Secure Multi-Keyword Search and Access Control over Electronic Health Records in Wireless Body Area Networks

Table 1

Function comparison.

	Access control	Multi-keyword search	Verify decryption	User trace	User revocation
Yang et al.’s scheme [4]	✓		✓	✓	✓
Zhang et al.’s scheme [5]	✓	✓
Wang et al.’s scheme [22]	✓
Wang et al.’s scheme [29]	✓	✓
SMKS-AC scheme	✓	✓	✓	✓	✓

“✓” represents supported; “” represents not supported.