Journal of Cloud Computing

Advances, Systems and Applications

Table 3 Communication cost comparison

From: Multi-Recipient encryption with keyword search without pairing for cloud storage

Schemes	Encryption Size/bit	Trapdoor Size/bit
[2]	n(\|G\|+h)=768n	\|G\|=512
[3]	n(\|G\|+h)=768n	\|G\|=512
[9]	2n\|G\|=1024n	\|G_T\|=1024
[13]	n(\|G\|+h)=768n	\|G\|=512
Ours	\(h+(n+1)\|{Z_{q}^{*}}\|=384+128n\)	\|G\|=512

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