Table 10.

Symbols of TVHCSS

Symbol	Description
g	The generator of a cyclic group $\mathbb{G}$
e	The bilinear map, e: $\mathbb{G}\times \mathbb{G}\to \mathbb{G}$
${\mathbb{𝔽}}_p$	The finite field with character p
D	The distributor’s ID
S r i	The i-th servers’ IDs
Q	The querier’s ID
VK	The verification key
{pkD,skD}	The D’s key pair
{pki,ski}	The i-th server’s key pair, for i from 1 to n
{pkQskQ}	The insurance company I’s key pair
d i	The i-th plaintext message protected by n servers
$C{M}_{F_i}$	$C{M}_{F_i}=g^{F_i}$
$C{M}_{h_i}$	$C{M}_{h_i}=g^{h_i}$
S a h r e i	The i-th server’s answer-share