A Privacy-Preserving Data Transmission Scheme Based on Oblivious Transfer and Blockchain Technology in the Smart Healthcare

Table 1

Correspondence between symbols and definitions.

Symbols	Definition
	The serial number of data
	The identity of the patients and doctors
	Data with serial number requested by the user
	The employed key of server in OT protocol
	The stored server subkey of proxy in OT protocol
	The hash value of the serial number
	The public-private key pairs of patients
	The public-private key pairs of doctors
	The transform key from patient to doctor
	The attribute sets of all the users
	The set of each attribute of the user
	The tag for each piece of data