43results about How to "No tampering" patented technology

The invention relates to an information safety algorithm based on an energy information gateway in a smart power grid, ad an introduced safety mechanism is divided into an identity verification process, an encryption information message format and an information communication process according to a connecting flow path. Based on an RSA encryption algorithm, an advanced encryption standard (AES), digital signature and other technologies, the safety mechanism with instruction information transmission confidentiality, integrity and non-repudiation is achieved. By using the respective advantages of the three technologies, the condition that a smart electricity using network transmits sensitive information in a public network is combined, the situations of identify forging, data stealing, repeated attack sending and the like are considered sufficiently, and a bi-directional identity verification and safe instruction transmission mechanism is provided, so that the data attacks are effectively prevented, and traceability of instructions is ensured. A practicable and reliable solution is provided for safe data transmission in the demand response and home automation technology in China.

The invention provides an identity authentication method, identity authentication equipment, a server and an identity authentication-based encryption method and aims to solve the counterfeiting and repudiation prevention problems of identity authentication. The method comprises the following steps of: combining a written signature with a digital signature; acquiring the written signature handwriting of a user through the identity authentication equipment such as a universal serial bus (USB) key; combining the written signature handwriting with transaction data and performing digital signing; and transmitting signature data and the encrypted written signature handwriting to a verification party (such as an Internet bank background system). The signature data is verified by the verification party, so that the written signature handwriting and confidentiality data are not tampered in a transmission process; simultaneously, the truth of the written signature handwriting is verified by the verification party, so that the signature of the written signature handwriting by a user is ensured.

The invention provides a security protocol method in a sensor network. A plurality of SNs in the sensor network are connected to sensor network gate ways SGWs, at least on gate way is connected to a controller UC which is connected to an authentication server AAA. The methods comprise the steps as follows: in an SN equipment authentication process, the gate ways collect requests sent by the plurality of SNs respectively and send the requests to the controller; and after the SN equipment authentication, the controller initiates a state verification process to verify the states of each SN and the sensor network. The invention achieves the SN equipment authentication and the state authentication of the SNs and the sensor network, and provides the complete security protocol.

The invention relates to a cross-department data sharing system and method based on a block chain technology, the system comprises a query server, a sorting node and a plurality of department storage centers, in each department storage center, a data acquisition module is connected with a data processing server, the data processing server is connected with a distributed storage system and the query server, and the distributed storage system is connected with the query server; and the data processing server is used as a peer node of the block chain, and the sorting node performs information transmission with each department storage center through a message channel. Compared with the prior art, through the blockchain technology, the structured data is directly uploaded and stored, it can be guaranteed that the data cannot be tampered, the original hash value of the unstructured data is uploaded and stored, hash value verification is carried out during subsequent data query, tracing can be carried out, the behavior of tampering the data is further limited, and the security and credibility of the data sharing system are improved.

The invention discloses a contract executing method and system based on organism information. The method includes the steps of calculating collected biological information of an organism and a preset security code through a preset encrypting algorithm, obtaining a preset security identification code corresponding to the organism, and storing the preset security identification code into an identification code database; storing contract content and contract trigger conditions related to the preset security identification code in the contract database, wherein the contract content includes a plurality of contract terms; receiving monitoring information sent by a monitor, and executing the contract terms corresponding to the contract trigger conditions when it is judged that the monitoring information meets the contract trigger conditions. By means of the method and system, whether the preset contract trigger conditions are met or not can be automatically judged according to the monitoring information, if yes, the contract terms corresponding to the contract trigger conditions are automatically executed, the fair execution of a contract is ensured, the contract content can not be revealed, and security and convenience are achieved.

The embodiment of the invention provides an Internet data verification method and system, and the method comprises the steps: receiving a data obtaining request sent by a user terminal, generating a predictor thread, and creating a TLS client in the predictor thread; the TLS client requests server side data from a network server corresponding to a uniform resource locator in the data acquisition request according to the uniform resource locator in the data acquisition request; the server side data is sent to an authentication server for authentication, a proof file authenticated by the authentication server is generated, and the proof file is sent to a user terminal; wherein the TLS client operates in a flying place. The embodiment of the invention provides a method. The TLS client runs inthe trusted secure computing environment enclave, so that codes of the TLS client and the symmetric key in the obtained TLS connection can be ensured not to be tampered, the authenticity of data obtained by the TLS client from the Server is ensured, and the data can be provided for any third party to verify the reliability of the evidence file.

The invention discloses a security processing method, a security processing device, a processing chip and network equipment. The method comprises the following steps of: obtaining a security processing way for Internet protocol security (IPsec) data requiring security processing; if authentication processing is determined to be required after encryption processing is performed on the IPsec data according to the security processing way, obtaining an encryption algorithm for the encryption processing of the IPsec data; determining an authentication processing way for the authentication processing of the IPsec data according to the obtained encryption algorithm, wherein the authentication processing way comprises a software authentication processing way and a hardware authentication processing way; performing hardware encryption processing on the IPsec data according to the obtained encryption algorithm; and performing the authentication processing on the hardware-encrypted IPsec data according to the determined authentication processing way. By the technical scheme provided by the invention, the problem of relatively lower processing efficiency in the authentication processing of the IPsec data in the prior art is solved.

The invention provides a method and a system for realizing multi-party key agreement. The method comprises the following steps that: after generating a key parameter, a member A1 generates key negotiation information with member information and sends the key negotiation information to a member A2; the member A2 generates random number calculation, generates key agreement information with the member information and sends the key agreement information to the member A3; continuously, the member Am generates a random number to calculate and obtain a secret key; key agreement information is generated through calculation and the member information and sent to the member Am-1; and in this way, the key negotiation information is sequentially transmitted, and the final member A1 calculates to obtain the key. According to the method, key agreement of multiple members can be effectively realized, a safe elliptic curve is selected, and on the basis of the safe elliptic curve, the security and confidentiality of key parameters in the communication process can be effectively ensured through the difficulty in solving discrete logarithms on the elliptic curve.

The invention discloses an education award teaching and learning assisting system, and relates to a blockchain, and the overall architecture of the system comprises an application layer, a consensus layer, a network layer, a data layer and an information checking terminal. The information checking terminal is respectively connected with the application layer, the consensus layer, the network layerand the data layer; the application layer comprises an intelligent contract module and a privacy protection module; the consensus layer comprises a consensus mechanism module; the network layer comprises a network protocol module and a transaction verification module; the data layer comprises a security algorithm module; the education award teaching and learning assisting system adopts a blockchain technology as a data transmission and distributed storage core service layer. According to the education award teaching and learning assisting system based on the blockchain, accurate docking, accurate management and accurate assistance can be realized. Through big data analysis, an assistant student tracking file is established, and the block chain records the real life condition of the student.

The invention discloses an access control management method and device based on a block chain and access control equipment. When a user requests to open an access control, a face image is not transmitted by using a network, so that the leakage of personal privacy is avoided, the network traffic use of Internet of Things equipment is greatly reduced, the 4G/5G traffic cost is reduced, and the transmission is more efficient; in addition, when the user requests to open the access control, an access control system verifies whether the user is legal or not, meanwhile, the block chain is used for conducting dual verification on the user, the safe passing of the user can be guaranteed, verification and troubleshooting can be conducted on a local library of the access control equipment, and the safety of the whole access control system is effectively improved.