#BlockchainAIlawyer A method for communicating streaming data to provide casting content includes the steps of communicating a request to a server via at least one client device to process the streaming data in a first protocol, processing by the server a data file received via first protocol to retrieve at least one data parameter, creating a message based on received data file information and generating a hash of the received data file information by the server includes applying a hash function to electronic data of the data file, allowing verification of a valid client based on decoding hash value, authenticating incoming request of data file and returning response of the authentication to the client device in the first protocol The IoT device includes a viewer database for storing different data sets (PDF, images, html, whiteboard, video) and modules to display them on the connected display device through HDMI streaming. The hash function used is SHA256. A method for securely communicating streaming data for content casting. The method involves sending a request from client devices to a server using a first protocol. The server processes the received data file to retrieve important data parameters. It then creates a message based on the data file information and generates a unique code (hash) from the data file. The server verifies the client's authenticity based on the code, authenticates the incoming data file request, and sends a response to the client. The IoT device obtains the data file through an HDMI output interface and displays it on a connected display device using an HDMI input interface. #StreamingData #ContentCasting #FirstProtocol #ServerCommunication #DataParameterRetrieval #HashFunction #ClientAuthentication #DataVerification #SecureDataProcessing #DataTransmission #ClientDevice #DataIntegrity #DataSecurity #DataExchange #Innovation #Technology #PatentApplication #DigitalCommunication #DataPrivacy #DataProtection #SecureContentCasting Abstract (EN) A method for communicating streaming data to provide casting content includes the steps of communicating a request to a server via at least one client device to process the streaming data in a first protocol, processing by the server a data file received via first protocol to retrieve at least one data parameter, creating a message based on received data file information and generating a hash of the received data file information by the server includes applying a hash function to electronic data of the data f ile, allowing verification of a valid client based on decoding hash value, authenticating incoming request of data file and returning response of the authentication to the client device in the first protocol. (FR) Un procédé de communication de données de diffusion en continu pour fournir un contenu de projection comprend les étapes consistant la communication d'une requête à un serveur par l'intermédiaire d'au moins un dispositif client pour traiter les données de