Boost Asio HTTPS请求提供'；证书验证失败'；错误 我试图通过使用C++应用程序的Boost。Asio在HTTPS连接上读取数据。我正在处理一个类似的问题（），但仍然得到一个“CertificateVerifyFailed”错误

我已经稍微更新了代码——改用谷歌，因为www.mtgox.com网站已经发生了变化，并且给了我关于自签名证书的浏览器警告。我认为谷歌的证书链将不会出现这些问题

我已下载颁发者证书，并通过命令行确认其正常工作：

openssl s_client -showcerts  -CApath ./certs -connect google.com:443

给我：

CONNECTED(00000003)
depth=2 C = US, O = Equifax, OU = Equifax Secure Certificate Authority
verify return:1
depth=1 C = US, O = Google Inc, CN = Google Internet Authority
verify return:1
depth=0 C = US, ST = California, L = Mountain View, O = Google Inc, CN = *.google.com
verify return:1
---
Certificate chain
 0 s:/C=US/ST=California/L=Mountain View/O=Google Inc/CN=*.google.com
   i:/C=US/O=Google Inc/CN=Google Internet Authority
-----BEGIN CERTIFICATE-----
MIIF/DCCBWWgAwIBAgIKHN4TOQAAAAB/azANBgkqhkiG9w0BAQUFADBGMQswCQYD
VQQGEwJVUzETMBEGA1UEChMKR29vZ2xlIEluYzEiMCAGA1UEAxMZR29vZ2xlIElu
dGVybmV0IEF1dGhvcml0eTAeFw0xMzAzMDcxNDI0MDFaFw0xMzA2MDcxOTQzMjda
MGYxCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlhMRYwFAYDVQQHEw1N
b3VudGFpbiBWaWV3MRMwEQYDVQQKEwpHb29nbGUgSW5jMRUwEwYDVQQDFAwqLmdv
b2dsZS5jb20wgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBANVtYuy195QvNel7
trGWR58HJwAZ+ePoaDQgb2tBFllwxpNZDWSAeUi+L2FHDla/L7DEig62yWvR2xgJ
Fg0w9XZkm5uyKIi4olF9ahjWDdlzRJNwYp8cEfReW2d7buBbRIRx7QHywR3FSi9B
uY7BEwIne/Sppz/j8RttVSDXYGNJAgMBAAGjggPPMIIDyzAdBgNVHSUEFjAUBggr
BgEFBQcDAQYIKwYBBQUHAwIwHQYDVR0OBBYEFDeOUXJygXLBA10KGrRYrS7UX19J
MB8GA1UdIwQYMBaAFL/AMOv1QxE+Z7qekfv8atrjaxIkMFsGA1UdHwRUMFIwUKBO
oEyGSmh0dHA6Ly93d3cuZ3N0YXRpYy5jb20vR29vZ2xlSW50ZXJuZXRBdXRob3Jp
dHkvR29vZ2xlSW50ZXJuZXRBdXRob3JpdHkuY3JsMGYGCCsGAQUFBwEBBFowWDBW
BggrBgEFBQcwAoZKaHR0cDovL3d3dy5nc3RhdGljLmNvbS9Hb29nbGVJbnRlcm5l
dEF1dGhvcml0eS9Hb29nbGVJbnRlcm5ldEF1dGhvcml0eS5jcnQwDAYDVR0TAQH/
BAIwADCCApUGA1UdEQSCAowwggKIggwqLmdvb2dsZS5jb22CDSouYW5kcm9pZC5j
b22CFiouYXBwZW5naW5lLmdvb2dsZS5jb22CEiouY2xvdWQuZ29vZ2xlLmNvbYIW
Ki5nb29nbGUtYW5hbHl0aWNzLmNvbYILKi5nb29nbGUuY2GCCyouZ29vZ2xlLmNs
gg4qLmdvb2dsZS5jby5pboIOKi5nb29nbGUuY28uanCCDiouZ29vZ2xlLmNvLnVr
gg8qLmdvb2dsZS5jb20uYXKCDyouZ29vZ2xlLmNvbS5hdYIPKi5nb29nbGUuY29t
LmJygg8qLmdvb2dsZS5jb20uY2+CDyouZ29vZ2xlLmNvbS5teIIPKi5nb29nbGUu
Y29tLnRygg8qLmdvb2dsZS5jb20udm6CCyouZ29vZ2xlLmRlggsqLmdvb2dsZS5l
c4ILKi5nb29nbGUuZnKCCyouZ29vZ2xlLmh1ggsqLmdvb2dsZS5pdIILKi5nb29n
bGUubmyCCyouZ29vZ2xlLnBsggsqLmdvb2dsZS5wdIIPKi5nb29nbGVhcGlzLmNu
ghQqLmdvb2dsZWNvbW1lcmNlLmNvbYINKi5nc3RhdGljLmNvbYIMKi51cmNoaW4u
Y29tghAqLnVybC5nb29nbGUuY29tghYqLnlvdXR1YmUtbm9jb29raWUuY29tgg0q
LnlvdXR1YmUuY29tggsqLnl0aW1nLmNvbYILYW5kcm9pZC5jb22CBGcuY2+CBmdv
by5nbIIUZ29vZ2xlLWFuYWx5dGljcy5jb22CCmdvb2dsZS5jb22CEmdvb2dsZWNv
bW1lcmNlLmNvbYIKdXJjaGluLmNvbYIIeW91dHUuYmWCC3lvdXR1YmUuY29tMA0G
CSqGSIb3DQEBBQUAA4GBAFnvOnn7rF3Tj94qGAPl09lYFYZxoObOYvqQg5H2tEr6
JZk1OEn/743r3yyTllwk8E6zyyerXMzNPXI9dOtkdNwGUcEaWw19eDAWUiZOi7EI
wIRY2VPT5+7BPIwFgcydtyqcDJz39HdNNHtIkOXHzgEnwnFiqJT2cjeX27DWyqwl
-----END CERTIFICATE-----
 1 s:/C=US/O=Google Inc/CN=Google Internet Authority
   i:/C=US/O=Equifax/OU=Equifax Secure Certificate Authority
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
---
Server certificate
subject=/C=US/ST=California/L=Mountain View/O=Google Inc/CN=*.google.com
issuer=/C=US/O=Google Inc/CN=Google Internet Authority
---
No client certificate CA names sent
---
SSL handshake has read 2744 bytes and written 348 bytes
---
New, TLSv1/SSLv3, Cipher is ECDHE-RSA-RC4-SHA
Server public key is 1024 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol  : TLSv1.1
    Cipher    : ECDHE-RSA-RC4-SHA
    Session-ID: A69DDC4E1D33F3D03603AED0CC9F101CC1A49BEE76D61AC0508A780D9E2AF06A
    Session-ID-ctx: 
    Master-Key: 8B08C4A8FB1332EE278F037B115EB4E3E6EF51BCE464B05F8B0652A2773FD34FC2F769B2AB51DCC57CF9844A8B747F97
    Key-Arg   : None
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    TLS session ticket lifetime hint: 100800 (seconds)
    TLS session ticket:
    0000 - 1f 6b 71 a9 3c 1f 83 b0-ad 45 ee 74 5f bb d6 3f   .kq.<....E.t_..?
    0010 - 06 a3 01 3a a6 00 53 da-b2 72 9b 16 d5 5f 54 75   ...:..S..r..._Tu
    0020 - 7e 35 10 1d c8 7e 6e 9e-29 dc f1 67 97 aa 94 77   ~5...~n.)..g...w
    0030 - 81 f5 a4 6c 25 29 61 13-12 6b d3 13 86 40 95 ae   ...l%)a..k...@..
    0040 - d0 6b d9 1f 9e 62 a4 09-68 8a fb 7b 6a b0 34 74   .k...b..h..{j.4t
    0050 - 57 0e 2f 45 d8 e9 9c 10-af 43 dc 83 b7 bd 8f 63   W./E.....C.....c
    0060 - 5e 84 d4 e1 bd 8a 18 55-de 4b a7 58 1e 9d b1 bf   ^......U.K.X....
    0070 - 84 de bb 0b 4a 9b 46 7f-cf 94 8b e3 48 53 54 49   ....J.F.....HSTI
    0080 - 1a 3b f9 41 4b 08 fc ac-b6 09 f0 5b 65 bf e3 cd   .;.AK......[e...
    0090 - 62 7b ad e4                                       b{..

