php openssl rsa 加密解密

1.  

2. // 注意先開啓 OpenSSL 擴展,php -m |grep openssl 確認
   
   class Rsa
   
   {
   
      private $privateKey = '';
   
      private $publicKey = '';
   
      public function __construct($privateKey, $publicKey = false)
   
      {
   
          if ($privateKey && openssl_pkey_get_private($privateKey)) {
   
              $this->privateKey = $privateKey;
   
          }
   
           throw new Exception('祕鑰信息不正確', 500);
   
          if ($publicKey) {
   
              if (openssl_pkey_get_public($publicKey)) {
   
                  $this->publicKey = $publicKey;
   
              }
   
              throw new Exception('公鑰信息不正確', 500);
   
          }
   
      }
   
      public function getPublicKey ()
   
      {
   
          return $this->publicKey;
   
      }
   
      /*
   
       * 服務端加密數據（使用私鑰加密， 客戶端公鑰能夠解密）
   
       */
   
      public function serverEncodeData($data)
   
      {
   
          $encryptData = '';
   
          if (is_array($data)) {
   
              openssl_private_encrypt(json_encode($data, true), $encryptData, $this->privateKey);
   
          } elseif (is_string($data)) {
   
              openssl_private_encrypt($data, $encryptData, $this->privateKey);
   
          }
   
          return base64_encode($encryptData);//加密後的內容一般含有特殊字符，須要編碼轉換下
   
      }
   
      /*
   
       * 客戶端解密數據（使用公鑰解密， 可解私鑰加密數據）
   
       */
   
      public function clientDecodeData($data)
   
      {
   
          $decryptData = '';
   
          if (!is_string($data)) throw new Exception('解密格式應爲字符串格式');
   
          if (!$this->publicKey) throw new Exception('客戶端解密須要提供公鑰');
   
          openssl_public_decrypt(base64_decode($data), $decryptData, $this->publicKey);
   
          return $decryptData;
   
      }
   
      /*
   
       * 客戶端加解數據（使用公鑰加密， 服務端私鑰可解密）
   
       */
   
      public function clientEncodeData($data)
   
      {
   
          $encryptData = '';
   
          if (!$this->publicKey) throw new Exception('客戶端加密須要提供公鑰');
   
          if (is_array($data)) {
   
              openssl_public_encrypt(json_encode($data, true), $encryptData, $this->publicKey);
   
          } else if (is_string($data)) {
   
              openssl_public_encrypt($data, $encryptData, $this->publicKey);
   
          }
   
          return base64_encode($encryptData);//加密後的內容一般含有特殊字符，須要編碼轉換下
   
      }
   
      /*
   
       * 服務端解密數據（使用私鑰解密， 公鑰加密數據私鑰可解）
   
       */
   
      public function serverDecodeData($data)
   
      {
   
          $decryptData = '';
   
          if (!is_string($data)) throw new Exception('解密格式應爲字符串格式');
   
          openssl_private_decrypt(base64_decode($data), $decryptData, $this->privateKey);
   
          return json_decode($decryptData, true);
   
      }
   
   }
   
   // 工具生成的祕鑰 加個開頭和結尾 每行64字符換行
   
   // https://docs.open.alipay.com/58/103242 https://docs.open.alipay.com/291/106097
   
   $rsa = new Rsa('-----BEGIN RSA PRIVATE KEY-----
   
   MIICXAIBAAKBgQDHngAxxMArpym+hgNreSVrF34JOrPo07DicaOQgzErJOlihtgf
   
   EFml8UR+0vPmyLmoXPSYX7VGnOryQmedn5iWoy8cV7MRwZsaIUwNQc2tTHq4EdXi
   
   zuY1w22r04eCjfqYcksIXBedUGJyA7RCOmioqxRKlq4Da0COgq/M3tTcbwIDAQAB
   
   AoGAL3RkX3CCrt4CkoSRc49NUfQ3xkHqW0NYHb0eQVCu867GvOGJp3jflw+QVQYZ
   
   bZfyaxAOJds64RqU0BrxPwud3mYvJEIYmvGGwAelUNY/0DOho9NOlLniwbkBxEoy
   
   wUU6bRwQ8bELbhlPvoT9VoCCtkZ7uP+Ux7bffCrQB7Z+yAECQQDu8cT+x/mbN1vh
   
   +PfcuM6wz5Xorq+pnQaTDbES+ZT2NukIwk1y2RSmULIlXDRxsOTKGBLEedk6HmGB
   
   QM/I8xVvAkEA1d2a5IExncjeadOiYftT79UTOb35GkClf5UQcSyILdH5kzxk6OWv
   
   9LP2V72sah6Dg59bUv8BL19AGAowtD0pAQJBAKMEf4nzlO+4jQ9WdIQ58Ynflj7x
   
   Lxdg8iNRrAVuEZsJS2OWbJB2Wgg99cxXY9BNB0p5shQprXJhV9R/C0Pl1DECQERl
   
   +4PZTeUIuRlfdi+gEdhCbUOqXmDnDAchxYBsnaEJ5qgQSLWzv/KjG8Y0A1BtMeKG
   
   tM52gAqGjBkkKS974AECQHw37eeYnY90prE5cNCnHDWJhk2uAK8yxmAOJezlKs4I
   
   0fKonrujwuJVOMT0Asnia5pQTS93RwmePy9RECRzxak=
   
   -----END RSA PRIVATE KEY-----','-----BEGIN PUBLIC KEY-----
   
   MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDHngAxxMArpym+hgNreSVrF34J
   
   OrPo07DicaOQgzErJOlihtgfEFml8UR+0vPmyLmoXPSYX7VGnOryQmedn5iWoy8c
   
   V7MRwZsaIUwNQc2tTHq4EdXizuY1w22r04eCjfqYcksIXBedUGJyA7RCOmioqxRK
   
   lq4Da0COgq/M3tTcbwIDAQAB
   
   -----END PUBLIC KEY-----');
   
   $data = $rsa->serverEncodeData(['id'=>1,'name'=>'jay']);
   
   //"L1yto67q+LEVcB9gvfYHFqXGZ9irHXuhrxbzuRS71im4dNkVUB4t2BbdpwNux+SsakbV8T+eaTHsl0Im999y03ot/xV2jApzMILZoU+aNoDtZlKjue+gNm+O6uCcycYIeYOt1X8rTmuvmgVd3cmhqlNKegC3NDtBWOumJ9JiYJ8="
   
   $data = $rsa->clientDecodeData($data);//"{"id":1,"name":"jay"}"
   
   $data2 = $rsa->clientEncodeData(['id'=>1,'name'=>'jay']));
   
   //"vbHbTr1v/O10G7rStTVfubcnX+6/oUBWaeB+/IRWP1dacFIxzpzISXCs8yHix3+6MK4h6GZ9P3HWLqYTiyHHGmO9MnPV4vQ0gHBzw0wolvVpfwIEonuulg8dzh/D1Kx10dn7r3HQDLWlhAPmGVHLfGQqUlDE1WNwH6ptdJuVyzc="
   
   $data2 = $rsa->serverDecodeData($data2);//"{"id":1,"name":"jay"}"

    

openssl工具生成私鑰和公鑰，也能夠命令行生成