A New Method for Combining the Channel Coding with Polar Coding-Based Encryption

In this article, polar codes that have recently been presented by Arikan, to integrate channel coding and encryption is used. Polar coded bits are divided into two categories. The first batch are the bits that virtual high-capacity channels of the passage that briefly bits of high-capacity are called and the information on it. The second group are bits that are virtual channels with capacity for short passes that "constant bits" are called. In the first proposal of fixed bits as we use encryption key, and on all bits of the plan (data bits and fixed bits) are key. In fact, the plan proposed 8-bit Arikan, we use the 8 key. Then, the proposed method is that it can be applied to the number of key bits can be reduced. The encryption system is effective and desirable that, in addition to the high complexity and lack of correlation between bits, the least it used to be key.