An Intragroup and Intergroup Multiple Secret Images’ Sharing Scheme with Each Participant Holding One Shadow Image

Table 4

Comparisons of the main features.

	Guo et al. [21]	Pakniat et al. [22]	Wu et al. [24]	Meng et al. [25]	Yang et al.[26]	Proposed scheme
Based method	Polynomial		Polynomial	CRT		Polynomial
Number of groups	1	1	2	m	m	2
Number of secrets	1	1	1	1		3
The number of shadows held by a participant	One	One	One	One	Multiple	One
Computational complexity	Easy	Easy	Easy	Easy	Complicated	Easy
Is there a dealer?	Yes	Yes	No	Yes	No	Yes