main key,master key /IT-TECH/
[DE] Hauptschlüssel
[EN] main key; master key
[FR] clef principale
master key,safety key /ENG-MECHANICAL/
[DE] Sicherheitsschlüssel
[EN] master key; safety key
[FR] clé de sûreté
key enciphering key,master key /IT-TECH/
[DE] Schlüssel
[EN] key enciphering key; master key
[FR] clé de chiffrement de clés