    Start Time: 1363898770
    Timeout   : 300 (sec)
    Verify return code: 0 (ok)

我得到了谷歌主页的html/javascript代码，这正是我所期望的

但是，我的代码仍然失败。（我尽量把它缩短）：

我认为我加载的证书是正确的，但我不确定，也不清楚如何从Boost中获取更多信息，从而进一步阐明问题。我使用的是LinuxMint，所以我不知道是否也会出现SSL 3的Debian问题。广泛搜索和阅读Boost.Asio文档也没有帮助。参考资料很多，但解释不多

---

任何关于我做错了什么或如何找出问题原因的建议都将不胜感激。

从您发布的代码中，我目前只能看到一个或多或少明显的原因

似乎您只需在

verify\u certificate（…）

函数中立即返回

预先验证的
bool。如果这是
false
，该怎么办？如果boost没有预先验证的话，情况会是这样。你的功能应该做验证-你不

尝试返回true。如果有效，请看下面

我可以同意您的代码应该是开箱即用的，因为它是boost示例代码。但可能是您的
上下文。添加验证路径（“/home/mint/workspace/BoostExamples/certs”）搞砸了。。。
或者，目录中的文件没有预期的名称。参考文献：

Each file in the directory must contain a single certificate.
The files must be named using the subject name's hash and an extension of ".0".

