Decrypt and re-encrypt Supermicro BMC config backups

smcbmc_backup_crypt.txt

Decrypt

openssl enc -d -des-ede3-cbc -in save_config.bin -out save_config.dec -K f1da33a298120612060792ffaa998811998877445588aabb -iv 0
dd if=save_config.dec bs=4 skip=1 | tar -xzf -
ls preserve_config/
bmc_hostname  hostname_for_dhcp   network      SDRBlock      tag
ddns          ipctrl              ntp          server.pem    timezone
DDNS_CONFIG   lighttpd.conf       OEMPSBlock   service.conf  wsman
ddns.key      lighttpd_port.conf  PSBlock      snmpd.conf
ddns.private  log                 ps.xml       syslog.conf
enSSL.config  MouseMode           resolv.conf  system_elog


Encrypt

tar -czf save_config_new.tar.gz preserve_config
(rhash save_config_new.tar.gz -p "%c" | sed -r 's/(..)(..)(..)(..)/\4\3\2\1/' | xxd -r -ps; cat save_config_new.tar.gz) >save_config_new.dec
openssl enc -e -des-ede3-cbc -in save_config_new.dec -out save_config_new.bin -K f1da33a298120612060792ffaa998811998877445588aabb -iv 0