SPCABS: Signature-Policy Comparable Attribute-Based Signatures

Table 7

Comparison of master public key generation overhead.

Schemes	Trivial method		Our method		Percentage
	Theoretical	Example	Theoretical	Example
Maji et al. [6]					15.07%
Gu et al. [7]					100%
Chen et al. [11]					100%
Okamoto and Takashima [9]					3.47%
Okamoto and Takashima [22]					3.47%