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(Delphi ActiveX) Create CAdES p7m using AWS KMS to Sign in the CloudSee more Signing in the Cloud ExamplesDemonstrates how to create a CAdES p7m, using AWS KMS. The signing of the hash happens in the Cloud on AWS KMS. Everything else regarding the creation of CAdES happens locally within Chilkat. Note: This example requires Chilkat v9.5.0.96 or greater.
uses Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB; ... procedure TForm1.Button1Click(Sender: TObject); var cert: TChilkatCert; success: Integer; jsonAwsKms: TChilkatJsonObject; crypt: TChilkatCrypt2; signedAttrs: TChilkatJsonObject; inputXmlPath: WideString; outputP7mPath: WideString; begin // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Load the certificate used for signing. The certificate's private key is stored in AWS KMS // However, we still need the certificate locally (without private key). cert := TChilkatCert.Create(Self); success := cert.LoadFromFile('qa_data/certs/myCert.cer'); if (success = 0) then begin Memo1.Lines.Add(cert.LastErrorText); Exit; end; // Here's a screenshot showing the key ID of a private key in AWS KMS: // To sign using AWS KMS, // add the following lines of code to specify your AWS authentication credentials, // and the ID of the KMS private key. jsonAwsKms := TChilkatJsonObject.Create(Self); // Set the "service" equal to "aws_kms" to tell Chilkat to use AWS KMS for signing. jsonAwsKms.UpdateString('service','aws_kms'); jsonAwsKms.UpdateString('access_key','ACCESS_KEY'); jsonAwsKms.UpdateString('secret_key','SECRET_KEY'); // Make sure to specify the correct region for your case. jsonAwsKms.UpdateString('region','us-west-2'); // In the above screenshot, our key ID is "187012e8-008f-4fc7-b100-5efe6146dff2". You will use your key ID. jsonAwsKms.UpdateString('key_id','187012e8-008f-4fc7-b100-5efe6146dff2'); success := cert.SetCloudSigner(jsonAwsKms.ControlInterface); crypt := TChilkatCrypt2.Create(Self); success := crypt.SetSigningCert(cert.ControlInterface); if (success = 0) then begin Memo1.Lines.Add(crypt.LastErrorText); Exit; end; // The CadesEnabled property applies to all methods that create PKCS7 signatures. // To create a CAdES-BES signature, set this property equal to true. crypt.CadesEnabled := 1; crypt.HashAlgorithm := 'sha256'; signedAttrs := TChilkatJsonObject.Create(Self); signedAttrs.UpdateInt('contentType',1); signedAttrs.UpdateInt('signingTime',1); signedAttrs.UpdateInt('messageDigest',1); signedAttrs.UpdateInt('signingCertificateV2',1); crypt.SigningAttributes := signedAttrs.Emit(); // You can sign any type of file.. inputXmlPath := 'qa_data/e-Invoice.xml'; outputP7mPath := 'qa_output/signed.p7m'; // Create the CAdES-BES attached signature, which contains the original data. // Chilkat will build the .p7m locally, but will (internally) use ARSS // to do the RSA signing remotely. success := crypt.CreateP7M(inputXmlPath,outputP7mPath); if (success = 0) then begin Memo1.Lines.Add(crypt.LastErrorText); Exit; end; Memo1.Lines.Add('Success.'); end; |
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