Hello, Please suggest is it possible or may be planned in the future to allow multiple factors at the same time (a user would choose several of them for a single session):
1) General (non post quantum resistant) elliptical asymmetric SSH key1 in the file system 2) General (non post quantum resistant) elliptical asymmetric SSH key2 in a strong crypto token like Rutoken ECP2 or Nitrokey Pro2 3) FIDO2 token 4) Post quantum cryptography key, may be an algorithm from: https://github.com/open-quantum-safe/liboqs#supported-algorithms Something like: https://github.com/open-quantum-safe/openssh-portable but more modern like post 8.2 and able to choose several private keys at the same time to create(derive) a symmetric session key from all of them. It would be better if SSH would support an unlimited number of configured key pairs at the same time for a single session (require all several key pairs) key generation or at least 5-10 to make different combinations of key storage and key algorithms (like a more hybrid than it is now).
