46results about How to "Prevent deciphering" patented technology

The invention discloses an FPGA-based optical fiber encryption method, comprising the following steps: (1) obtaining plaintext PT; (2) obtaining a key KT of an FPE encryption mode with a Logistic model; (3) encrypting the plaintext PT with the key KT, Obtain ciphertext C; (4) Pipeline accelerated ciphertext C; (5) Convert the bit width of ciphertext C data; (6) Send data using the frame structure customized by Aurora protocol; (7) The receiving end buffers the received data and strips Frame structure; (8) The receiver decodes the ciphertext C to obtain the plaintext PT. The invention effectively guarantees the link security of the communication, avoids the deciphering and eavesdropping of the video stream data; the overall communication rate can reach 6.25Gpbs.

A method for preventing deciphering of user personal information, comprising: inputting personal user information through an energy-saving monitoring switch; performing information security verification on the input personal user information; performing integrity verification on the personal user information after the security verification; Perform anti-deciphering pre-operation on the personal user information subject to integrity verification; perform anti-deciphering operation on the personal user information subject to integrity verification; select the data storage method; or in remote storage. The method can significantly improve the difficulty of deciphering the user's personal information and reduce the probability of being deciphered; and it does not occupy too much space on the carrier where the user's personal information is stored, thereby improving the subsequent storage of the information by the user's personal information operator with proper authority. At the same time, it makes the whole circuit more compact, takes up less physical space, and can effectively reduce the power consumption of the whole system.

The invention relates to a safe password setting and verifying mode. The safe password setting and verifying mode is characterized by comprising the following steps: (A) basic passwords are set by a user and are composed of a plurality of orderly character codes; (B) an encryption principle is set, encryption operation is carried out on the basic passwords according to the encryption principle to form verifying passwords including valid character codes capable of being used for verifying the user identity and / or position information of the valid character codes, and encryption input prompts coincident with the encryption principle are given to the user; (C) composition of the input passwords is appointed, wherein the input passwords comprise valid codes needing character code value verifying and / or character code value position verifying and interference codes which are at least one bit in length and are used for hiding the positions of the valid codes; (D) when character code values of the valid codes in the passwords input by the user at present and / or the character code position information are / is coincident with information included by the verifying passwords, it is judged that the current passwords is correctly input by the user, and verification of the passwords is successful. By means of the safe password setting and verifying mode, the password inputting safety can be greatly improved, and the passwords are effectively prevented from being stolen and decoded.

The present invention provides a wireless communication module, printing consumables and a printer. The wireless communication module is detachably installed on a printer host and / or a processing box of the printing consumables, and is used for wirelessly sending the identification information of the printing consumables To the verification center for legality verification, and receive the legality verification result information fed back by the verification center, and forward the legality verification result information to the printer host, so that the printer host determines whether to execute the printing job according to the legality verification result information. The present invention realizes the method of remote legality verification of printing consumables by the verification center, because the verification work of the present invention is completed by the verification center, and the verification center can combine the latest and most authoritative verification technology to verify the legality of the printing consumables. Carry out verification to prevent illegal production and imitation of printing consumables. At the same time, the wireless communication module of the present invention can be reused, thereby reducing the verification cost of printing consumables.

The invention discloses a network data transmission device and method for a 3d printer. The network data transmission device comprises a background data receiving module, a data-caching module, a gcode instruction issuing module, a 3d printer status data receiving module, a 3d printer status data uploading module and a main control processing module, wherein the background data receiving module is used for receiving data coming from a network background; the data-caching module is used for caching the received data coming from the network background; the gcode instruction issuing module is used for issuing a gcode instruction in the cached data coming from the data-caching module to the 3d printer; the 3d printer status data receiving module is used for receiving printing and operation status data of the 3d printer; the 3d printer status data uploading module is used for uploading the printing and operation status data of the 3d printer to the network background; and the main control processing module is used for conducting real-time monitoring process on the printing and operation status data of the 3d printer and controlling the working state of the 3d printer. The network data transmission device and method for the 3d printer have the advantages that operation is easy, the copyright of the gcode instruction is protected, and meanwhile the state of the printer can be obtained by the network background successfully.