PHP By Example


<?php

/**

 * PHP By Example

 *

 * @copyright 2015 Michel Corne

 * @license   http://www.opensource.org/licenses/gpl-3.0.html GNU GPL v3

 */



require_once 'models/function_core.php';



/**

 * Function configuration

 *

 * Changes to this class may affect other classes.

 *

 * @see docs/function-configuration.txt

 */



class openssl_private_encrypt extends function_core

{

    public $constant_prefix = ['d_padding' => 'OPENSSL'];



    public $examples = [

        [

            'this is some data',

            '$crypted',

            'file:///tmp/private-key.pem',

            'd_key' => 'file:///tmp/public-key.pem',

        ],

        [

            'this is some data',

            '$crypted',

            '-----BEGIN RSA PRIVATE KEY-----

            MIIEogIBAAKCAQEA0llCeBjy18RylTdBih9GMUSZIC3GzeN0vQ9W8E3nwy2jdeUn

            H3GBXWpMo3F43V68zM2Qz5epRNmlLSkY/PJUfJIC8Yc1VEokT52q87hH/XJ5eS8h

            eZnjuSlPAGi8oZ3ImVbruzV7XmlD+QsCSxJW7tBv0dqJ71e1gAAisCXK2m7iyf/u

            l6rT0Zz0ptYH4IZfwc/hQ9JcMg69uM+3bb4oBFsixMmEQwxKZsXk3YmO/YRjRbay

            +6+79bSV/frW+lWhknyGSIJp2CJArYcOdbK1bXx1dRWpbNSExo7dWwuPC0Y7a5AE

            eoZofieQPPBhXlp1hPgLYGat71pDqBjKLvF5GwIDAQABAoIBACPItYsSy3UzYT7L

            OKYTrfBBuD8GKpTqBfkHvAWDa1MD15P92Mr7l0NaCxGfAy29qSa6LdFy/oPM9tGY

            9TxKyV6rxD5sfwEI3+Z/bw6pIe4W5F1eTDaQnHHqehsatkRUQET9yXp+na8w/zRF

            0C0PQKS95tfvcpm59RGCdGQ8+aZw+cIy/xez75W8IS/hagMxe7xYPjpkOkSCCEJU

            zmbVq6AyWodASV0p4H9p8I+c0vO2hJ/ELJ167w6T+2/GlZg979rlyHoTW8jK2BbG

            IRGaPo+c2GANXa686tdpbkPd6oJliXwBSNolxmXShvlveBbPFAJJACzCmbXNj9kH

            6/K+SWkCgYEA7FNudcTkRPV8TzKhJ1AzDjw3VcnraYhY8IlNxbk7RVHLdkoUtwk/

            mImeBlEfCoz9V+S/gRgeQ+1Vb/BCbS24+bN/+IGoNRFMRcOieFt6lQUpj7a9NeSo

            IEclGgUiU7QR3xH73SB4GC3rgSPeHJhJZC5EJq5TzYjXTPGPpBD3zicCgYEA49wz

            zfMDYIH8h4L65r/eJYIbLwpvgktgaYvhijO3qfZSWW+Y19jCBn55f65YOhPGQBHA

            my0f+tVxFNZ/OupbrAIIzogxlCIYHNBawDhoHN/sB3/lSBAjifySNLyRlA62oA0w

            wXvXVLVWMa3aXim3c9AlnLF1fHwcvwpOKSfdye0CgYBb1mBKq+T5V1yjek1d9bCh

            i40FbZ5qOG43q2Ppvn3mBk9G/KroJlPsdy5NziB9/SRGj8JL7I92Xjihc4Cc5PPJ

            NZQ5gklXtg0p30i39PTCDGuGScFlvCIJyRwF7JDWblezlE2INSH2Y4HtgX7DJfr/

            T2t0jLJMYS0p3YWwgFeMaQKBgHUIe/8y6zAdc5QynSX5tGL1gXrW1FFK39k2RICU

            cag1YTSYkhuDNJzbRxJifORPlcsAkzngooVWLb+zMCQVjUI6xUU3RKe+Hz5lccc6

            8ZarGHL9qMkrqOVNudamZ+tw5zIrtDgcoIvcm8nmbrtgl94/MaJar2ph4O3qoByZ

            Ylw9AoGAIdS79s0VKkj4VVXqK47ZcI7jGL4V4C8ujU8YcMNV88xwCoDg9ZIFprWA

            P5p/cnvj6aHnqL58XiH0+bE0Lt3J+U6N6JelQQevgBHooMFh4FpDXcVda7xB3rK3

            woqbi8fNhr827H2maxIZPtVG95/mvR4k5z1Jrdnr34ZUmtC6U5Q=

            -----END RSA PRIVATE KEY-----',

            'd_key' =>

                '-----BEGIN PUBLIC KEY-----

                MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0llCeBjy18RylTdBih9G

                MUSZIC3GzeN0vQ9W8E3nwy2jdeUnH3GBXWpMo3F43V68zM2Qz5epRNmlLSkY/PJU

                fJIC8Yc1VEokT52q87hH/XJ5eS8heZnjuSlPAGi8oZ3ImVbruzV7XmlD+QsCSxJW

                7tBv0dqJ71e1gAAisCXK2m7iyf/ul6rT0Zz0ptYH4IZfwc/hQ9JcMg69uM+3bb4o

                BFsixMmEQwxKZsXk3YmO/YRjRbay+6+79bSV/frW+lWhknyGSIJp2CJArYcOdbK1

                bXx1dRWpbNSExo7dWwuPC0Y7a5AEeoZofieQPPBhXlp1hPgLYGat71pDqBjKLvF5

                GwIDAQAB

                -----END PUBLIC KEY-----',

        ],

    ];



    public $input_args = ['d_key', 'd_padding'];



    public $source_code = '

        inject_function_call



        // shows the result in base64 and decrypted

        if ($bool) {

            $base64 = base64_encode($crypted);

            $d_bool = openssl_public_decrypt(

                $crypted,

                $decrypted,

                $d_key, // mixed $d_key

                $d_padding // [int $d_padding]);

        }

    ';



    public $synopsis = 'bool openssl_private_encrypt ( string $data , string &$crypted , mixed $key [, int $padding = OPENSSL_PKCS1_PADDING ] )';



    function post_exec_function()

    {

        if (! $this->result['bool']) {

            return;

        }



        $crypted = isset($this->result['crypted']) ? $this->result['crypted'] : null;

        $this->result['base64'] = base64_encode($crypted);



        $d_key     = $this->_filter->filter_arg_value('d_key');

        $d_padding = $this->_filter->filter_arg_value('d_padding');



        $decrypt_method = $this->decrypt_method ?: 'openssl_public_decrypt';



        if (is_null($d_padding)) {

            $this->result['d_bool'] = $decrypt_method($crypted, $decrypted, $d_key);

        } else {

            $this->result['d_bool'] = $decrypt_method($crypted, $decrypted, $d_key, $d_padding);

        }



        $this->result['decrypted'] = $decrypted;

    }



    function pre_exec_function()

    {

        $this->copy_file_to_temp('private-key.pem');

        $this->copy_file_to_temp('public-key.pem');

    }

}
Configuration of openssl_private_encrypt()
