System for authenticating a phone number using a phone number certificate

1. An apparatus, comprising:

one or more memory elements operable to store instructions; and

one or more processors operable to execute the instructions, such that the apparatus is configured to:

identify, on an electronic device, a phone number of an incoming caller device;

request, via an out-of-band control channel, a digital certificate for the phone number from the incoming caller device, wherein the digital certificate includes identification information for the phone number;

receive, via the out-of-band control channel, the digital certificate for the phone number from the incoming caller device;

determine whether the digital certificate for the phone number is authentic; and

indicate, on the electronic device, based on a determination that the digital certificate for the phone number is authentic or not authentic, whether the phone number is authentic or not authentic.

2. The apparatus of claim 1 , further configured to:

extract from the digital certificate, based on a determination that the digital certificate for the phone number is authentic, the identification information for the phone number; and

display, on the electronic device, the identification information for the phone number.

3. The apparatus of claim 1 , wherein determining whether the digital certificate for the phone number is authentic is determined by a certificate authority, and the apparatus is further configured to:

send the digital certificate for the phone number to the certificate authority; and

receive, from certificate authority, a determination of whether the digital certificate for the phone number is authentic or not authentic.

4. The apparatus of claim 1 , wherein determining whether the digital certificate for the phone number is authentic is determined prior to the incoming caller device being connected.

5. The apparatus of claim 1 , wherein determining whether the digital certificate for the phone number is authentic is determined at least in part after the incoming caller device is connected.

6. The apparatus of claim 1 , further configured to:

determine whether the phone number is in an authenticated list; and

indicate, on the electronic device, based on a determination that the phone number is in the authenticated list, that the phone number is authentic.

7. The apparatus of claim 1 , further configured to:

store, based on a determination that the digital certificate is authentic, the phone number in an authenticated list.

8. The apparatus of claim 7 , further configured to:

delete, based on a determination that the digital certificate is expired, the phone number from the authenticated list.

9. At least one non-transitory computer-readable medium comprising one or more instructions that when executed by a processor, cause the processor to:

identify, on an electronic device, a phone number of an outgoing call;

request, via an out-of-band control channel, a digital certificate for the phone number from a certificate authority, wherein the digital certificate includes identification information for the phone number;

receive, via the out-of-band control channel, the digital certificate for the phone number from the certificate authority;

extract, from the digital certificate, the identification information for the phone number;

indicate, on the electronic device, the identification information for the phone number; and

request to establish a connection to the phone number.

10. The at least one non-transitory computer-readable medium of claim 9 , further comprising one or more instructions that when executed by a processor, cause the processor to:

determine whether the phone number is in an authenticated list; and

indicate, on the electronic device, based on a determination that the phone number is in the authenticated list, that the phone number is authentic.

11. The at least one non-transitory computer-readable medium of claim 9 , further comprising one or more instructions that when executed by a processor, cause the processor to:

store, based on receiving the digital certificate for the phone number from the certificate authority, the phone number in an authenticated list.

12. The at least one non-transitory computer-readable medium of claim 11 , further comprising one or more instructions that when executed by a processor, cause the processor to:

delete, based on a determination that the digital certificate is expired, the phone number from the authenticated list.

13. The at least one non-transitory computer-readable medium of claim 9 , further comprising one or more instructions that when executed by a processor, cause the processor to:

indicate, on the electronic device, based on not receiving the digital certificate for the phone number from the certificate authority, that the phone number is not authentic.

14. The at least one non-transitory computer-readable medium of claim 13 , further comprising one or more instructions that when executed by a processor, cause the processor to:

indicate using audio or haptic feedback that the phone number is not authentic.

15. The at least one non-transitory computer-readable medium of claim 9 , wherein the identification information for the phone number is indicated on the electronic device prior to the request to establish a connection to the phone number.

16. A method, comprising:

identifying, on an electronic device, a phone number of an incoming caller device;

requesting, via an out-of-band control channel, a digital certificate for the phone number from the incoming caller device, wherein the digital certificate includes identification information for the phone number;

receiving, via the out-of-band control channel, the digital certificate for the phone number from the incoming caller device;

determining whether the digital certificate for the phone number is authentic; and

indicating, on the electronic device, based on a determination that the digital certificate for the phone number is authentic or not authentic, whether the phone number is authentic or not authentic.

17. The method of claim 16 , further comprising:

extracting from the digital certificate, based on a determination that the digital certificate for the phone number is authentic, the identification information for the phone number; and

displaying, on the electronic device, the identification information for the phone number.

18. The method of claim 16 , wherein determining whether the digital certificate for the phone number is authentic is determined by a certificate authority, and further comprising:

sending the digital certificate for the phone number to the certificate authority; and

receiving, from certificate authority, a determination of whether the digital certificate for the phone number is authentic or not authentic.

19. The method of claim 16 , wherein determining whether the digital certificate for the phone number is authentic is determined prior to the incoming caller device being connected.

20. The method of claim 16 , further comprising:

storing, based on a determination that the digital certificate is authentic, the phone number in an authenticated list.