Abstract: An internal support part structure for a plastic tank includes a support rod and end surface components disposed at two ends of the support rod. The support rod is made of a first material. An outer surface of the end surface component is covered by a second material. An outer edge of the end surface component has a regular or irregular shape. The structure resolves a problem that a second material wrapping a first material and connected to an inner wall of a plastic tank may be easily pulled off the inner wall. When a fuel tank is impacted, the support rod of the structure breaks first, to protect the surface of the fuel tank from damage.

Abstract: The invention discloses an error reconciliation method for a Learning With Errors (LWE) public key cryptography. The method includes an encoding algorithm and a decoding algorithm. The input of the encoding algorithm is a binary message vector u?{0,1}k with a length of k, the output is a q-ary vector z?Zqm with a length of m, where Zq={?q/2, . . . , q/2?1}; the input of the decoding algorithm is a q-ary vector w=z+e?Zqm containing errors with a length of m, and the output is a binary vector u?{0,1}k corresponding to z; the error reconciliation method for the LWE public key cryptography provided by the present invention combines a binary linear code with a Gray code to realize the error reconciliation scheme in LWE public key cryptography. The error reconciliation method can be used to solve the problem of error reconciliation in LWE public key cryptography. The scheme of the invention has good fault tolerance and can significantly improve the transmission rate of encrypted information.

Abstract: This application provides a file access right authentication method and an electronic device, and relates to the field of communications technologies, so that right authentication can be performed on an access request for accessing a file in a system. This improves system security of the electronic device and protects user data. The method includes: receiving, by the electronic device, a file access request (501), where the file access request is used to request to access a first file on the electronic device; next, obtaining a first process identifier in the file access request, and determining first fixed identity information corresponding to the first process identifier (502); and finally, matching the first fixed identity information with authorized fixed identity information corresponding to the first file (503), and when the matching succeeds, determining that authentication of the file access request succeeds (505).

Abstract: An internal support part structure for a plastic tank includes a support rod and end surface components disposed at two ends of the support rod. The support rod is made of a first material. An outer surface of the end surface component is covered by a second material. An outer edge of the end surface component has a regular or irregular shape. The structure resolves a problem that a second material wrapping a first material and connected to an inner wall of a plastic tank may be easily pulled off the inner wall. When a fuel tank is impacted, the support rod of the structure breaks first, to protect the surface of the fuel tank from damage.

Abstract: The invention discloses an error reconciliation method for an LWE public key cryptography The method includes an encoding algorithm and a decoding algorithm. The input of the encoding algorithm is a binary message vector u?{0,1}k with a length of k, the output is a q-ary vector z?Zqm with a length of m, where Zq={?q/2, . . . , q/2?1}; the input of the decoding algorithm is a q-ary vector w=z+e?Zqm containing errors with a length of m, and the output is a binary vector u?{0,1}k corresponding to z; the error reconciliation method for the LWE public key cryptography provided by the present invention combines a binary linear code with a Gray code to realize the error reconciliation scheme in LWE public key cryptography. The error reconciliation method includes an encoding algorithm and a decoding algorithm, which can be used to solve the problem of error reconciliation in LWE public key cryptography.

Abstract: A login method, a token sending method, and a device related to the field of communications technologies include that a first terminal sends login request information to an application server of a first application. The login request information includes a login account username and a password for logging in to the application server. The first terminal receives a first token from the application server and that allows login to the application server. The first terminal sends the first token to a second terminal such the second terminal logs in to the application server using the first token.