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(Delphi DLL) Verify SSL Server CertificateDemonstrates how to connect to an SSL server and verify its SSL certificate. Note: This example requires Chilkat v11.0.0 or greater.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Cert, Socket; ... procedure TForm1.Button1Click(Sender: TObject); var success: Boolean; socket: HCkSocket; ssl: Boolean; maxWaitMillisec: Integer; sslServerHost: PWideChar; sslServerPort: Integer; cert: HCkCert; bExpired: Boolean; bRevoked: Boolean; bSignatureVerified: Boolean; bTrustedRoot: Boolean; begin success := False; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. socket := CkSocket_Create(); ssl := True; maxWaitMillisec := 20000; // The SSL server hostname may be an IP address, a domain name, // or "localhost". sslServerHost := 'www.paypal.com'; sslServerPort := 443; // Connect to the SSL server: success := CkSocket_Connect(socket,sslServerHost,sslServerPort,ssl,maxWaitMillisec); if (success = False) then begin Memo1.Lines.Add(CkSocket__lastErrorText(socket)); Exit; end; cert := CkCert_Create(); success := CkSocket_GetServerCert(socket,cert); if (success <> False) then begin Memo1.Lines.Add('Server Certificate:'); Memo1.Lines.Add('Distinguished Name: ' + CkCert__subjectDN(cert)); Memo1.Lines.Add('Common Name: ' + CkCert__subjectCN(cert)); Memo1.Lines.Add('Issuer Distinguished Name: ' + CkCert__issuerDN(cert)); Memo1.Lines.Add('Issuer Common Name: ' + CkCert__issuerCN(cert)); bExpired := CkCert_getExpired(cert); bRevoked := CkCert_getRevoked(cert); bSignatureVerified := CkCert_getSignatureVerified(cert); bTrustedRoot := CkCert_getTrustedRoot(cert); Memo1.Lines.Add('Expired: ' + IntToStr(Ord(bExpired))); Memo1.Lines.Add('Revoked: ' + IntToStr(Ord(bRevoked))); Memo1.Lines.Add('Signature Verified: ' + IntToStr(Ord(bSignatureVerified))); Memo1.Lines.Add('Trusted Root: ' + IntToStr(Ord(bTrustedRoot))); end; // Close the connection with the server // Wait a max of 20 seconds (20000 millsec) success := CkSocket_Close(socket,20000); CkSocket_Dispose(socket); CkCert_Dispose(cert); end; |
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