Polar Coding with Chaos and Frozen Bits Operation for Wiretap Channel

A chaos stream cipher embedded polar coding structure with frozen bits operation scheme is presented in this paper. Several solutions are proposed for solving the remaining problem of former encrypted polar coding scheme for symmetric and degraded wiretap channel. In the proposed structure, a chaos stream cipher is embedded for secure encryption. A solution for long key transmission over the wiretap channel is presented. A multi-block chaining structure is employed for achieving the secure and reliable transmission under the strong security criterion. And a frozen bits operation is constructed with the chaining structure to increase the error probability for unauthorized decoding. And our proposed scheme can also achieve an additional secrecy capacity for the symmetric and degraded wiretap channel.