Zig Requires Chilkat v11.7.0+

Authenticode Sign a PowerShell Script (.ps1, .psm1, .psd1)

See more Code Signing Examples

Demonstrates how to Authenticode sign a PowerShell script. PowerShell scripts (.ps1), modules (.psm1) and data files (.psd1) can be signed starting in Chilkat v11.7.0. The signature is appended to the file as a comment block, and the file keeps its text encoding. Zig

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

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

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // Signing PowerShell files requires Chilkat v11.7.0 or later.
    // The same code signs a script (.ps1), a module (.psm1), or a data file (.psd1).

    // Load the code signing certificate.  It must have access to its private key.
    const cert = try chilkat.Cert.init();
    defer cert.deinit();
    cert.loadPfxFile("C:/someDir/myCodeSigningCert.pfx", "pfx password") catch {
        std.debug.print("{s}\n", .{try cert.getLastErrorText(alloc)});
        return;
    };

    // Sign with SHA256, and ask a timestamp authority for a timestamp.  A timestamp lets the
    // signature continue to validate after the code signing certificate has expired.
    //
    // {
    //   "hashAlg": "sha256",
    //   "timestampToken": {
    //     "enabled": true,
    //     "tsaUrl": "http://timestamp.digicert.com",
    //     "requestTsaCert": true,
    //     "hashAlg": "sha256"
    //   }
    // }
    const json = try chilkat.JsonObject.init();
    defer json.deinit();
    json.updateString("hashAlg", "sha256") catch {};
    json.updateBool("timestampToken.enabled", true) catch {};
    json.updateString("timestampToken.tsaUrl", "http://timestamp.digicert.com") catch {};
    json.updateBool("timestampToken.requestTsaCert", true) catch {};
    json.updateString("timestampToken.hashAlg", "sha256") catch {};

    const script_path = "C:/someDir/Deploy.ps1";

    const signer = try chilkat.CodeSign.init();
    defer signer.deinit();

    // The script is modified in place.  The signature is appended to the end of the file as a comment block:
    //
    //   # SIG # Begin signature block
    //   # MIIoKgYJKoZIhvcNAQcCoIIoGzCCKBcCAQExDzANBglghkgBZQMEAgEFADB5Bgor
    //   # ...
    //   # SIG # End signature block
    //
    // The text encoding of the file (UTF-8, UTF-8 with BOM, or UTF-16) is kept.
    // If the script is already signed, the new signature block replaces the existing one.
    signer.addSignature(script_path, cert, json) catch {
        std.debug.print("{s}\n", .{try signer.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Signed the PowerShell script.\n", .{});

    // Verify the signature that was just added.
    // Any change made to the script after it is signed, even to a comment, invalidates the signature.
    const sig_info = try chilkat.JsonObject.init();
    defer sig_info.deinit();
    signer.verifySignature(script_path, sig_info) catch {
        std.debug.print("{s}\n", .{try signer.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("The signature is valid.\n", .{});
}