OpenSSL
可能会为您完成以下工作：
Boost在引擎盖下使用OpenSSL
SSL\u CTX\u set\u default\u verify\u path（）

来自boost文档：

配置上下文以使用默认目录查找证书颁发机构证书

另见
请将相关代码（最好是a）包含在问题本身中，而不是作为指向另一个网站的链接。是的，问题是与预先验证的
bool有关（我的证书格式正确）。当我返回
true
时，它会工作-谢谢！但是，这意味着从Boost站点复制和粘贴示例时将无法工作。也许我也应该让他们知道，这样他们就可以更新它了？这个例子可能会奏效——它不会为证书添加另一条路径。您是否验证了您的证书文件的名称？我还应该提到，仅返回true意味着所有证书都被接受！连接正常！验证：/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA验证：/C=US/O=Google Inc/CN=Google Internet Authority G2验证：/C=US/ST=California/L=Mountain View/O=Google Inc/CN=www.Google.com发送请求：获取HTTP/1.1主机：Google.com接受编码：*发送请求确定！回复：HTTP/1.0 404未找到内容类型：text/html；它停止了
#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>
#include <boost/bind.hpp>
#include <iostream>
#include <istream>
#include <ostream>
#include <string>


class client
{
public:
  client(boost::asio::io_service& io_service, boost::asio::ssl::context& context, boost::asio::ip::tcp::resolver::iterator endpoint_iterator)
    : socket_(io_service, context)
  {
    socket_.set_verify_mode(boost::asio::ssl::context::verify_peer);
    socket_.set_verify_callback(boost::bind(&client::verify_certificate, this, _1, _2));

    boost::asio::async_connect(socket_.lowest_layer(), endpoint_iterator, boost::bind(&client::handle_connect, this, boost::asio::placeholders::error));
  }

  bool verify_certificate(bool preverified, boost::asio::ssl::verify_context& ctx)
  {
    char subject_name[256];
    X509* cert = X509_STORE_CTX_get_current_cert(ctx.native_handle());
    X509_NAME_oneline(X509_get_subject_name(cert), subject_name, 256);
    std::cout << "Verifying:\n" << subject_name << std::endl;

    return preverified;
  }

  void handle_connect(const boost::system::error_code& error)
  {
    if(!error){
      std::cout << "Connection OK!" << std::endl;
      socket_.async_handshake(boost::asio::ssl::stream_base::client, boost::bind(&client::handle_handshake, this, boost::asio::placeholders::error));
    }else{
      std::cout << "Connect failed: " << error.message() << std::endl;
    }
  }

  void handle_handshake(const boost::system::error_code& error)
  {
    if(!error){
      std::cout << "Sending request: " << std::endl;

      std::stringstream request_;

      request_ << "GET HTTP/1.1\r\n";
      request_ << "Host: google.com\r\n";
      request_ << "Accept-Encoding: *\r\n";
      request_ << "\r\n";

      std::cout << request_.str() << std::endl;

      boost::asio::async_write(socket_, boost::asio::buffer(request_.str()), boost::bind(&client::handle_write, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
    }else{
      std::cout << "Handshake failed: " << error.message() << std::endl;
    }
  }

  void handle_write(const boost::system::error_code& error, size_t bytes_transferred)
  {
    if (!error){
      std::cout << "Sending request OK!" << std::endl;
      boost::asio::async_read(socket_, boost::asio::buffer(reply_, bytes_transferred), boost::bind(&client::handle_read, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
    }else{
      std::cout << "Write failed: " << error.message() << std::endl;
    }
  }

  void handle_read(const boost::system::error_code& error, size_t bytes_transferred)
  {
    if (!error){
      std::cout << "Reply: ";
      std::cout.write(reply_, bytes_transferred);
      std::cout << "\n";
    }else{
      std::cout << "Read failed: " << error.message() << std::endl;
    }
  }

private:
  boost::asio::ssl::stream<boost::asio::ip::tcp::socket> socket_;
  char reply_[0x1 << 16];
};

int main(int argc, char* argv[])
{
  try{
    boost::asio::io_service io_service;

    boost::asio::ip::tcp::resolver resolver(io_service);
    boost::asio::ip::tcp::resolver::query query("www.google.com", "443");
    boost::asio::ip::tcp::resolver::iterator iterator = resolver.resolve(query);
    boost::asio::ssl::context context(boost::asio::ssl::context::sslv23);
    context.add_verify_path("/home/mint/workspace/BoostExamples/certs");
    client c(io_service, context, iterator);
    io_service.run();
  }catch (std::exception& e){
    std::cerr << "Exception: " << e.what() << "\n";
  }

  std::cin.get();
  return 0;
}

Connection OK!
Verifying:
/C=US/O=Google Inc/CN=Google Internet Authority
Handshake failed: certificate verify failed

Each file in the directory must contain a single certificate.
The files must be named using the subject name's hash and an extension of ".0".

int main(int argc, char* argv[]) {
    ...
    boost::asio::ssl::context context(boost::asio::ssl::context::sslv23);
    context.set_default_verify_paths();
    ...
}