Two dimensional code generation and recognition
View Patent ↗The present disclosure describes technologies related to two-dimensional (2D) code generation and recognition. In one implementation, registration information is received from a server for authenticating and registering the server, and the server is registered if the registration information is authenticated. The registration information is then saved. A request from the server for generating a 2D code is received, wherein the request includes information to be encoded to the 2D code. The information to be encoded to the 2D code is digitally signed by generating a digital signature using asymmetrical encryption, and the digitally signed information is sent to the server to be encoded to the 2D code.
1. A computer-implemented method, comprising:
receiving, by a first server, registration information from a second server for authenticating and registering the second server;
registering, by the first server, the second server if the registration information is authenticated;
saving, by the first server, the registration information;
receiving, by the first server, a request from the second server for generating a two-dimensional (2D) code, wherein the request includes information to be encoded to the 2D code;
in response to receiving, by the first server, the request from the second server for generating the 2D code:
determining, by the first server, that the second server has registered at the first server;
digitally signing, by the first server, the information to be encoded to the 2D code by generating a digital signature using asymmetrical encryption; and
sending, by the first server, the digitally signed information to the second server to be encoded to the 2D code by the second server;
decrypting the 2D code after the 2D code is scanned by a user computing device; and
saving a record that the 2D code is scanned, wherein the record includes identity information of the second server that encodes the 2D code.
2. The computer-implemented method of claim 1 , wherein the 2D code is scanned by using an application or software authorized by a server that generates the digital signature.
3. The computer-implemented method of claim 1 , further comprising determining if the second server is registered before digitally sign the information to be encoded to the 2D code.
4. The computer-implemented method of claim 1 , wherein the digital signature is generated using a private key based on the asymmetrical encryption.
5. The computer-implemented method of claim 4 , wherein different private keys are used to generate different digital signatures based on different information to be encoded to the 2D code.
6. The computer-implemented method of claim 4 , wherein the asymmetrical encryption is performed by using a Rivest-Shamir-Adleman (RSA) algorithm.
7. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:
receiving, by a first server, registration information from a second server for authenticating and registering the second server;
registering, by the first server, the second server if the registration information is authenticated;
saving, by the first server, the registration information;
receiving, by the first server, a request from the second server for generating a two-dimensional (2D) code, wherein the request includes information to be encoded to the 2D code;
in response to receiving, by the first server, the request from the second server for generating the 2D code:
determining, by the first server, that the second server has registered at the first server;
digitally signing, by the first server, the information to be encoded to the 2D code by generating a digital signature using asymmetrical encryption; and
sending, by the first server, the digitally signed information to the second server to be encoded to the 2D code by the second server;
decrypting the 2D code after the 2D code is scanned by a user computing device; and
saving a record that the 2D code is scanned, wherein the record includes identity information of the second server that encodes the 2D code.
8. The non-transitory, computer-readable medium of claim 7 , wherein the 2D code is scanned by using an application or software authorized by a server that generates the digital signature.
9. The non-transitory, computer-readable medium of claim 7 , further comprising determining if the second server is registered before digitally sign the information to be encoded to the 2D code.
10. The non-transitory, computer-readable medium of claim 7 , wherein the digital signature is generated using a private key based on the asymmetrical encryption.
11. The non-transitory, computer-readable medium of claim 10 , wherein different private keys are used to generate different digital signatures based on different information to be encoded to the 2D code.
12. The non-transitory, computer-readable medium of claim 10 , wherein the asymmetrical encryption is performed by using a Rivest-Shamir-Adleman (RSA) algorithm.
13. A computer-implemented system, comprising:
one or more computers; and
one or more computer memory devices interoperably coupled with the one or more computers and having tangible, non-transitory, machine-readable media storing one or more instructions that, when executed by the one or more computers, perform one or more operations comprising:
receiving, by a first server, registration information from a second server for authenticating and registering the second server;
registering, by the first server, the second server if the registration information is authenticated;
saving, by the first server, the registration information;
receiving, by the first server, a request from the second server for generating a two-dimensional (2D) code, wherein the request includes information to be encoded to the 2D code;
in response to receiving, by the first server, the request from the second server for generating the 2D code:
determining, by the first server, that the second server has registered at the first server;
digitally signing, by the first server, the information to be encoded to the 2D code by generating a digital signature using asymmetrical encryption; and
sending, by the first server, the digitally signed information to the second server to be encoded to the 2D code by the second server;
decrypting the 2D code after the 2D code is scanned by a user computing device; and
saving a record that the 2D code is scanned, wherein the record includes identity information of the second server that encodes the 2D code.
14. The computer-implemented system of claim 13 , wherein the 2D code is scanned by using an application or software authorized by a server that generates the digital signature.
15. The computer-implemented system of claim 13 , further comprising determining if the second server is registered before digitally sign the information to be encoded to the 2D code.
16. The computer-implemented system of claim 13 , wherein the digital signature is generated using a private key based on the asymmetrical encryption.
17. The computer-implemented system of claim 16 , wherein different private keys are used to generate different digital signatures based on different information to be encoded to the 2D code.