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

Algorithm 7

Decrypt result ciphertext.

	Input: Hash Signature ; ciphertext ; Private Key ;
	Output: Training result of the model ;
(1)	Call the Authorization contract to download
(2)	Generate hash value
(3)
(4)
(5)	Decrypt result ciphertext
(6)	return