An SKP-ABE Scheme for Secure and Efficient Data Sharing in Cloud Environments

Table 2

Notations.

Symbol	Definition
p, q	Prime order
	Public parameters, master key, AA’s public key
	Data user public/private key pair
PSK	Data user partial secret key (partial decryption key)
FSK	Data user final secret key (ciphertext decryption key)
	User identifier
	Data user certificate
	User attribute data, A set of attribute data
	Access policy or access structure
	Token with keyword w (ciphertext search token)
	Keywords for data owners, keywords for data users
	The ciphertext index value generated based on the keywords
	Ciphertext
	Cryptographic hash function
	Cryptographic hash function