fast-ca is a minimalistic tool to create a local certificate authority and signed certificates in one simple command. Use fast-ca to ... :

• rapid prototype a public key encryption protected network
• create a production ready secured private network with sane default options
• have your websites in your own network encrypted to prevent password theft
• and many more ...

fast-ca creates private keys with RSA and 4096 bits. The CA's certificate is hashed with SHA-256. Common name and the DNS field are set to the FQDN, making the generated certificated usable in every (modern) browser.

fast-ca requires botan-2 to compile & run.

Install botan-2:

Ubuntu:

$ sudo apt install libbotan-2-dev

Fedora:

$ sudo dnf install botan2-devel

... or use the docker container:

docker run -it -v ${PWD}:/mnt willeio/fast-ca bash -c "cd /mnt && fastca MyHostname" # creates the CA and the cert + key for 'MyHostname' in the current directory

Use cmake to generate the fast-ca executable & install it on your system:

Ubuntu:

$ mkdir build $ cd build $ cmake .. $ make $ sudo make install

Fedora:

$ cmake -S . -B build $ cmake --build build $ cd build $ sudo make install

To create a certificate for a FQDN, just run fast-ca with the FQDN as parameter.

$ ./fastca test.example.com

If you run fast-ca for the first time, a new CA certificate including its corresponding private key is generated prior to generating the client certificate. For the CA private key generation, fast-ca aks for a password to encrypt the private key.

MIT