  In this paper, the secrecy analysis of physical layer when both the main and
wiretap channels undergo $\kappa-\mu$ shadowed fading channel is investigated.
In particular, the average secrecy capacity (ASC), secure outage probability
(SOP), the lower bound of SOP (SOP$^L$), and the probability of strictly
positive secrecy capacity (SPSC) are derived by using the classic Wyner's
wiretap model. Two different scenarios for the fading parameters, i.e., $\mu$
and $m$ which represents the shadowing impact have been studied. These
parameters are chosen first as arbitrary numbers, thus the performance metrics
are expressed in single infinite series with multivariate Meijer $G$-function.
In the second scenario, both the aforementioned fading parameters are assumed
to be integer numbers in order to obtain the derived results in simple exact
closed-form analytic mathematically tractable expressions. The numerical
results of this analysis are verified via Monte Carlo simulations.
