init

zenith/zenith_encryption.php

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+<?php
+
+class ZenithEncryption
+{
+    protected $key, $aes_key;
+    public function __construct() {
+        $env = parse_ini_file(__DIR__.'/../../.env');
+        $this->key = sodium_hex2bin($env['encryption.key']);
+        $this->aes_key = $env['aes.key'];
+    }
+    /*
+    public function encrypt($data = null, $random_nonce = true) {
+        if(is_null($data) || !$data || !$this->key) return null;
+        $nonce = random_bytes(SODIUM_CRYPTO_SECRETBOX_NONCEBYTES);
+        if($random_nonce === false) $nonce = "!++Zenith__Encryption++!";
+        $data = sodium_pad($data, 16);
+        $ciphertext = $nonce . sodium_crypto_secretbox($data, $nonce, $this->key);
+        sodium_memzero($data);
+        // sodium_memzero($this->key);
+        
+        return sodium_bin2hex($ciphertext);
+    }
+
+    public function decrypt($data = null) {
+        if(is_null($data) || !$data || !$this->key) return null;
+        $data = sodium_hex2bin($data);
+        $nonce = mb_substr($data, 0, SODIUM_CRYPTO_SECRETBOX_NONCEBYTES, '8bit');
+        $ciphertext = mb_substr($data, SODIUM_CRYPTO_SECRETBOX_NONCEBYTES, null, '8bit');
+        $data = sodium_crypto_secretbox_open($ciphertext, $nonce, $this->key);
+        $data = sodium_unpad($data,16);
+
+        return $data;
+    }
+    */
+
+    //암호화 함수
+    public function encrypt($data)
+    {
+        $key = substr(hex2bin(openssl_digest($this->aes_key, 'sha512')), 0, 16);
+        $enc = @openssl_encrypt($data, "AES-128-ECB", $key, true);
+        return strtoupper(bin2hex($enc));
+    }
+
+    //복호화 함수
+    public function decrypt($data)
+    {
+        $data = hex2bin($data);
+        $key = substr(hex2bin(openssl_digest($this->aes_key, 'sha512')), 0, 16);
+        $dec = @openssl_decrypt($data, "AES-128-ECB", $key, true);
+        return $dec;
+    }
+}
+?>