77results about How to "Won't steal" patented technology

The embodiment of the invention discloses a reminding method, device and terminal. The method includes the following steps: basic characteristics of a monitored object are obtained through a camera; and if the variation range of the basic characteristics exceeds a set threshold value, sending out reminding. The technical scheme provided by the embodiment of the invention realizes monitoring of user articles in public places, and performs reminding of an abnormal condition.

The invention discloses a secure communication method and device based on identity authentication, and the method and device can achieve the flexible and efficient verification of identity informationof two communication sides through electronic seals of two forced authentication sides under the condition that there is no need to apply for a digital certificate from a CA mechanism, and guaranteesthe safety of communication data. The method comprises the following steps that: a request node and a response node respectively manufacture respective electronic seals; the request node and a response node report fingerprint information in electronic seals of the opposite side; the request node encrypts plaintext data by using a random factor to generate ciphertext data, encrypts the random factor by using a public key of the electronic seals of an opposite side to obtain a communication key, and then packages and sends the ciphertext data, the communication key and the fingerprint information to the response node; and the response node compares the fingerprint information in the file package with the reported fingerprint information, decrypts the encrypted private key of the electronicseals to which the response node belongs after successful comparison, decrypts the communication key through the private key to restore the random factor, and analyzes the ciphertext data to obtain plaintext data.

The invention discloses physical layer security methods based on a non-optimal user cascading scheme in a multilayer heterogeneous network and belongs to the technical field of wireless communication.According to the methods, a multilayer heterogeneous network model in a passive eavesdropping scene is analyzed through description of node distribution density, a base station transmitting power, path loss indexes and a bias factor of each layer. The problem that the optimal base stations are difficult to connect is solved by the provided method based on the non-optimal user cascading scheme. According to the scheme, network nodes are modeled into a homogeneous Poisson point process through utilization of stochastic geometry. On the basis of a stochastic geometry mathematical tool, a physical layer security probability expression of the multilayer cellular heterogeneous network is inferred. Influence of the transmitting powers, security thresholds and eavesdropper density on a system security probability is compared and analyzed according to obtained security probabilities. The method has obvious advantages in the aspect of improving physical layer security of the system. A network coverage probability and average user capacity are improved. Throughput and spectral efficiency of the network are also improved.

The invention discloses a wheat drying device and an operation method thereof. The wheat drying device comprises an airing plate. The top of the airing plate is fixedly connected with a baffle plate.The front end and the rear end of the two sides of the inner cavity of the baffle are fixedly connected with threaded rods through bearings, and the left side of the inner cavity of the baffle plate is in threaded connection with a material turning plate. According to the wheat drying device and the operation method thereof, the airing plate, the baffle plate, the threaded rod, a material turningplate, a belt disc, a belt, a first motor, a yarn net rack, a spring, supporting legs, a supporting rod, a bottom plate, a supporting plate, a crank connecting rod mechanism, a second motor, a drivingbevel gear, a driven bevel gear, a mounting rod, a solar panel, a storage battery, a protection box, a photovoltaic converter, a processor, a storage module and a timer are arranged and matched witheach other to use, the wheat can be quickly aired, and time and labor are saved, so that the airing efficiency is greatly improved; moreover, birds cannot be eaten and cannot be mixed with the silt,so that great convenience is brought to later collecting and assembling.

An image encrypting device according to the present invention generates a finally encrypted image sequentially by converting an image of a specified region in an input image with an encryption key, byembedding information obtained by encrypting the encryption key with a public key pairing with the private key of a transmission destination, and by performing pixel value conversion. Then, the encrypted image is transmitted to the transmission destination as a printed matter or via a network. An image decrypting device according to the present invention converts the encrypted image in the form of print data or electronic data into an image, and inputs the image. Next, the image decrypting device extracts a decryption key (the encryption key) from the image of the encryption region by executing a process reverse to the process of the image encrypting device according to the present invention for the encryption region of the encrypted image converted into the image data. Then, the image decrypting device decrypts the original image of the encrypted region by using the decryption key, and restores the entire encrypted image.

The invention discloses a password authentication method with high security. By employing the mode of combining smart card hardware with a cipher algorithm, the method can be applied to the security mechanism of a series of network services such as finance, online shopping, social activities, and security. According to the method, the combination of a smart card and password authentication is focused, four stages of user registration, login, mutual authentication of a server and a user, and user password change are included, lightweight, high-efficiency and secure cipher protocols and methods such as Hash function, XOR operation, and symmetric keys are mainly applied, the security is high, special security processing of usernames and passwords is performed in an information transmission process, the stolen risk for the usernames and the passwords is reduced, replay attacks and information block attacks can be effectively prevented, and the users can freely change the passwords without the server.

The invention discloses a key management-based access control method suitable for a pay television system, which comprises the following steps of: forming a group by all users of the same video website, dividing the users into different user subsets according to the preferences of the users, wherein television programs subscribed by the users in the same user subset are the same. And the website manager encrypts the television program and the session key, and sends the ciphertext of the program and the ciphertext of the session key to the cloud server and the corresponding user respectively. And the cloud server updates the data storage table according to the data uploaded by the website manager and judges whether the request of the user is legal or not according to the data storage table.Only legal users can obtain the session key and the ciphertext of the television program at the same time, and the plaintext of the television program is further obtained through decryption. According to the invention, the privacy data of the user can be ensured not to be stolen, and the dynamic operation of the user and the service provider on the television program is supported; and computing and communication overheads of the user and the service provider are saved.

The invention relates to a safe input system comprising a computer and a mouse, wherein the computer is provided with a safe input program; the mouse is connected with the computer; the safe input program comprises an interface ejection module, a signal control module and a character output module; the interface ejection module is used for ejecting an input interface after the safe input program is started; the signal control module is used for processing signals which are input into a character display frame of the input interface by the mouse and inputting characters wanted to input into a character input field of the input interface; the character output module is used for outputting all the characters displayed in the character input field to an input window of an application program. A user can use the safe input system in any time according to actual requirements, thereby improving user use convenience; and information input by the safe input system can not be easily stolen by a network hacker, thereby increasing information input safety.

The invention provides a method for setting anomalous password and a confirmation method. An anomalous character set composed of a string of character, number or symbol, is input into a host computer, generates a password serial list and is displayed on a display; the password serial list includes at least one login code and at least one random combination unit composed of character, number or symbol, the login code is hid in the random combination unit and is not easy being stealing.

The invention discloses a TEE-based security proxy re-encryption method, which belongs to the technical field of computer security and cryptography, and specifically comprises the following steps that: two information transmission parties respectively generate asymmetric key pairs, and upload the respective key pairs to a trusted server loaded with a trusted execution environment; an information sender encrypts information by using a public key of the information sender and then sends the information to the trusted server; the trusted server decrypts the information by using the private key ofthe sender, encrypts the information by using the public key of the receiver, and sends the encrypted information to the receiver; after receiving the decrypted information, the receiver decrypts thedecrypted information by using a private key of the receiver. In the method, a trusted server loaded with TEE serves as a proxy. The method has the characteristics of low resource consumption and lowcost.