1     /**
 2      * 拼接需要签名的内容
 3      * Author: Tao.
 4      *
 5      * @param array $data 需签名的字段内容
 6      *
 7      * @return string
 8      */
 9     public static function getSign($data)
10     {
11         foreach ($data as $k => $v) {
12             $Parameters[$k] = $v;
13         }
14         //按字典序排序参数
15         ksort($Parameters);
16         $sign = '';
17         foreach ($Parameters as $k => $v) {
18             $sign .= $k . "=" . $v . "&";
19         }
20         $sign = '&' . rtrim($sign, '&');
21         return $sign;
22     }

 1     /**
 2      * 秘钥加密
 3      * Author: Tao.
 4      *
 5      * @param string $data 之前生成好的需加密内容
 6      * @param $key 私钥证书位置(.pfx文件)
 7      * @param string $pwd 证书密码
 8      *
 9      * @return string
10      */
11     public static function SHA1withRSA($data, $key,$pwd)
12     {
13         openssl_pkcs12_read(file_get_contents($key), $certs, $pwd);
14         if (!$certs) return;
15         $signature = '';
16         openssl_sign($data, $signature, $certs['pkey']);
17         return bin2hex($signature);
18     }

 1     /**
 2      * 获取公钥
 3      * Author: Tao.
 4      *
 5      * @param $path //公钥证书位置 (.cer文件)
 6      *
 7      * @return mixed
 8      * @throws \Exception
 9      */
10     public static function loadCert($path)
11     {
12         $file = file_get_contents($path);
13         if (!$file) {
14             throw new \Exception('loadx509Cert::file_get_contents ERROR');
15         }
16
17         $cert = chunk_split(base64_encode($file), 64, "\n");
18         $cert = "-----BEGIN CERTIFICATE-----\n" . $cert . "-----END CERTIFICATE-----\n";
19
20         $res = openssl_pkey_get_public($cert);
21         $detail = openssl_pkey_get_details($res);
22         openssl_free_key($res);
23
24         if (!$detail) {
25             throw new \Exception('loadX509Cert::openssl_pkey_get_details ERROR');
26         }
27         return $detail['key'];
28     }
29
30     /**
31      * 公钥加密
32      * Author: Tao.
33      *
34      * @param $pubPath  //公钥证书位置 (.cer文件)
35      * @param string $bankCode //银行卡号
36      *
37      * @return string
38      */
39     public static function rsa_encode($bankCode,$pubPath)
40     {
41         $pubkey = self::loadCert($pubPath);
42         $encrypt_data = '';
43         openssl_public_encrypt($bankCode, $encrypt_data, $pubkey);
44         $encrypt_data = base64_encode($encrypt_data);
45         return $encrypt_data;
46     }

 1     /**
 2      * 验证返回的签名是否正确
 3      *
 4      * @param string $data 要验证的签名原文
 5      * @param string $signature 签名内容
 6       *@param $pubPath  公钥证书位置 (.cer文件)
 7      *
 8      * @return bool
 9      */
10     public static function verifyRespondSign($data, $signature,$pubPath)
11     {
12         $keys = self::loadCert($pubPath);
13         $signature = hex2bin($signature);
14         $ok = openssl_verify($data, $signature, $keys);
15         if ($ok == 1) {
16             return true;
17         }
18         return false;
19     }