SPCABS: Signature-Policy Comparable Attribute-Based Signatures

Table 3

Comparison of master public key sizes.

Schemes	Trivial method		Our method		Percentage
	Theoretical	Example	Theoretical	Example
Maji et al. [6]					3.81%
Gu et al. [7]					7.33%
Chen et al. [11]					53.09%
Okamoto and Takashima [9]					4.60%
Okamoto and Takashima [22]					3.47%