(Delphi DLL) List Microsoft Storage Providers

Gets the Microsoft CNG and legacy CryptoAPI storage providers that exist on the Windows system.

Important: This example requires Chilkat v9.5.0.83 or greater.

Chilkat for Delphi Downloads Chilkat non-ActiveX DLL for Delphi Chilkat ActiveX DLL for Delphi * The examples here use the non-ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, KeyContainer, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
keyCon: HCkKeyContainer;
json: HCkJsonObject;
success: Boolean;
name: PWideChar;
i: Integer;
numStorageContainers: Integer;

begin
// This example requires Chilkat v9.5.0.83 or greater.

keyCon := CkKeyContainer_Create();
json := CkJsonObject_Create();
CkJsonObject_putEmitCompact(json,False);

success := CkKeyContainer_GetStorageProviders(keyCon,json);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkKeyContainer__lastErrorText(keyCon));
    Exit;
  end;

Memo1.Lines.Add(CkJsonObject__emit(json));

// Sample JSON returned by GetStorageProviders

// {
//   "cng": [
//     "Microsoft Software Key Storage Provider",
//     "Microsoft Passport Key Storage Provider",
//     "Microsoft Platform Crypto Provider",
//     "Microsoft Smart Card Key Storage Provider"
//   ],
//   "legacy": [
//     "Microsoft Base Cryptographic Provider v1.0",
//     "Microsoft Base DSS and Diffie-Hellman Cryptographic Provider",
//     "Microsoft Base DSS Cryptographic Provider",
//     "Microsoft Base Smart Card Crypto Provider",
//     "Microsoft DH SChannel Cryptographic Provider",
//     "Microsoft Enhanced Cryptographic Provider v1.0",
//     "Microsoft Enhanced DSS and Diffie-Hellman Cryptographic Provider",
//     "Microsoft Enhanced RSA and AES Cryptographic Provider",
//     "Microsoft RSA SChannel Cryptographic Provider",
//     "Microsoft Strong Cryptographic Provider"
//   ]
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

// Iterate over the CNG storage containers
i := 0;
numStorageContainers := CkJsonObject_SizeOfArray(json,'cng');
while i < numStorageContainers do
  begin
    CkJsonObject_putI(json,i);
    name := CkJsonObject__stringOf(json,'cng[i]');
    Memo1.Lines.Add(name);
    i := i + 1;
  end;

Memo1.Lines.Add('--');

// Iterate over the legacy CryptoAPI Cryptographic Storage Providers
i := 0;
numStorageContainers := CkJsonObject_SizeOfArray(json,'legacy');
while i < numStorageContainers do
  begin
    CkJsonObject_putI(json,i);
    name := CkJsonObject__stringOf(json,'legacy[i]');
    Memo1.Lines.Add(name);
    i := i + 1;
  end;

CkKeyContainer_Dispose(keyCon);
CkJsonObject_Dispose(json);

end;