-q, --no-check Don't check field/group for validity.\n\
-B, --group-bits Group size for g-prime; key size for ksched;\n\
data size for enc and hash.\n\
--n, --factors=COUNT Number of factors for {exp,mul}-sim.\n\
+-n, --factors=COUNT Number of factors for {exp,mul}-sim;\n\
+ inner iterations for enc and hash.\n\
-i, --intervals=COUNT Number of intervals to run for. [0; forever]\n\
-t, --time=TIME Length of an interval in seconds. [1]\n\
");