Abstract: Authorizing transactions by an authentication provider involves at least one preparatory phase and an authorization phase. The preparatory phase includes registering a user account with several personal devices, each with an authentication application installed. The authorization phase receives knowledge of the transaction; determines the user account related to the transaction; determines at least one personal device registered with the user account related to the transaction; receives a request for details specific to the transaction from at least one personal device; provides the authentication application of the at least one personal device with the requested details specific to the transaction; receives from the authentication application a digitally signed transmission which indicates transaction-specific instructions received by the authentication application; and authorizes or denies the transaction based on the received transaction-specific instructions.

Abstract: An authenticating method including establishing trust between an authentication provider and service provider; establishing trust between the authentication provider and authentication application installed in a terminal. The authentication provider, for each session, receives an access code request and connection information from the terminal; generates and stores the access code; sends the access code to the terminal; receives the access code from the authentication application; indicates verification of the access code to the authentication application and terminal; receives from the authentication application a request to grant access to the terminal; instructs the service provider to grant access; and sends a confirmation of the granted access to the terminal. An authenticated session between the terminal and the service provider is setup for providing services to the terminal.

Abstract: An authenticating method including establishing trust between an authentication provider and service provider; establishing trust between the authentication provider and authentication application installed in a terminal. The authentication provider, for each session, receives an access code request and connection information from the terminal; generates and stores the access code; sends the access code to the terminal; receives the access code from the authentication application; indicates verification of the access code to the authentication application and terminal; receives from the authentication application a request to grant access to the terminal; instructs the service provider to grant access; and sends a confirmation of the granted access to the terminal. An authenticated session between the terminal and the service provider is setup for providing services to the terminal.