Zig Requires Chilkat v11.5.0+

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. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // 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).
    const cert = try chilkat.Cert.init();
    defer cert.deinit();
    cert.loadFromFile("qa_data/certs/myCert.cer") catch {
        std.debug.print("{s}\n", .{try cert.getLastErrorText(alloc)});
        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.
    const json_arss = try chilkat.JsonObject.init();
    defer json_arss.deinit();

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

    // 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.
    json_arss.updateString("typeOtpAuth", "demoprod") catch {};

    json_arss.updateString("user", "YOUR_ARSS_USERNAME") catch {};
    json_arss.updateString("userPWD", "YOUR_ARSS_PASSWORD") catch {};

    // The "endpoint" can be specified starting in Chilkat v11.5.0
    json_arss.updateString("endpoint", "https://app1.firma-remota.it/ArubaSignerService/webresources/signerservice") catch {};

    try cert.setCloudSigner(json_arss);

    const crypt = try chilkat.Crypt2.init();
    defer crypt.deinit();

    crypt.setSigningCert(cert) catch {
        std.debug.print("{s}\n", .{try crypt.getLastErrorText(alloc)});
        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.setCadesEnabled(true);

    crypt.setHashAlgorithm("sha256");

    const signed_attrs = try chilkat.JsonObject.init();
    defer signed_attrs.deinit();
    signed_attrs.updateInt("contentType", 1) catch {};
    signed_attrs.updateInt("signingTime", 1) catch {};
    signed_attrs.updateInt("messageDigest", 1) catch {};
    signed_attrs.updateInt("signingCertificateV2", 1) catch {};
    crypt.setSigningAttributes(try signed_attrs.emit(alloc));

    // You can sign any type of file..
    const input_xml_path = "qa_data/e-Invoice.xml";
    const output_p7m_path = "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.
    crypt.createP7M(input_xml_path, output_p7m_path) catch {
        std.debug.print("{s}\n", .{try crypt.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Success.\n", .{});
}