52 lines
1.3 KiB
PHP
Executable File
52 lines
1.3 KiB
PHP
Executable File
<?php
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class AES
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{
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public $cipher = 'aes-128-cbc';
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public $secret = 've2HSq011whZYgKE';
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/**
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* 使用对称密钥进行加密
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* @param $plainText
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* @param $iv
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* @return string
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*/
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function encrypt($plainText, $iv = null)
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{
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$plainText = json_encode($plainText);
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if (!empty($iv)) {
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$encryptedData = openssl_encrypt($plainText, $this->cipher, $this->secret, OPENSSL_RAW_DATA, $iv);
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} else {
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$encryptedData = openssl_encrypt($plainText, $this->cipher, $this->secret);
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}
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return base64_encode($encryptedData);
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}
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/**
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* 使用对称秘钥解密
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* @param $plainText
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* @param $iv
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* @return false|string
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*/
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function decrypt($plainText, $iv = null) {
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$plainText = base64_decode($plainText);
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if (!empty($iv)) {
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$data = openssl_decrypt($plainText, $this->cipher, $this->secret, OPENSSL_RAW_DATA, $iv);
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$data = json_decode($data, true);
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return $data;
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}
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return openssl_decrypt($plainText, $this->cipher, $this->secret);
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}
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/**
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* 生成iv
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* @param int $timestamp 时间戳
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* @return false|string
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*/
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public function buildIv(int $timestamp)
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{
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return substr(md5($this->secret . $timestamp), 5, 16);
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}
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} |