C#

Create CAdES (p7m) Signature using ARSS (Aruba Remote Signing Service)

See more Signing in the Cloud Examples

Demonstrates creating a CAdES (p7m) signature using the Aruba Remote Signing Service. C#

bool success = false;

//  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 on 
//  the Aruba.it server and the signing will happen remotely using the
//  ARSS (Aruba Remote Signing Service).
//  However, we still need the certificate locally (without private key).
Chilkat.Cert cert = new Chilkat.Cert();
success = cert.LoadFromFile("qa_data/certs/myCert.cer");
if (success == false) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

//  To sign using the Aruba Remote Signing Service, 
//  add the following lines of code to specify your authentication credentials,
//  and the ID of the certificate w/ private key on the server to be used.
Chilkat.JsonObject jsonArss = new Chilkat.JsonObject();

//  Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
jsonArss.UpdateString("service","ARSS");
//  Specify the certificate ID, such as "AS0"
//  This certificate should match the certificate loaded in the above code.
jsonArss.UpdateString("certID","YOUR_ARSS_CERT_ID");
jsonArss.UpdateString("otpPwd","YOUR_OTP_PWD");

//  Specifies the OTP authentication environment.
//  
//  Common values are:
//    "demoprod" - Demo/Test environment
//    "prod"     - Production environment
//  
//  This value is sent to the ARSS service and determines how the OTP
//  authentication is validated.  The correct value depends on the type
//  of Aruba account and environment that has been provisioned.
//  
//  If signing fails with an authentication-related error, verify that
//  the typeOtpAuth value matches the environment associated with the
//  ARSS account credentials being used.
jsonArss.UpdateString("typeOtpAuth","demoprod");

jsonArss.UpdateString("user","YOUR_ARSS_USERNAME");
jsonArss.UpdateString("userPWD","YOUR_ARSS_PASSWORD");

//  The "endpoint" can be specified starting in Chilkat v11.5.0
jsonArss.UpdateString("endpoint","https://app1.firma-remota.it/ArubaSignerService/webresources/signerservice");

success = cert.SetCloudSigner(jsonArss);

Chilkat.Crypt2 crypt = new Chilkat.Crypt2();

success = crypt.SetSigningCert(cert);
if (success == false) {
    Debug.WriteLine(crypt.LastErrorText);
    return;
}

//  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 = true;

crypt.HashAlgorithm = "sha256";

Chilkat.JsonObject signedAttrs = new Chilkat.JsonObject();
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..
string inputXmlPath = "qa_data/e-Invoice.xml";
string 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 == false) {
    Debug.WriteLine(crypt.LastErrorText);
    return;
}

Debug.WriteLine("Success.");