openssl ecparam -name prime256v1 > ecdsaparam

openssl req -nodes -new -newkey ec:ecdsaparam -config othersub.cnf -keyout othersubkey.pem -out othersubreq.pem

openssl ca -batch -create_serial -config othercaconf.cnf -days 3650 -in othersubreq.pem -out othersubcert.pem
