SEMDA: Secure and Efficient Multidimensional Data Aggregation in Smart Grid without a Trusted Third Party

Table 2

Functional comparison of other schemes.

Scheme	Data confidentiality	No trusted authority	Dynamic users	Multidimensional	Key and blind factor reuse
MSDA [31]	Yes	Yes	Yes	No	Yes
EPMDA-FED [18]	Yes	Yes	No	Yes	No
FPDA [11]	Yes	No	Yes	No	Yes
Our	Yes	Yes	Yes	Yes	Yes