Abstract: A method of a secure transaction without physical support of a security identifier and without a token includes recording on a biometric server a biometric profile linked intrinsically to a unique user, the profile being associated with at least one service identifier, recorded on a server distinct from the biometric server, the service identifier being accessible by the user, and during a transaction, acquiring the biometric profile of a user, in transmitting it to the biometric server for comparison with the biometric profiles recorded and in searching for a service associated with the profile and activating it on the service server. The step of recording a new user includes the time of receipt by a central server of a profile, the execution of a step of generating a temporary master random key.

Abstract: A method of a secure transaction without physical support of a security identifier and without a token includes recording on a biometric server a biometric profile linked intrinsically to a unique user, the profile being associated with at least one service identifier, recorded on a server distinct from the biometric server, the service identifier being accessible by the user, and during a transaction, acquiring the biometric profile of a user, in transmitting it to the biometric server for comparison with the biometric profiles recorded and in searching for a service associated with the profile and activating it on the service server. The step of recording a new user includes the time of receipt by a central server of a profile, the execution of a step of generating a temporary master random key.