Electronic device for managing personal information and operating method thereof

1. An electronic device, comprising:

a communication interface;

a memory; and

at least one processor operatively coupled to the communication interface and the memory, wherein the memory stores instructions executable by the processor to cause the electronic device to:

receive a personal information request from an information requesting device,

receive permission information generated by an information providing device, for allowing access to personal information from the information requesting device, wherein the permission information comprises a token and a certificate in which a search range of personal information and an identifier of the information providing device are signed with a signature key,

obtain access information used by the information requesting device from the information requesting device,

request a first validation of the personal information request from at least one authentication server based on the token and the certificate, and request a second validation of the information requesting device from at least one authentication server based on the access information,

in response to receiving a result indicating the first validation and the second validation are successful:

primarily classify personal information, as associated with the information providing device, based on at least one piece of personal information stored in a registration server, and the identifier of the information providing device; and

secondarily classify the primarily classified personal information, based on the search range;

decrypt the secondarily classified personal information, based on a first encryption key of the information providing device and a second encryption key of the electronic device, and

transmit the decrypted personal information to the information requesting device.

2. The electronic device of claim 1 , wherein the instructions are further executable by the processor to cause the electronic device to:

request the permission information from the information providing device, and

wherein the permission information comprises the token and the certificate in which a time stamp associated with the search range is signed with the signature keys.

3. The electronic device of claim 2 , wherein the received result comprises: a first validation result verifying the token and the certificate, and a second validation result verifying the information requesting device from which the permission information was requested, and

wherein the first validation result and the second validation result are received from the at least one authentication server.

4. The electronic device of claim 1 , wherein the instructions are further executable by the processor to cause the electronic device to:

record the request for validation in the memory.

5. The electronic device of claim 1 , wherein the at least one piece of personal information stored in the registration server is coupled in a blockchain.

6. An operation method of an electronic device, the method comprising:

receiving a personal information request from an information requesting device;

receiving permission information generated by an information providing device, for allowing access to personal information from the information requesting device, wherein the permission information comprises a token and a certificate in which a search range of personal information and an identifier of the information providing device are signed with a signature key;

obtaining access information used by the information requesting device from the information requesting device;

requesting a first validation of the personal information request from at least one authentication server based on the token and the certificate and requesting a second validation of the information requesting device from at least one authentication server; based on the access information;

in response to receiving a result indicating the first validation and the second validation are successful:

primarily classifying personal information, as associated with the information providing device, based on at least one piece of personal information stored in a registration server, and the identifier of the information providing device; and

secondarily classifying the primarily classified personal information, based on the search range;

decrypting the secondarily classified personal information, based on a first encryption key of the information providing device and a second encryption key of the electronic device; and

transmitting the decrypted retrieved personal information to the information requesting device.

7. The method of claim 6 ,

wherein the permission information includes the token and the certificate in which a time stamp associated with the search range is signed with the signature keys.

8. The method of claim 7 , wherein the received result comprises: a first verification result verifying the token and the certificate, and a second validation result verifying the information requesting device from which the permission information was requested, and

wherein the first validation result and the second validation result are received from the at least one authentication server.

9. The method of claim 6 , further comprising:

recording the request for validation in memory.

10. The method of claim 6 , wherein the at least one piece of personal information stored in the registration server is coupled in a blockchain.

11. A personal information providing system, the system comprising:

an information requesting device configured to transmit a personal information request, the request associated with permission information generated by an information providing device;

an electronic device configured to receive a personal information request from an information requesting device, receive permission information generated by an information providing device, for allowing access to personal information from the information requesting device, obtain access information used by the information requesting device from the information requesting device, request a first validation of the personal information request from an authentication server based on a token and a certificate included in the permission information, and request a second validation of the information requesting device from the authentication server based on the access information, in response to receiving a result indicating the first validation and the second validation are successful: primarily classify personal information, as associated with the information providing device, based on at least one piece of personal information stored in a registration server, and an identifier of the information providing device; and secondarily classify the primarily classified personal information, based on an search range, decrypt the secondarily classified personal information, based on a first encryption key of the information providing device and a second encryption key of the electronic device, and transmit the decrypted personal information to the information requesting device,

wherein the permission information comprises the token and the certificate in which the search range of personal information and the identifier of the information providing device are signed with a signature key; and

the authentication server configured to perform a first validation verifying the validity of the token and the certificate, and the second validation verifying the information requesting device that transmitted the permission information, and transmit a validation result to the electronic device.

12. The system of claim 11 ,

wherein the registration server is configured to store at least one piece of personal information.

13. The system of claim 11 , wherein the electronic device is configured to:

record the request for validation in a memory.