85 lines
2.3 KiB
PHP
85 lines
2.3 KiB
PHP
<?php
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namespace App\Services;
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use Exception;
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class LegacyEncryption
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{
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private $key;
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private $iv;
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public function __construct()
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{
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$keyPath = config('intaleq.legacy_enc_key_path', '/home/intaleq-api/.enckey');
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if (file_exists($keyPath)) {
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$this->key = trim(file_get_contents($keyPath));
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} else {
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$this->key = env('LEGACY_ENC_KEY', '');
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}
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$this->iv = config('intaleq.legacy_iv', env('initializationVector', ''));
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if (strlen($this->iv) !== 16) {
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$this->iv = str_pad($this->iv, 16, "\0");
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}
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if (strlen($this->key) !== 32) {
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// Log warning or throw error in production
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}
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if (strlen($this->iv) !== 16) {
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// Log warning
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}
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}
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/**
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* Encrypt data using AES-256-CBC (Legacy V1 compatibility)
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*/
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public function encrypt($plainText)
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{
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if (empty($plainText)) return $plainText;
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try {
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$plainText = (string) $plainText;
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$paddedText = $this->addPadding($plainText);
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$encrypted = openssl_encrypt($paddedText, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
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return base64_encode($encrypted);
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} catch (Exception $e) {
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return $plainText;
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}
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}
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/**
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* Decrypt data using AES-256-CBC (Legacy V1 compatibility)
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*/
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public function decrypt($encryptedText)
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{
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if (empty($encryptedText)) return $encryptedText;
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try {
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$decoded = base64_decode($encryptedText, true);
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if ($decoded === false) return $encryptedText;
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$decrypted = openssl_decrypt($decoded, 'AES-256-CBC', $this->key, OPENSSL_RAW_DATA, $this->iv);
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if ($decrypted === false) return $encryptedText;
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return $this->removePadding($decrypted);
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} catch (Exception $e) {
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return $encryptedText;
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}
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}
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private function addPadding($data, $blockSize = 16)
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{
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$pad = $blockSize - (strlen($data) % $blockSize);
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return $data . str_repeat(chr($pad), $pad);
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}
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private function removePadding($data)
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{
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$pad = ord($data[strlen($data) - 1]);
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if ($pad < 1 || $pad > 16) return $data;
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return substr($data, 0, -$pad);
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}
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}
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