Privacy-Preserving Outsourced Speech Recognition for Smart IoT Devices

Most of the current intelligent Internet of Things (IoT) products take neural network-based speech recognition as the standard human–machine interaction interface. However, the traditional speech recognition frameworks for smart IoT devices always collect and transmit voice information in the form of plaintext, which may cause the disclosure of user privacy. Due to the wide utilization of speech features as biometric authentication, the privacy...