Creating HTTPS connection with Indy TIdHTTPserver

[davornik 4]

I am trying to connect with web-browser to Indy HTTP server runing on https://127.0.0.1:4567.

 

I have read many tutorials and some of them are interesting, like:
1. https://mikejustin.wordpress.com/2019/06/14/how-to-lets-encrypt-certificates-with-indy-http-server/
2. https://synaptica.info/en/2016/09/21/build-your-own-https-server-with-delphi/

I have created self signed certificates with help of this example tutorial:
https://github.com/glenkleidon/DelphiCertAuth
As a passphrase for testing I used "123456".
After that I have installed newly generated file root_cert.crt in Trusted Root CA in Windows (using "WinKey+R" and certmgr.msc)

 

In my code I have set:

...  
  // create IOHandler for OpenSSL
  IdServerIOHandlerSSLOpenSSL1.SSLOptions.CertFile := 'mycomputerCertificate.pem';
  IdServerIOHandlerSSLOpenSSL1.SSLOptions.KeyFile := 'mycomputerPrivateKey.pem';
  IdServerIOHandlerSSLOpenSSL1.SSLOptions.RootCertFile := 'certificateAuthorityCertificate.pem';
  IdServerIOHandlerSSLOpenSSL1.SSLOptions.Mode := sslmServer;
  IdServerIOHandlerSSLOpenSSL1.SSLOptions.SSLVersions := [sslvTLSv1, sslvTLSv1_1, sslvTLSv1_2];
...
procedure TForm1.IdServerIOHandlerSSLOpenSSL1GetPassword(var Password: string);
begin
  Password := '123456';
end;
...
procedure TForm1.IdHTTPServer1QuerySSLPort(APort: Word; var VUseSSL: Boolean);
// This will not be called when the request is a HTTPS request
// It facilitates the use of the server for testing via HTTP://localhost:8080 (i.e. without SSL)
begin
  VUseSSL := (APort <> 8080);
end;
...
function TForm1.IdServerIOHandlerSSLOpenSSL1VerifyPeer(Certificate: TIdX509;
  AOk: Boolean; ADepth, AError: Integer): Boolean;
begin
  if ADepth = 0 then
    Result := AOk
  else
    Result := True;
end;
...

Unfortunately, when I try to connect to https://127.0.0.1:4567 I get an warning (check image).

 

In application I can see messages and exception raised:
IdServerIOHandlerSSLOpenSSL1StatusInfo(const AMsg: string);
AMsg := SSL status: "before/accept initialization";
AMsg := SSL status: "before/accept initialization";
AMsg := SSL status: "SSLv3 read client hello A";
AMsg := SSL status: "SSLv3 write server hello A";
AMsg := SSL status: "SSLv3 write certificate A";
AMsg := SSL status: "SSLv3 write server done A";
AMsg := SSL status: "SSLv3 flush data";
AMsg := SSL status: "SSLv3 read client certificate A";
AMsg := SSL status: "SSLv3 read client key exchange A";
AMsg := SSL status: "error";
127.0.0.1:55810 Stat Disconnected.

 

IdHTTPServer1Exception(AContext: TIdContext; AException: Exception);
EIdOSSLUnderlyingCryptoError: Error accepting connection with SSL.
error:14094416:SSL routines:ssl3_read_bytes:sslv3 alert certificate unknown

Am I doing something wrong or I am missing something?

Why I can't connect to IP address without warning?

 

Edited November 29, 2022 by davornik

[Remy Lebeau 1255]

As the browser's error message says, your server's certificate doesn't prove that 127.0.0.1 and mycomputer are the same entity, so the browser fails the handshake.  Did you try connecting to https://mycomputer:4567 instead?  The certificate you have is registered to a hostname, so that hostname must be specified in the URL used to access the server.

 

See: Is it possible to have SSL certificate for IP address, not domain name?