Authenticated Blind Issuing of Symmetric Keys for Mobile Access Control System without Trusted Parties

Table 5

Protocol goals of other scenarios.

Status	Key grade	Issued-key grade	Level
Administrator	ℳ𝒦	𝒮𝒦, 𝒫𝒦, 𝒰𝒦	3
Super user	𝒮𝒦	𝒫𝒦, 𝒰𝒦	2
Power user	𝒫𝒦	𝒰𝒦	1
Normal user	𝒰𝒦	None	0