Indy TCP客户端服务器不能与OpenSSL一起使用

Question

在C ++ Builder 10.3.1中，我使用Indy TCP客户端 - 服务器组件（TIdTCPClient和TIdTCPServer）来创建与OpenSSL进行加密通信的示例。我正在使用此示例代码：

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    C1->Connect();
    C1->Socket->Write(4);
    int res = C1->Socket->ReadInt32();
    C1->Disconnect();
    ShowMessage(res);
}

void __fastcall TForm1::S1Execute(TIdContext *AContext)
{
    int x = AContext->Connection->Socket->ReadInt32();
    AContext->Connection->Socket->Write(x * x);
    AContext->Connection->Disconnect();
}

没有OpenSSL一切正常，但在添加IdSSLIOHandlerSocketOpenSSL1和IdServerIOHandlerSSLOpenSSL1组件并将它们分配给TCP客户端 - 服务器组件（IOHandler属性）后，我收到错误“无法加载SSL库”。在那种情况下，我使用了来自https://indy.fulgan.com/SSL/的OpenSSL 1.0.2二进制文件（ssleay32.dll和libeay32.dll）。

但是，我设法找到了成功加载的旧OpenSSL库。不过，我收到以下错误：

连接SSL时出错。观察到EOF违反了协议。

如何使这项工作？

编辑：在客户端和服务器端将PassThrough设置为false后，我得到：

错误：14094410：SSL例程：SSL3_READ_BYTES：sslv3警报握手失败

编辑：这是我的表格的完整代码和DFM：

Unit1.cpp

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
    IdSSLIOHandlerSocketOpenSSL1->PassThrough = false;
    C1->Connect();
    C1->Socket->Write(5);
    int res = C1->Socket->ReadInt32();
    C1->Disconnect();
    ShowMessage(res);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::S1Execute(TIdContext *AContext)
{
    int x = AContext->Connection->Socket->ReadInt32();
    AContext->Connection->Socket->Write(x * x);
    AContext->Connection->Disconnect();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::S1Connect(TIdContext *AContext)
{
    static_cast<TIdSSLIOHandlerSocketOpenSSL*>(AContext->Connection->Socket)->PassThrough = false;
}
//---------------------------------------------------------------------------

Unit1.h

//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
#include <IdBaseComponent.hpp>
#include <IdComponent.hpp>
#include <IdCustomTCPServer.hpp>
#include <IdIOHandler.hpp>
#include <IdIOHandlerSocket.hpp>
#include <IdIOHandlerStack.hpp>
#include <IdServerIOHandler.hpp>
#include <IdSSL.hpp>
#include <IdSSLOpenSSL.hpp>
#include <IdTCPClient.hpp>
#include <IdTCPConnection.hpp>
#include <IdTCPServer.hpp>
#include <IdContext.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:    // IDE-managed Components
    TIdTCPClient *C1;
    TIdTCPServer *S1;
    TIdServerIOHandlerSSLOpenSSL *IdServerIOHandlerSSLOpenSSL1;
    TIdSSLIOHandlerSocketOpenSSL *IdSSLIOHandlerSocketOpenSSL1;
    TButton *Button1;
    void __fastcall Button1Click(TObject *Sender);
    void __fastcall S1Execute(TIdContext *AContext);
    void __fastcall S1Connect(TIdContext *AContext);
private:    // User declarations
public:     // User declarations
    __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

Unit1.dfm

object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 299
  ClientWidth = 635
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object Button1: TButton
    Left = 24
    Top = 208
    Width = 75
    Height = 25
    Caption = 'Button1'
    TabOrder = 0
    OnClick = Button1Click
  end
  object C1: TIdTCPClient
    IOHandler = IdSSLIOHandlerSocketOpenSSL1
    ConnectTimeout = 0
    Host = '127.0.0.1'
    IPVersion = Id_IPv4
    Port = 5577
    ReadTimeout = -1
    Left = 168
    Top = 96
  end
  object S1: TIdTCPServer
    Active = True
    Bindings = <
      item
        IP = '0.0.0.0'
        Port = 5577
      end>
    DefaultPort = 0
    IOHandler = IdServerIOHandlerSSLOpenSSL1
    OnConnect = S1Connect
    OnExecute = S1Execute
    Left = 240
    Top = 96
  end
  object IdServerIOHandlerSSLOpenSSL1: TIdServerIOHandlerSSLOpenSSL
    SSLOptions.Mode = sslmUnassigned
    SSLOptions.VerifyMode = []
    SSLOptions.VerifyDepth = 0
    Left = 464
    Top = 40
  end
  object IdSSLIOHandlerSocketOpenSSL1: TIdSSLIOHandlerSocketOpenSSL
    Destination = '127.0.0.1:5577'
    Host = '127.0.0.1'
    MaxLineAction = maException
    Port = 5577
    DefaultPort = 0
    SSLOptions.Mode = sslmUnassigned
    SSLOptions.VerifyMode = []
    SSLOptions.VerifyDepth = 0
    Left = 320
    Top = 184
  end
end