انا جربت هذا ولم يشتغل وهذه هي الاكواد
الصفحة ١
<?php
session_start( ) ;
class AES256Encryption
{
public const BLOCK_SIZE = 8;
public const IV_LENGTH = 16;
public const CIPHER = 'AES256';
public static function generateIv(bool $allowLessSecure = false): string
{
$success = false;
$random = openssl_random_pseudo_bytes(openssl_cipher_iv_length(static::CIPHER));
if (!$success) {
if (function_exists('sodium_randombytes_random16')) {
$random = sodium_randombytes_random16();
} else {
try {
$random = random_bytes(static::IV_LENGTH);
}
catch (Exception $e) {
if ($allowLessSecure) {
$permitted_chars = implode(
'',
array_merge(
range('A', 'z'),
range(0, 9),
str_split('~!@#$%&*()-=+{};:"<>,.?/\'')
)
);
$random = '';
for ($i = 0; $i < static::IV_LENGTH; $i++) {
$random .= $permitted_chars[mt_rand(0, (static::IV_LENGTH) - 1)];
}
}
else {
throw new RuntimeException('Unable to generate initialization vector (IV)');
}
}
}
}
return $random;
}
protected static function getPaddedText(string $plainText): string
{
$stringLength = strlen($plainText);
if ($stringLength % static::BLOCK_SIZE) {
$plainText = str_pad($plainText, $stringLength + static::BLOCK_SIZE - $stringLength % static::BLOCK_SIZE, "\0");
}
return $plainText;
}
public static function encrypt(string $plainText, string $key, string $iv): string
{
$plainText = static::getPaddedText($plainText);
return base64_encode(openssl_encrypt($plainText, static::CIPHER, $key, OPENSSL_RAW_DATA, $iv));
}
public static function decrypt(string $encryptedText, string $key, string $iv): string
{
return openssl_decrypt(base64_decode($encryptedText), static::CIPHER, $key, OPENSSL_RAW_DATA, $iv);
}
}
$text = 'ali';
$key = 'secretkey';
$iv = AES256Encryption::generateIv();
$encryptedText = AES256Encryption::encrypt($text, $key, $iv);
$_SESSION['id_userf'] = $encryptedText;
echo $encryptedText.'<br>';
صفحة ٢
<?php
session_start( ) ;
class AES256Encryption
{
public const BLOCK_SIZE = 8;
public const IV_LENGTH = 16;
public const CIPHER = 'AES256';
public static function generateIv(bool $allowLessSecure = false): string
{
$success = false;
$random = openssl_random_pseudo_bytes(openssl_cipher_iv_length(static::CIPHER));
if (!$success) {
if (function_exists('sodium_randombytes_random16')) {
$random = sodium_randombytes_random16();
} else {
try {
$random = random_bytes(static::IV_LENGTH);
}
catch (Exception $e) {
if ($allowLessSecure) {
$permitted_chars = implode(
'',
array_merge(
range('A', 'z'),
range(0, 9),
str_split('~!@#$%&*()-=+{};:"<>,.?/\'')
)
);
$random = '';
for ($i = 0; $i < static::IV_LENGTH; $i++) {
$random .= $permitted_chars[mt_rand(0, (static::IV_LENGTH) - 1)];
}
}
else {
throw new RuntimeException('Unable to generate initialization vector (IV)');
}
}
}
}
return $random;
}
protected static function getPaddedText(string $plainText): string
{
$stringLength = strlen($plainText);
if ($stringLength % static::BLOCK_SIZE) {
$plainText = str_pad($plainText, $stringLength + static::BLOCK_SIZE - $stringLength % static::BLOCK_SIZE, "\0");
}
return $plainText;
}
public static function encrypt(string $plainText, string $key, string $iv): string
{
$plainText = static::getPaddedText($plainText);
return base64_encode(openssl_encrypt($plainText, static::CIPHER, $key, OPENSSL_RAW_DATA, $iv));
}
public static function decrypt(string $encryptedText, string $key, string $iv): string
{
return openssl_decrypt(base64_decode($encryptedText), static::CIPHER, $key, OPENSSL_RAW_DATA, $iv);
}
}
$key = 'secretkey';
$iv = AES256Encryption::generateIv();
$decryptedText = AES256Encryption::decrypt($_SESSION['id_userf'], $key, $iv);
echo $decryptedText;