concerto

concerto is a lightweight tool for testing purposes that should be included in a developer's toolkit, even more taking into account the app's diverse set of features, its portability, and the lightweight footprint on one's system resources.

First things first, concerto is available for different platforms, such as Windows OS, Linux, and macOS. Moreover, this tool does not have a graphical user interface, meaning it can be accessed and used from within your favorite command line.

On top of this, concerto is fully written in C#, a low-level programming language that makes the tool more likely to integrate well with various Windows systems and architecture models.

It is fully portable and requires no prerequisites to run on your machine. The tool can be added onto different flash drivers, and it can be accessed on the go, swiftly.

Available on NuGet, there is a concerto package, a library that allows you to include in your development environment a tool to generate TLS certificates.

The NuGet library contains two classes called 'CertificateCreator' and 'CertificateFileStore.' These items enable APIs for secure digital certificates creation, as well as saving them to and reading them from a given file system.

The concerto NuGet package is available here.

The application does formidably well in terms of managing digital certificate creation and outputs. What does that mean? Firstly, if you initiate a command for website certificate creation with a PEM file, for example, and there is a missing CA certificate or key, the app automatically creates new items for the current job.

Moreover, all the outputs are saved in the same directory where the app is located. You can create intermediary certificates, password-encrypt the certificate private key, save the certificate and key in a bundle PFX, include the certificate chain to the certificate file, authenticate clients using the certificate, or use Elliptic Curve Key (pairs of public and private keys for encryption/decryption/) instead of RSA.