These keys are the "insecure" public/private keypair we offer to base box creators for use in their base boxes so that vagrant installations can automatically SSH into the boxes.

There are currently two "insecure" public/private keypairs for Vagrant. One keypair was generated using the older RSA algorithm and the other keypair was generated using the more recent ED25519 algorithm.

The vagrant.pub file includes the public key for both keypairs. It is important for box creators to include both keypairs as versions of Vagrant prior to 2.3.8 will only use the RSA private key.

If you're working with a team or company or with a custom box and you want more secure SSH, you should create your own keypair and configure the private key in the Vagrantfile with config.ssh.private_key_path