Reverse engineering done by https://peterkleissner.com/2018/05/27/reverse-engineering-supermicro-ipmi/
La clé de licence (pour mettre à jour le BIOS) de l IPMI de super micro est HMAC-SHA1-96(INPUT: MAC address of BMC, SECRET KEY: 85 44 E3 B4 7E CA 58 F9 58 30 43 F8)
echo -n 'bmc-mac' | xxd -r -p | openssl dgst -sha1 -mac HMAC -macopt hexkey:8544E3B47ECA58F9583043F8 | awk '{print $2}' | cut -c 1-24