AES加密、解密类

<?php
/**
 * Desc: AES加密解密
 * User: SenSen Wechat:1050575278
 * Date: 2021/4/27
 * Time: 14:14
 */

namespace sensen\services;

class AesService
{
    protected static $method = "AES-128-CBC";
    const KEY = 'fei1zui2you3jie!';
    const IV = 'hello202105world';

    /**
     * 加密
     * @param string|array $data 待加密
     * @param string $key 秘钥
     * @param string $iv 偏移量
     * @return string|string[]|array
     */
    public static function encrypt($data, $key=self::KEY, $iv=self::IV)
    {
        if(is_array($data)){
            $res = [];
            foreach ($data as $v){
                $text = openssl_encrypt($v, static::$method, $key, OPENSSL_RAW_DATA, $iv);
                $res[] = self::safetyBase64Encode($iv . $text);
            }
        }else{
            $text = openssl_encrypt($data, static::$method, $key, OPENSSL_RAW_DATA, $iv);
            $res = self::safetyBase64Encode($iv . $text);
        }
        return $res;
    }

    /**
     * 解密
     * @param string|array $text 待解密
     * @param string $key 秘钥
     * @param string $iv 偏移量
     * @param false $login 是否为登录
     * @return false|string|array
     */
    public static function decrypt($text, $key=self::KEY, $iv=self::IV, $login=false) {
        if(is_array($text)){
            $data = [];
            foreach ($text as $v){
                $cipherText = self::safetyBase64Decode($v);
                $cipherText = substr($cipherText, strlen($iv));
                $data[] = openssl_decrypt($cipherText, static::$method, $key, OPENSSL_RAW_DATA, $iv);
            }
        }else{
            $cipherText = self::safetyBase64Decode($text);
            if($login){
                //仅方便登录使用，登录时iv与key相同
                $data = openssl_decrypt(base64_decode($text), static::$method, $key, OPENSSL_RAW_DATA, $iv);
            }else{
                $cipherText = substr($cipherText, strlen($iv));
                $data = openssl_decrypt($cipherText, static::$method, $key, OPENSSL_RAW_DATA, $iv);
            }
        }

        return $data;
    }

    /**
     * base64安全编码
     * @param string $text
     * @return string|string[]
     */
    public static function safetyBase64Encode($text)
    {
        $text = base64_encode($text);
        $text = str_replace(['+','/'],['-','_'],$text);
        return $text;
    }

    /**
     * base64安全解码
     * @param string $text
     * @return false|string
     */
    public static function safetyBase64Decode($text)
    {
        $text = str_replace(['-','_'],['+','/'],$text);
        $text = base64_decode($text);
        return $text;
    }

}