Add standalone host PBKDF2-HMAC-SHA256 mkpasswd, board_romfs_mkpasswd.sh,
and promptpasswd.sh with confirm-password support. Integrate ROMFS passwd
generation in Board.mk and CMake. Drop TEA key checks from passwd_keys.mk.
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
Support NUTTX_ROMFS_PASSWD_PASSWORD via update_romfs_password.sh for
configs that enable ROMFS passwd without a defconfig password (sim/login
CI). Enable RANDOMIZE_KEYS in sim/login defconfig. Update mkpasswd.c
header, platform docs, and the mkpasswd_autogen guide.
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
Remove implicit default credentials and add build-time validation.
Add check_passwd_keys.sh and gen_passwd_keys.sh; run key setup via
passwd_keys.mk before config.h is generated. Mirror the same logic in
cmake/nuttx_add_romfs.cmake for CMake builds.
BREAKING CHANGE: Builds with CONFIG_BOARD_ETC_ROMFS_PASSWD_ENABLE=y now
require an explicit admin password and non-default TEA keys. The
Kconfig default password "Administrator" and default TEA keys are no
longer accepted. Fix: run make menuconfig, set Admin password under
Board Selection -> Auto-generate /etc/passwd, enable random TEA keys or
set CONFIG_FSUTILS_PASSWD_KEY1..4 manually, and use NSH login with
Encrypted password file verification.
Signed-off-by: Abhishek Mishra <mishra.abhishek2808@gmail.com>
