Knife bootstrap not working on Fips enabled RockyLinux 8

We are able to SSH normally using the rsa key type , but are not able to proceed running bootstrap command with same rsa key type

knife bootstrap -i /home/cloud-user/.ssh/rsa.pem -U cloud-user -VV --sudo -E _default -N --ssh-verify-host-key always

WARN: [SSH] connection failed, terminating (#<Net::SSH::AuthenticationFailed: Authentication failed for user cloud-user@>)
WARNING: Failed to authenticate cloud-user to - trying password auth

Does chef-knife supports FIPS?
any workaround for this