Efficient Attribute-Based Secure Data Sharing with Hidden Policies and Traceability in Mobile Health Networks

Table 1

Comparison of different schemes.

	Enc.	Dec.	Ciphertext length	Assumption
Constant-sized ciphertexts [23]				-DBDH
Hidden policy [25]				DBDH
Traceability [26]				-BDHI
Proposed				-BDHE