A User-Centered Medical Data Sharing Scheme for Privacy-Preserving Machine Learning

Algorithm 5

Data acquisition and model training.

	Input: Private Key ; Ciphertext of the key ; Ciphertext of the data DSi;
	Output: Encrypted keys ; raw data ; Training results of the model ;
(1)	Call the Authorization contract to download
(2)	Decrypted keys:
(3)	Decrypt data:
(4)	Training model with data
(5)	return