Efficient Ciphertext-Policy Attribute-Based Encryption Constructions with Outsourced Encryption and Decryption

Table 4

User-side communication cost comparison.

Phase	KeyGen	Encrypt			Decrypt
Link	TA => Bob/Alice	Bob => CSP	ABE Service => Bob	Bob => ABE Service	CSP => Alice	ABE Service => Alice	Alice => ABE Service
CP-ABE-OED1		0	0		0		0
CP-ABE-OED2		0	0		0		0
[12]			0	0	0
[21]			0	0
[23]		0	0		0
[26]				0	0
[27]		0	0		0