76results about How to "Reduce the risk of being leaked" patented technology

The invention is suitable for the field of communication and provides a private information viewing method. The private information viewing method comprises the following steps of: establishing a private space database of the mobile terminal equipment, wherein the private space database comprises private linkmen and private information thereof, access problems of private information and access answers of access problems; judging whether to enter a private space of the mobile terminal equipment; if entering the private space of the mobile terminal equipment, propping out an access problem of private information; receiving an answer of the input problem; judging whether the answer of the input problem is matched with the access answer corresponding to the access problem of the private information; and if so, only displaying the private information of the private linkmen corresponding to the access answer. The invention also provides a private information viewing system based on the mobile terminal equipment. The private information viewing method and system based on the mobile terminal equipment, provided by the invention, can be used for better protecting the private information of the private linkmen of the users.

The invention provides a message data processing method and device, a server and terminal equipment. Based on the method, a server sends Cookie data at least containing a generation rule of a first secret key and a generation rule of a second secret key to the terminal equipment in advance; in this way, the server and the terminal equipment can generate the first secret key and the second secret key locally, interactive transmission of the secret keys is not needed, and the risk that the secret keys are leaked is reduced; moreover, before sending the request message, the terminal equipment encrypts the request message carrying the timestamp by using the first secret key and the second secret key; after receiving the encrypted request message, the server decrypts the encrypted request message by using the first secret key and the second secret key to obtain a timestamp; whether the request message has the security risk or not is detected according to the time information indicated by the timestamp and the receiving time of the encrypted request message, so that the request message with the security risk can be accurately detected with relatively low processing cost, and the data security is protected.

The invention discloses an encryption method, a decryption method, encryption equipment and decryption equipment for a user resource. The encryption method comprises the steps of: acquiring the user resource to be processed, and determining a key index corresponding to secret keys used for encrypting the user resource; determining an encryption key used for encrypting the user resource according to the key index; and utilizing the encryption key to encrypt the user resource to obtain an encryption result. Through determining the key index for the user resource, and determining the encryption key used for encrypting the user resource according to the secret keys corresponding to the key index, the probability that the encryption keys determined by the system for different user resources are different is increased, further the problem that the risk of leakage of user information in an application platform is increased because an encryption method adopted for transmitting user information between application platforms between which a cooperative relationship is established is relatively fixed in the prior art can be effectively avoided, the security of the user resources is effectively improved, and the risk of leakage of the user resources is reduced.

The invention relates to the technical field of digital information security transmission, and particularly relates to an electronic bidding and tendering system and method. The system comprises a server, and the server is used for obtaining bid inviting information; the server is further used for generating public and private key pairs according to the bid inviting information, encrypting privatekey certificates in the public and private key pairs based on a Shamir threshold to obtain a plurality of private key ciphertext, and generating a bidding tool according to the public key certificates in the public and private key pairs; the server is also used for updating the bidding tools according to any private key ciphertext during bidding, and the updated bidding tools are in one-to-one correspondence with the private key ciphertexts; the bidding tool is used for obtaining bidding information, encrypting the bidding information to obtain a bidding ciphertext, and uploading the biddingciphertext and the private key ciphertext to the server; and the server is also used for generating a private key certificate according to the plurality of private key ciphertext based on the Shamir threshold during bid opening, and decrypting the bidding ciphertext according to the private key certificate. By adopting the scheme, the security of the private key certificate can be effectively ensured.

The invention belongs to the technical field of data sharing, and discloses a blockchain-based data sharing system, which comprises: a blockchain module comprising a plurality of mutually matched blockchain nodes and realizing data sharing through the blockchain nodes; an access application module which is used for providing a data access node with permission setting for a user of the sharing system, wherein the user accesses the shared data in the block chain module through the data access node; an encryption authentication module which is used for verifying whether a blockchain node in the blockchain module and a data access node in the access application module are valid or not, deleting invalid blockchain nodes and performing encryption authentication on the valid blockchain nodes; anda data storage module which is used for carrying out distributed storage on the shared data in the blockchain module and the user information in the shared system based on IPFS. In conclusion, on thebasis of the blockchain technology, data sharing is achieved, and the risk that data is tampered can be effectively avoided.

The invention relates to the technical field of computers, in particular to a key generation and management method and a server, which are used for solving the technical problem that a key is easy toleak. The secret key generation method comprises the steps that a corresponding secret key pair is generated at set intervals, and the secret key pair comprises a private key and a public key; and dividing the generated private key into a plurality of private key segments, respectively storing the private key segments into a plurality of second servers, and sending the generated public key to thetarget terminal. The key management method comprises the following steps: storing a corresponding private key segment; receiving a service request which is sent by the target terminal and is encryptedby adopting a public key, and determining a terminal identifier of the target terminal; obtaining private key segments corresponding to the target terminal from other second servers, and splicing theprivate key segments to obtain a complete private key; and performing decryption verification based on the private key. According to the key generation and management method and the server, the safety of the user key information is improved.

The invention relates to a decentralized electronic academic certificate checking method and system, belongs to the technical field of electronic academic certificate acquisition, and solves the problem of electronic academic certificate checking. The method comprises the following steps: acquiring authorization for checking an electronic academic certificate of a student from a student terminal;requesting electronic academic certificate plaintext data from a school electronic academic certificate service platform; receiving electronic academic certificate plaintext data sent in a point-to-point manner after being authorized and verified by the school electronic academic certificate service platform; sending a request for checking the digital fingerprint of the electronic academic certificate on the block chain to an electronic academic certificate alliance block chain, and obtaining the digital fingerprint of the electronic academic certificate on the block chain after authorizationverification; and checking the authenticity of the plaintext data of the electronic academic certificate according to the digital fingerprint on the blockchain. According to the invention, decentralization is realized, an application mode of a traditional centralized educational background authentication platform based on data collection is changed, the risk of electronic academic certificate plaintext data uploading is solved, and the security is improved.

The present application provides an access control method, a device and a server. The method includes: receiving an access request; determining the IP address of the sending end of sending the access request; based on the IP address, obtaining the information of an open port of the sending end; if it is determined that the sending end is a proxy server based on the port information, denying the access request. The method, device and server can reduce the risk of data leaking of the server and improve the data safety.

The invention relates to a decentralized electronic education background management system and method, and belongs to the technical field of electronic education background certificate acquisition, solving the problems of electronic education background certificate application and inspection. The decentralized electronic education background management system comprises an electronic education background alliance block chain and a client, wherein the electronic education background alliance block chain processes the electronic education background certificate application and check request and performs uplink storage on the electronic education background application data; and the client establishes connection with the electronic education background alliance block chain, initiates an electronic educational background application request to the electronic educational background alliance block chain, and acquires electronic educational background plaintext data from school block chain nodes in the electronic education background alliance block chain in a point-to-point manner, or initiates an electronic education background check request to the electronic education background allianceblock chain, and judges the authenticity of the electronic education background. According to the decentralized electronic education background management system, decentralization is realized, and anapplication mode of a traditional centralized education background authentication platform based on data collection is changed, so that the risk of data centralization is solved, and the security isimproved.