<?php
include("openssl_test_header.html");
/**
* Steps to Using Class:
* 1. Include the class file in your source
* 2. Create an instance of the class
* 3. Set the public key path
* 4. Set the private key path
* 5. Set the passphrase ( set to "" if passphrase not used)
* 6. To Encrypt:
* a. Call encrypt_data_public() to encrypt
* b. Call get_encrypted_data() to retrieve data
*
* 7. To Decrypt:
* a. Call decrypt_data_private
* b. Call get_decrypted_data() to retrieve data
*/
//1. Include the class file in your source
require_once("ta_encrypt.inc");
//2. Create an instance of the class
$cls_encrypt = new TA_OpenSSL;
//set or get? required parameters
//this way it works in development environment
//and through test posting page
if (!isset($_POST["public_key"]))
{
$path_to_cert = "F:\\ApacheGroup\\Apache\\htdocs\\cvs_working\\rterra\\online_signup\\includes\\cacert.pem";
}else{
$path_to_cert = $_POST["public_key"];
}
if (!isset($_POST["private_key"]))
{
$path_to_key = "F:\\ApacheGroup\\Apache\\htdocs\\cvs_working\\rterra\\online_signup\\includes\\privkey.pem";
}else{
$path_to_key = $_POST["private_key"];
}
if (!isset($_POST["passphrase"]))
{
$pass_phrase = "testing";
}else{
$pass_phrase = $_POST["passphrase"];
}
if (!isset($_POST["encrypt_string"]))
{
$string_to_encrypt = "411111111111-09/2004";
}else{
$string_to_encrypt = $_POST["encrypt_string"];
}
// 3. set the public key path
$cls_encrypt->set_public_key($path_to_cert);
// 4. set the private key path
$cls_encrypt->set_private_key($path_to_key);
// 5. set the passphrase if applicable
$cls_encrypt->set_passphrase($pass_phrase);
echo ("<div class=\"data-header\">Data to Encrypt:</div>\n");
echo ("<div class=\"data\">".$string_to_encrypt."</div>\n");
echo ("<div class=\"processing\">Encrypting Data....</div>\n\n");
// 6a. Call encrypt_data_public() to encrypt
$ret = $cls_encrypt->encrypt_data_public($string_to_encrypt);
if ( $ret != TA_SUCCESS )
{
print_error($cls_encrypt->get_error_number(), $cls_encrypt->get_error_string(),$cls_encrypt);
die();
}
//6b. Call get_encrypted_data() to retrieve data
$encrypted_data = $cls_encrypt->get_encrypted_data();
//output encryption strength just for fun:)
$encryption_strength = strlen($encrypted_data) * 8;
echo ("<div class=\"data-header\">Encryption Strength:</div>\n");
echo ("<div class=\"data\">".$encryption_strength." bit Encryption</div>\n");
echo ("<div class=\"data-header\">Encrypted Data:</div>\n");
echo ("<div class=\"data\">".$encrypted_data."</div>\n");
echo ("<div class=\"data-header\">URL Encoded Encrypted Data:</div>\n");
echo ("<div class=\"data\">". urlencode($encrypted_data)."</div>\n");
echo ("<div class=\"data-header\">Hex Encoded Encrypted Data:</div>\n");
echo ("<div class=\"data\">". bin2hex($encrypted_data)."</div>\n");
echo ("<div class=\"processing\">Decrypting Data...</div>\n\n");
//7a. Call decrypt_data_private
$ret = $cls_encrypt->decrypt_data_private($encrypted_data);
if ( $ret != TA_SUCCESS )
{
print_error($cls_encrypt->get_error_number(), $cls_encrypt->get_error_string(),$cls_encrypt);
die();
}
//7b. Call get_decrypted_data() to retrieve data
$decrypted_data = $cls_encrypt->get_decrypted_data();
echo ("<div class=\"data-header\">Decrypted Data:</div>\n");
echo ("<div class=\"data\">".$decrypted_data."</div>\n");
echo ("<div class=\"email\"><a href=\"mailto:".hex_encode("dev@terraaccess.com")."\">TA Developement Center Email</a></div>\n\n");
echo ("</body></html>");
function print_error($errno, $error, $cls)
{
echo( "<div class=\"error\"><p>Class Error(s):</p>".$errno." ** ".$error."</div>");
echo( "<div class=\"error\"><p>OpenSSL Error(s):</p>");
$cls->kick_openssl_errors();
echo( "</div>\n\n");
}
function hex_encode ($email_address) {
$encoded = bin2hex("$email_address");
$encoded = chunk_split($encoded, 2, '%');
$encoded = '%' . substr($encoded, 0, strlen($encoded) - 1);
return $encoded;
}
?>
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