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Journal of Sensors
/
2018
/
Article
/
Tab 3
/
Research Article
A Lightweight Privacy Protection User Authentication and Key Agreement Scheme Tailored for the Internet of Things Environment: LightPriAuth
Table 3
Login and authentication phase.
User
Gateway
Sensor
input
and
random
,
get
, timestamp
checks the freshness of
timestamp
checks the freshness of
random
,
random number