mirror of
https://github.com/ZeroDream-CN/PHPMC7
synced 2024-11-25 05:32:53 +08:00
51 lines
1.2 KiB
PHP
51 lines
1.2 KiB
PHP
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<?php
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class AES {
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public $iv = null;
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public $key = null;
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public $bit = 256;
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private $cipher;
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public function __construct($bit, $key, $iv, $mode) {
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if(empty($bit) || empty($key) || empty($iv) || empty($mode)) {
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return NULL;
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}
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$this->bit = $bit;
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$this->key = $key;
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$this->iv = $iv;
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$this->mode = $mode;
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switch($this->bit) {
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case 192:
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$this->cipher = MCRYPT_RIJNDAEL_192;
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break;
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case 256:
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$this->cipher = MCRYPT_RIJNDAEL_256;
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break;
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default:
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$this->cipher = MCRYPT_RIJNDAEL_128;
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}
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switch($this->mode) {
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case 'ecb':
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$this->mode = MCRYPT_MODE_ECB;
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break;
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case 'cfb':
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$this->mode = MCRYPT_MODE_CFB;
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break;
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case 'ofb':
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$this->mode = MCRYPT_MODE_OFB;
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break;
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case 'nofb':
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$this->mode = MCRYPT_MODE_NOFB;
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break;
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default:
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$this->mode = MCRYPT_MODE_CBC;
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}
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}
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public function encrypt($data) {
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$data = base64_encode(mcrypt_encrypt($this->cipher, $this->key, $data, $this->mode, $this->iv));
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return $data;
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}
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public function decrypt($data) {
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$data = mcrypt_decrypt( $this->cipher, $this->key, base64_decode($data), $this->mode, $this->iv);
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$data = rtrim(rtrim($data));
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return $data;
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}
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}
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