/usr/local/bin/dnssec-keygen -a HMAC-MD5 -b 128 -n USER rndc
$B$H
Krndc.+157+XXX.key
Krndc.+157+XXX.private
$B$NFs$D$N%U%!%$%k$,=PMh$^$9!#$3$N!"(BKrndc.+157+XXX.private$B%U%!%$%k$NCf$O!"(B
Private-key-format: v1.2
Algorithm: 157 (HMAC_MD5)
Key: rIk/ASjdhuBuc/D8idJPA== <-- $B$3$3$,8GM-$N(BKey$B$G$9!#(B
$B$NMM$K$J$C$F$$$^$9$N$G!"$3$N(BKey$B$NItJ,$r;H$$$^$9!#(B
$BJ?@.(B13$BG/(B4$B7n(B12$BF|(B