CACert implements SCMAuth interface for using a custom certificate authority.

GitConfig implements SCMAuth interface for using a custom .gitconfig file.

SSHPrivateKey implements SCMAuth interface for using SSH private keys.

UsernamePassword implements SCMAuth interface for using Username and Password credentials.

SCMAuth is an interface implemented by different authentication providers which are responsible for setting up the credentials to be used when accessing private repository.

SCMAuthContext keeps track of variables needed for SCM authentication.