37results about How to "High encryption level" patented technology

The invention discloses a computer video data processing method. According to the computer video data processing method, the originally collected video information is compressed and encoded first to obtain the video data with high compression ratio; and dual encryption is carried out on the video data to be transmitted before the video data is transmitted, therefore, the cracking difficulty of a hacker is improved. In the first level encryption, the results of each unit on a nonlinear shifting register are obtained after performing a certain number of shifts and nonlinear transformations on the elements of the video data to be encrypted, and the first level encrypted output video data is obtained through a reversible transformation; and in the second level encryption, the last one ciphertext block in the generated first level encrypted output video data is used as a first target ciphertext block, the first target ciphertext block is decrypted to obtain the index value of the target ciphertext block, and second level encryption operation is performed on the index value of the first level encrypted output video data.

The embodiments of the invention disclose an information transmission method, wherein the information transmission method is applied to a server and comprises: obtaining the information transmitted from a first terminal, encrypting the transmitted information, and generating a targeted code graph, wherein the transmitted information comprises at least one of the following kinds of information: plaintext information, sensitive information or secrete information and the targeted code graph carries the graphic code information and the digital signature to the graphic code information by a security code generation system's private key or the digital signature to the graphic code information by a first terminal's private key; and returning the targeted code graph to the first terminal so that the first terminal transmits the targeted code graph to at least one corresponding second terminal. The information transmission method of the invention makes the information transmission more secure and more private.

The invention discloses a data transmission method and device, computer equipment and a storage medium, and the method comprises the steps: determining an optimal encryption algorithm and a dynamic encryption key at a current moment according to a preset encryption algorithm table when a server detects that to-be-transmitted data exists; performing word segmentation processing on the to-be-transmitted data to generate a plurality of word groups corresponding to the to-be-transmitted data; generating a Huffman dictionary of the to-be-transmitted data based on the plurality of word groups corresponding to the to-be-transmitted data; compressing and encoding the to-be-transmitted data according to the Huffman dictionary to generate encoding information of the to-be-transmitted data; encrypting the Huffman dictionary of the to-be-transmitted data according to the optimal encryption algorithm and the dynamic encryption key at the current moment to generate an encrypted Huffman dictionary; and sending the coded information of the to-be-transmitted data, the encrypted Huffman dictionary and the dynamic encryption key at the current moment to the client. Therefore, by adopting the embodiment of the invention, the network broadband required to be consumed during data transmission can be reduced.

The invention relates to a packaging box, in particular to a combined stealing-disassembling-preventing packaging box. The packaging box comprises an outer box body defined by a bottom tray and a plurality of outer box plates; an inner box body is arranged inside the outer box body and is defined by a plurality of inner box plates; the inner box plates are in one-to-one correspondence with the outer box plates; a first bearing is fixed to each outer box plate in a penetrating manner and comprises a first bearing inner ring, a first clamping ring located between the corresponding inner box plate and the outer box plate is fixedly arranged on the first bearing inner ring, and a first bulge is arranged on the edge of the first clamping ring; a round groove matched with the corresponding firstclamping ring in shape is formed in each inner box plate, a first annular clamping groove for clamping the corresponding first bulge is formed in the groove bottom of the round groove, and a first clamping opening communicating with the first annular clamping groove and the round groove is formed in the edge of the round groove; the inner box plates are detachably hinged to the bottom tray; and the adjacent inner box plates are connected fixedly. The combined stealing-disassembling-preventing packaging box is provided, so that the probability that the packaging box is subjected to stealing-disassembly and opened without permission during transportation is reduced to a relatively large extent.

The invention discloses an information management system (1), information processors (10), (20), and an information management method. The information management system includes an information processor and an information management device (30) connected through a network (60). When storing information into the information management device, one of the information processors adjusts the encryption level of the information, the information including two or more items having different security levels, according to a predetermined degree of reliability.

The invention relates to a system and a method for realizing electronic bidding and tendering encryption in a VPN, and relates to the field of electronic bidding and tendering, the system comprises atotal server, a bidder client, a bidder client, a bidder evaluator client and the VPN; the bidder client, the bidder client and the bidder evaluator client are connected to the VPN, and the VPN is connected to the total server; the system further comprises an encryption server and a decryption server, the encryption server is connected to the bidder client, the decryption server is connected to the bidder client, and the encryption server is used for generating an encryption key for the bidding file; the decryption server is used for decrypting the encrypted bidding file; and a transmission channel for transmitting a secret key is connected between the encryption server and the decryption server. The data transmission method and device have the effect of improving the safety of the data inthe transmission process.

The invention discloses a method and a device for writing vehicle service information and computing equipment, which are used for improving the safety of the vehicle service information stored in an automobile electronic identifier. The method comprises the steps that vehicle service information needing to be written into an automobile electronic identifier is determined, and the vehicle service information comprises service information corresponding to a handled vehicle service; obtaining an encryption key corresponding to the vehicle service information; encrypting the vehicle service information by using the encryption key to obtain encrypted vehicle service information; and the encrypted vehicle service information is written into an extensible area in the automobile electronic identifier, and the extensible area is a storage area supporting writing and reading in the automobile electronic identifier.

The invention provides an up-conversion photon anti-counterfeiting bar code based on dual-wavelength response and a construction method and application thereof, and belongs to the up-conversion anti-counterfeiting technical field. According to the present invention, a near-infrared laser dual-wavelength is adopted to jointly excite a rare earth doped up-conversion luminescent material, and the transition process of electrons in rare earth ions is regulated and controlled by changing the excitation power of the near-infrared laser, so that different luminescent colors and luminescent intensities are generated; and the luminescent color and the luminescent intensity information of the rare earth doped up-conversion luminescent material are used as the identification codes for coding. Due to fine and flexible adjustment of excitation power, rich spectral information can be obtained; and by constructing a large amount of obtained spectral information into the corresponding up-conversion sub-bar codes, the up-conversion sub-bar codes are randomly combined to obtain the complete up-conversion photon anti-counterfeiting bar codes, so that the complexity of information can be increased, higher flexibility is brought to advanced anti-counterfeiting, the information storage capacity is large, the encryption level is high, and the coding capacity and the anti-counterfeiting level are greatly improved.