A Practical and Efficient Blockchain-Assisted Attribute-Based Encryption Scheme for Access Control and Data Sharing

Table 1

A comparison between our scheme and related schemes.

Scheme	Large universe	Multi-authority	Outsourced decryption	Blockchain	Access structure
NCD + 17 [10]	✓	✕	✓	✕	LSSS
ZZP + 20 [11]	✓	✓	✕	✕	LSSS
WCY21 [12]	✕	✕	✓	✓	Tree
Our scheme	✓	✓	✓	✓	LSSS