'; // 공개키

$pv = '-----BEGIN PRIVATE KEY-----

MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQDHSxamenBDq0Zl

XQoaCm7FNlemt628LG4FZPHNlsLaGLzp/PTl/08O1AdqAeefVvLA0iJ4w7Ntnvxn

+jXvwZV0BXPednILYvFHEN3XKVksnPQdaJTFHS3flLThKavzcoEVLgWo08qvPyNM

XdXIR+mu0Lj7ZgrucQ3hqAPWmuxpRSyeoQ5GbQCbKHxNfE0J9JsprO8NiEZNfJZc

foDMc+cXJ40ujvcOOJstG5rxK9XQyM+PPYRQr95GbsXMgEpKk64ZEhNkEIeNiIeJ

3q0knwZdAi9VHt2E/C0i828Nz3zk4HTd5mYveElkPc3gkX+K9o1Zw7oNT7oQ+C81

5qWQAOLZAgMBAAECggEBAIVgB2SbBI8FDTPBNIWA/ekWGUsGGkuZIHiTug/xGa6E

Z8ng9LUITIyL8fpMFAtbUVMiTtergWWXxSyBE5/FWpQvIgB8HI7qRLde3lik330v

/V/BIe9ZO94p03PtQ5rFwwW9qyP1uevWwXTWR8CmAApyvZniDObO2o9utkLlo9o+

tlzaLWPl4Thgfj+h2hdQJYVDFQ23offETMfikv7xHF78Giygu6BtcvP8n+4pyFyZ

fynCRakVsWZHcg1okpJrFprNqGPUJcrj20TyfctB9wFuqhAADkEirYESM318LHCl

HvbG5iSnAJrE+GPq7gNk++CDhZT+tTZoGyK/NAYUItECgYEA8BKwHf7+YCrBEw69

lZqrvNj6gMA82Rk9err8QB0fEBAu+iU96Zj83+yfbHcGi+4SEdJ/hOwq6qUuuqkZ

1ZtkYjoTenpBTpZ0uNWgjJIc80joaVkLaOY1mCdLye6AbyzbpJAsd6TlscFxWHVA

/Tt+6zIf0YE2fCgq0mL2wf7uZ1MCgYEA1IPQMWeztDljbUKSxHSeOGE5IS6c1uZH

EOndbeYyPmJHRTdu721KAAYYv0JQHZsTCIWof5hIj9JSFrycgRZkZ6SaI8vINX33

f42R22KICcQ+gE03xTUIGgQJxOw6PXtmndnwBX544UMXDqnvZcRNN1VhbV2K/7rT

AOnZpXrAY6MCgYEAvPqpAmPIz+C37Y2L9Wk0yUqwHou1GlyBBcyNZtbFrfpfUG/i

hbD1VjvI3zPuxlXYiYj+8p6Jxf3ThAI7IOfapGv9C0uTfw52wU0AvccC3QvGT69V

iPS2uZgtU77YASv5llgbeO8oFL4mwDBEwVKFPRVO8LdbMW7ZDpXykpFgD5sCgYAq

yyRIXpaMSyYfYVGGp+kYd1N2wBkrGRHkcQN61uj1MPsjEAeRxRMqsA+Zq/PQEmMh

yzBkCTlLZNHM7Ewjnmu3hyjW3nlBdE07bTma0NuOA+uGEIaTeptYCcoh0mPj7455

aOJxaMdUrRrehA/GEWJvKw1EZZrQ5kEJJQ4DyZUmOwKBgH7+lhffVhG67oPcqKAs

JdjP3rCDGckoZO6g7lONWiKzlgZHX8hb2SJjys6vW0+tE/1M3rdHG/Q/y5rV/IaK

vvIgKJy74uj6AJtbystK/1uqLmuVEYgN+5NJj9J2hSf30flel1xVOYxMQnjJ6LI7

cMxleiKYRi/4rc5OwKe3eVrK

-----END PRIVATE KEY-----'; // 개인키

$TE = new TBRsa($pb, $pv);

$en = $TE->Encrypt('와웅');

$dn = $TE->Decrypt($en);

echo $en.'<hr>';

echo $dn;

[/code]