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Method of Parallel Joint Channel Coding and Cryptography has been analyzed and simulated in this paper. The method is an extension of Soft Input Decryption with feedback, which is used for improvement of channel decoding of secured messages. Parallel Joint Channel Coding and Cryptography results in improved coding gain of channel decoding, which achieves more than 2 dB. Such results are an implication of a combination of receiver components and their interoperability. Channel coding uses redundant information for the recognition or correction of errors that occur during the data transfer over a noisy channel. Cryptography provides secure information transfer: it protects against eavesdropping or manipulation of transmitted information, or masquerading of data origin.
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