Table 2.

Parameter definitions for both the prover and issuer in the token generation phase.

Parameter	Parameter definition
(TI): TI ∈ (0, 1)*	The value of the token information field
(PI): PI ∈ (0, 1) *	The value of the prover information field
(AA): (A1, ..., An), TI	Application attributes
UID H	Identifier for the secure hash algorithm
(g0, g1, ..., gn, gt)	Issuer’s public key
(e1, ..., en)	Format of each application attribute
(IP): UIDp, desc(Gp),UID H ,(g0, g1, ..., gn, gt),(e1, ..., en)	Issuer parameters
P = H(IP)	The hash of the (IP)
(DP): gd, xd, hd	Device parameters