Privacy-Preserving Task Distribution Mechanism with Cloud-Edge IoT for the Mobile Crowdsensing

Figure 3

Comparisons of time consumption in the publisher/subscriber side. (a) Encryption time cost. (b) Search time cost. (c) Decryption time cost. (d) Trapdoor generation time cost. (e) Ciphertext storage cost. (f) Trapdoor storage cost.

(a)

(b)

(c)

(d)

(e)

(f)