Token-based access control

1. A computer-implemented method, comprising:

receiving an access request, from a control application on a terminal device, for accessing an object via a Light Fidelity (LiFi) connection which is deployed within a first restrictive area;

loading a token on the terminal device for accessing the object, via a communication channel, if the access request is accepted, wherein the token comprises one or more user privileges based on a unique username and password associated with the received request;

determining the one or more user privileges based on a unique identification associated with a received access request from a control application on the terminal device;

generating the token based on the one or more user privileges;

sending the generated token to the terminal device;

determining a validity of the received token from the terminal device;

controlling an access to the object based on the validity of the received token;

requiring a user to enter a valid password on the terminal device, in response to receiving a further accessing request;

updating the one or more user privileges;

updating the token based on the updated one or more user privileges;

sending the updated token to the terminal device; and

building a further communication channel, based on a second LiFi connection, which is deployed within a second restrictive area, pursuant to the updated one or more user privileges.

2. The method of claim 1 , further comprising:

saving a copy of the generated token.

3. The method of claim 2 , wherein determining the validity of the received token further comprises:

in response to the received token matching the saved copy, identifying the validity as valid; and

in response to a timestamp of the received token being expired, identifying the validity as invalid.

4. The method of claim 2 , further comprising:

in response to the communication channel being disconnected, identifying the validity of the saved copy as invalid.

5. A computer-implemented system for controlling access to an object comprising:

one or more computer devices each having one or more processors and one or more tangible devices; and

a program embodied on at least one of one or more storage devices, the program having a plurality of program instructions for execution by the one or more processors, the program instructions comprising instructions for:

receiving, by the computer, an access request, from a control application on a terminal device, for accessing an object via a Light Fidelity (LiFi) connection which is deployed within a first restrictive area;

loading, by the computer, a token on the terminal device for accessing the object, via a communication channel, if the access request is accepted, wherein the token comprises one or more user privileges based on a unique username and password associated with the received request;

determining, by the computer, the one or more user privileges based on a unique identification associated with a received access request from a control application on the terminal device;

generating, by the computer, the token based on the one or more user privileges;

sending, by the computer, the generated token to the terminal device;

determining, by the computer, a validity of the received token from the terminal device;

controlling, by the computer, an access to the object based on the validity of the received token;

requiring, by the computer, a user to enter a valid password on the terminal device, in response to receiving a further accessing request;

updating, by the computer, the one or more user privileges;

updating, by the computer, the token based on the updated one or more user privileges;

sending, by the computer, the updated token to the terminal device; and

building, by the computer, a further communication channel, based on a second LiFi connection, which is deployed within a second restrictive area, pursuant to the updated one or more user privileges.

6. The computer-implemented system of claim 5 , wherein the program instructions further comprise instructions for:

saving, by the computer, a copy of the generated token.

7. The computer-implemented system of claim 6 , wherein determining a validity of the received token further comprises:

in response to the received token matching the saved copy, identifying, by the computer, the validity as valid; and

in response to a timestamp of the received token being expired, identifying, by the computer, the validity as invalid.

8. The computer-implemented system of claim 6 , wherein the program instructions further comprise instructions for:

in response to the communication channel being disconnected, identifying, by the computer, a validity of the saved copy as invalid.

9. A computer program product for controlling access to an object, comprising a non-transitory tangible storage device having program code embodied therewith, the program code executable by a processor of an electronic device to perform a method, the method comprising:

receiving, by the processor, an access request, from a control application on a terminal device, for accessing an object via a Light Fidelity (LiFi) connection which is deployed within a first restrictive area;

loading, by the processor, a token on the terminal device for accessing the object, via a communication channel, if the access request is accepted, wherein the token comprises one or more user privileges based on a unique username and password associated with the received request;

determining, by the processor, the one or more user privileges based on a unique identification associated with a received access request from a control application on the terminal device;

generating, by the processor, the token based on the one or more user privileges;

sending, by the processor, the generated token to the terminal device;

determining, by the processor, a validity of the received token from the terminal device;

controlling, by the processor, an access to the object based on the validity of the received token;

requiring, by the processor, a user to enter a valid password on the terminal device, in response to receiving a further accessing request;

updating, by the processor, the one or more user privileges;

updating, by the processor, the token based on the updated one or more user privileges;

sending, by the processor, the updated token to the terminal device; and

building, by the processor, a further communication channel, based on a second LiFi connection, which is deployed within a second restrictive area, pursuant to the updated one or more user privileges.

10. The computer program product of claim 9 , wherein the method further comprises:

saving, by the processor, a copy of the generated token.

11. The computer program product of claim 10 , wherein the method further comprises:

in response to the received token matching the saved copy, identifying, by the processor, the validity as valid; and

in response to a timestamp of the received token being expired, identifying, by the processor, the validity as invalid.

12. The computer program product of claim 10 , wherein the method further comprises:

in response to the communication channel being disconnected, identifying, by the processor, a validity of the saved copy as invalid.