Secure speech coding communication using hyperchaotic key generators for AMR-WB codec

Classical cryptosystems are not suitable for all situations for they fail to meet some current security requirements due to their small keyspace, which makes them prone to brute-force attacks, as well as their inefficiency in real-time applications due to their considerable time complexity. Recently, secure applications such as hyperchaos-based speech signals became a focal topic for research. Their properties such as unpredictability and...