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。

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; $iprikey) === 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：

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
在配置中声明
文件地址 /config/app.php 在providershe和aliases中添加
'providers' => [
 \App\Providers\MyCryptServiceProvider::class,
],

'aliases' => [
 'MyCrypt' => \App\Facades\CryptFacades::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。
 [
  '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
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');