Method for Authenticatable Data Transmission

A method for authenticatable data transmission via a one-to-many communication channel from a provider device to a receiver device. A first key pair comprising a first private key and a first public key and supporting bilinear pairings as well as one or more second key pairs are generated and stored. Each second key pair comprises a respective second private key and a respective second public key and supporting bilinear pairings. One or more messages of a first type are obtained and a respective hash is generated for each of them. An authentication message is composed including the generated hashes. The composed authentication message is signed employing the first private key for producing a signed aggregated authentication message, which is distributed to the receiver device.