60 lines
1.7 KiB
PHP
60 lines
1.7 KiB
PHP
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<?php
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/**
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* PHP,AES加解密类
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*
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*/
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class Aes{
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const CIPHER = MCRYPT_RIJNDAEL_128;
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const MODE = MCRYPT_MODE_CBC;
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const COUNT = 16;
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/**
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* 加密方法
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* @param string $content
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* @param string $secret_key
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* @return string
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*/
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public static function encrypt($content,$secret_key){
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$length = self::COUNT;
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if(empty($content)){
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throw new Exception("Error: Missing required arguments: encrypt content");
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}
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if(empty($secret_key) || strlen(trim($secret_key)) < $length){
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throw new Exception("Error: Invalid arguments:encrypt secret key!");
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}
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$secret_key = substr($secret_key,0,$length);
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$content = trim($content);
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$iv = $secret_key;
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$encrypt_content = mcrypt_encrypt(self::CIPHER, $secret_key, $content, self::MODE, $iv);
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return base64_encode($encrypt_content);
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}
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/**
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* 解密方法
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* @param string $content
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* @param string $secret_key
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* @return string
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*/
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public static function decrypt($content,$secret_key){
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$length = self::COUNT;
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if(empty($content)){
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throw new Exception("Error: Missing required arguments: encrypt content");
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}
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if(empty($secret_key) || strlen(trim($secret_key)) < $length){
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throw new Exception("Error: Invalid arguments:encrypt secret key!");
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}
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$secret_key = substr($secret_key,0,$length);
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$content = base64_decode($content);
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$iv = $secret_key;
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$encrypt_content = mcrypt_decrypt(self::CIPHER, $secret_key, $content, self::MODE, $iv);
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$encrypt_content = trim($encrypt_content);
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return $encrypt_content;
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}
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}
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?>
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