laravel 5.3中自定义加密服务的方案详解

前言

本文介绍的是laravel 5.3中自定义加密服务的方案，利用laravel的服务容器，实现自定义加密服务注册(示例是支持长字符串的RSA加密)，下面来看看详细的介绍：

创建加密解密服务类

文件地址 /app/Service/Common/CryptService.php 代码如下

下面这个是个人写的支持长字符串的RSA加密类作为示例，自定义加密的话只需更改这个文件的代码就好，其它操作只是为了实现依赖注入。

<?php
namespace AppServiceCommon;
class CryptService
{
 public $config,$keypath, $prikey_path, $pubkey_path, $prikey, $pubkey , $private_key_size;

 public function select($select = "rsa_api")
 {
  $config = config("crypt");
  if (array_key_exists($select, $config)) {
   $this->config = $config[$select];
   $this->private_key_size = $this->config["openssl_config"]["private_key_bits"];
  } else {
   return false;
  }
  $this->keypath = dirname(dirname(dirname(__DIR__))) . $this->config["path"];
  if(!file_exists($this->keypath)){
   mkdir($this->keypath,"0777",true);
  }
  $this->prikey_path = $this->keypath . $this->config["private_key_file_name"];
  $this->pubkey_path = $this->keypath . $this->config["public_key_file_name"];
  if (file_exists($this->prikey_path))
   $this->prikey = file_get_contents($this->prikey_path);
  if (file_exists($this->pubkey_path))
   $this->pubkey = file_get_contents($this->pubkey_path);
  return $this;
 }

 public function makeKey()
 {
  $res = openssl_pkey_new($this->config["openssl_config"]);
  openssl_pkey_export($res, $this->prikey);
  file_put_contents($this->prikey_path, $this->prikey);
  $pubkey = openssl_pkey_get_details($res);
  $this->pubkey = $pubkey["key"];
  file_put_contents($this->pubkey_path, $this->pubkey);
  return $test = ["prikey" => $this->prikey, "pubkey" => $this->pubkey];
 }

 public function encryptPrivate($data){
  $crypt = $this->encrypt_split($data);
  $crypted = "";
  foreach ($crypt as $k=>$c){
   if($k!=0) $crypted.="@";
   $crypted.=base64_encode($this->doEncryptPrivate($c));
  }
  return $crypted;
 }
 public function encryptPublic($data){
  $crypt = $this->encrypt_split($data);
  $crypted = "";
  foreach ($crypt as $k=>$c){
   if($k!=0) $crypted.="@";
   $crypted.=base64_encode($this->doEncryptPublic($c));
  }
  return $crypted;
 }

 public function decryptPublic($data){
  $decrypt = explode("@",$data);
  $decrypted = "";
  foreach ($decrypt as $k=>$d){
   $decrypted .= $this->doDecryptPublic(base64_decode($d));
  }
  return $decrypted;
 }
 public function decryptPrivate($data){
  $decrypt = explode("@",$data);
  $decrypted = "";
  foreach ($decrypt as $k=>$d){
   $decrypted .= $this->doDecryptPrivate(base64_decode($d));
  }
  return $decrypted;
 }
 private function encrypt_split($data){
  $crypt=[];$index=0;
  for($i=0; $i<strlen($data); $i+=117){
   $src = substr($data, $i, 117);
   $crypt[$index] = $src;
   $index++;
  }
  return $crypt;
 }
 private function doEncryptPrivate($data)
 {
  $rs = "";
  if (@openssl_private_encrypt($data, $rs, $this->prikey) === FALSE) {
   return NULL;
  }
  return $rs;
 }

 private function doDecryptPrivate($data)
 {
  $rs = "";
  if (@openssl_private_decrypt($data, $rs, $this->prikey) === FALSE) {
   return null;
  }
  return $rs;
 }
 private function doEncryptPublic($data){
  $rs = "";
  if (@openssl_public_encrypt($data, $rs, $this->pubkey) === FALSE) {
   return NULL;
  }
  return $rs;
 }
 private function doDecryptPublic($data)
 {
  $rs = "";
  if (@openssl_public_decrypt($data, $rs, $this->pubkey) === FALSE) {
   return null;
  }
  return $rs;
 }
}

