Is it possible to add an additional encryption option with a running CA?

Question

Encryption

There is a working root CA (WSserver 12 standart).
Is it possible for him to add an additional encryption option without a full reinstall?


P/S Deploying a new one (with the role of a subordinate CA) didn't work. In the process of joining a subordinate CA to a root CA, the root CA discards the request because it does not understand the encryption method.