Abstract: A method for generating a secure secret key, includes the following steps: A. receiving, in a communication station referred to as the transmitting station, a first secret key by way of a quantum encryption channel via satellite, the first secret key also being transmitted to at least one other communication station by way of the quantum encryption channel; B. generating, in the transmitting station, a second secret key using a trusted random number generator; C. generating an encrypted secret key using the first secret key and the second secret key by the one-time pad method; D. transmitting the encrypted secret key from the transmitting station to the one or more other communication stations.

Abstract: A method for generating a secure secret key, includes the following steps: A. receiving, in a communication station referred to as the transmitting station, a first secret key by way of a quantum encryption channel via satellite, the first secret key also being transmitted to at least one other communication station by way of the quantum encryption channel; B. generating, in the transmitting station, a second secret key using a trusted random number generator; C. generating an encrypted secret key using the first secret key and the second secret key by the one-time pad method; D. transmitting the encrypted secret key from the transmitting station to the one or more other communication stations.