创建门面facades

文件地址 /app/Facades/CryptFacades.php 代码如下：

<?php
namespace AppFacades;
use IlluminateSupportFacadesFacade;

class CryptFacades extends Facade{
 public static function getFacadeAccessor()
 {
  return "MyCrypt";
 }
}

注册服务

创建文件 /app/Providers/MyCryptServiceProvider.php 代码如下:

其实也可以在AppServiceProvider中注册，就不用另外建个MyCryptServiceProvider.php文件了

而且在/config/app.php中一般也已经有了AppServiceProvider的声明

<?php
namespace AppProviders;

use AppServiceCommonCryptService;
use IlluminateSupportServiceProvider;

class MyCryptServiceProvider extends ServiceProvider
{
 /**
  * Bootstrap the application services.
  *
  * @return void
  */
 public function boot()
 {
  //
 }

 /**
  * Register the application services.
  *
  * @return void
  */
 public function register()
 {
  App::bind("MyCrypt",CryptService::class);
 }
}

在配置中声明

文件地址 /config/app.php 在providershe和aliases中添加

"providers" => [
 AppProvidersMyCryptServiceProvider::class,
],

"aliases" => [
 "MyCrypt" => AppFacadesCryptFacades::class,
]

编写自定义加密解密服务的配置文件

/config/crypt.php 因为我写的CryptService有用到配置文件，所以需要再添加个配置文件。在实际项目中，可以根据需要自行设置配置文件和加密服务类。

<?php
//基于laravel根目录，分隔符最好是用 DIRECTORY_SEPARATOR 常量代替
return [
 "rsa_api" => [
  "path"=>DIRECTORY_SEPARATOR."storage".DIRECTORY_SEPARATOR."rsakey".DIRECTORY_SEPARATOR,
  "private_key_file_name"=>"private_key.pem",
  "public_key_file_name" =>"public_key.pem",
  "openssl_config"=>[
   "digest_alg" => "sha512",
   "private_key_bits" => 1024,
   "private_key_type" => OPENSSL_KEYTYPE_RSA,
  ]
 ],
 "rsa_data"=>[
  "path"=>DIRECTORY_SEPARATOR."storage".DIRECTORY_SEPARATOR."rsakey".DIRECTORY_SEPARATOR,
  "private_key_file_name"=>"private.pem",
  "public_key_file_name" =>"public.pem",
  "openssl_config"=>[
   "digest_alg" => "sha512",
   "private_key_bits" => 1024,
   "private_key_type" => OPENSSL_KEYTYPE_RSA,
  ]
 ]
];

在Controller中使用的示例

1、artisan创建Controller文件

php artisan make:controller IndexController

2、编辑IndexController

<?php
namespace AppHttpControllers;

use IlluminateHttpRequest;
use MyCrypt;
class IndexController extends Controller{

 public function test(){
  $crypt = MyCrypt::select("rsa_api");
  $crypt->makeKey();
  $short = "abcd";
  $long = "
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
   aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";

  $req["short"] = $short;
  $req["short_private_encrypt"] = $crypt->encryptPrivate($short);
  $req["short_public_decrypt"] = $crypt->decryptPublic($req["short_private_encrypt"]);

  $req["long"] = $long;
  $req["long_private_encrypt"] = $crypt->encryptPrivate($long);
  $req["long_public_decrypt"] = $crypt->decryptPublic($req["long_private_encrypt"]);
  dump($req);
  //dd($req);
 }
}

3、在/routes/web.php添加路由

Route::get("/test", "IndexController@test");

4、浏览器访问验证结果

总结

以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对网页设计的支持。