本文介紹的是laravel 5.3中自定義加密服務的方案，利用laravel的服務容器，實現自定義加密服務注冊(示例是支持長字符串的RSA加密)，下面來看看詳細的介紹：

創建加密解密服務類

文件地址 /app/Service/Common/CryptService.php 代碼如下

下面這個是個人寫的支持長字符串的RSA加密類作為示例，自定義加密的話只需更改這個文件的代碼就好，其它操作只是為了實現依賴注入。

<?php namespace App\Service\Common; 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; } }

創建門面facades

文件地址 /app/Facades/CryptFacades.php 代碼如下：

<?php namespace App\Facades; use \Illuminate\Support\Facades\Facade; class CryptFacades extends Facade{ public static function getFacadeAccessor() { return 'MyCrypt'; } }

注冊服務

創建文件 /app/Providers/MyCryptServiceProvider.php 代碼如下:

其實也可以在AppServiceProvider中注冊，就不用另外建個MyCryptServiceProvider.php文件了

而且在/config/app.php中一般也已經有了AppServiceProvider的聲明

<?php namespace App\Providers; use App\Service\Common\CryptService; use Illuminate\Support\ServiceProvider; 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); } }

在配置中聲明

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, ]

編寫自定義加密解密服務的配置文件

/config/crypt.php 因為我寫的CryptService有用到配置文件，所以需要再添加個配置文件。在實際項目中，可以根據需要自行設置配置文件和加密服務類。