41 results about "Code book" patented technology

The invention belongs to the technical field of quantum computing, and discloses a parallelization method for quantum homomorphic encryption, which is suitable for a combination scheme based on a quantum one-time password book and classical fully homomorphic encryption. According to the method, modeling is carried out on a dependency relationship of a non-Clifford gate by constructing a directed acyclic graph, and classic homomorphic calculation time required by key updating of each node is estimated for each node. On this basis, the gates on each quantum line are divided into a plurality of intervals, each interval is restrained to contain at most one non-Clifford gate, and the gates in the same interval of different quantum lines have no dependency relationship. By optimizing interval division, the overall execution time of the system is minimized on the premise of meeting dependency constraints. And finally, the circuit performs serial execution according to intervals, and each quantum line in the intervals performs parallel operation, so that joint optimization of a non-Clifford gate sequence, quantum one-time password book key updating complexity and a classical fully homomorphic encryption bootstrap round in the quantum homomorphic encryption evaluation process is realized, and the evaluation efficiency is effectively improved.

The application discloses a data encryption retrieval method and device, equipment, storage medium and computer program product, and aims at solving the problems that when traditional data encryption scheme is used to encrypt and retrieve address data of 100 million levels, ciphertext expansion is easy to occur, storage cost is increased, and retrieval efficiency for encrypted data is low. The method comprises the following steps: generating a password book corresponding to a preset processing period according to obtained to-be-encrypted data in the preset processing period; performing word segmentation processing on the to-be-encrypted data to determine a hierarchical structure corresponding to the to-be-encrypted data; performing encryption processing on the to-be-encrypted data according to the password book and the hierarchical structure to obtain ciphertext data; writing the ciphertext data into a retrieval database to construct a ciphertext index; performing matching retrieval in the retrieval database according to a received retrieval request to obtain a ciphertext retrieval result; and decrypting the ciphertext retrieval result to obtain a plaintext retrieval result.

The application discloses a coding generation method and device, which compares a first-layer initial coding of training data with a first standard coding in a preset coding password book, determines a first target coding corresponding to a first coding with the highest similarity to the first-layer initial coding in the coding password book, determines a first-layer target coding based on the first target coding, takes the first-layer target coding as a current-layer target coding, takes a residual error between a current-layer initial coding and the current-layer target coding as a current-layer coding deviation, and determines an Nth-layer target coding. The scheme can provide more abundant data information.

The application discloses a QR code encryption and decryption method and system based on chaos theory and an AES algorithm, relates to the encryption and decryption technical field of QR codes, and comprises an encryption process and a decryption process; the encryption process comprises the following steps: firstly, chaotic sequences generated by improved Logistic mapping and Chebyshev mapping are subjected to XOR to obtain a composite chaotic sequence, the composite chaotic sequence is used as an initial key of AES grouping, and then ciphertext is obtained through AES encryption. Grouping initial keys are dynamically generated, a newly generated key is used for encrypting one group of plaintext data, the keys are completely independent, and therefore, one-time password is realized. Then, the AES algorithm is improved, plaintext information is first encrypted, then secondary encryption is performed on the plaintext information in a Base64 mode, final ciphertext information is subjected to QR code standard coding, and an encrypted QR code is generated. Through the mode of increasing encryption processing, the application effectively reduces information leakage or information tampering problems caused by QR codes.

A multi-party password book distribution method based on secret sharing, a sender uploads a password book to an interstellar file system through public key encryption, adopts secret sharing to secret split information obtained by splicing a public key and a Hash of an expected receiver, a receiver obtains a secret share through biological feature recognition technology, and obtains a sender public key through a judgment function to download an original password book from the interstellar file system. According to experimental results and security analysis, the scheme can guarantee high time efficiency and resist impersonation attacks, and guarantee the safe transmission of the password book. The present application solves the security problem of password book distribution by adopting a shamir threshold scheme, changes the threshold for safe password book distribution, dynamically solves the entry and exit of receivers, solves the problem that original covert communication can only perform one-to-one communication, and realizes one-to-many communication.

The invention relates to a root key generation method and an intelligent security system, and relates to the field of intelligent security systems.The root key generation method comprises the steps that S1, a preset number of password book blocks are obtained, the password book blocks are converted into byte abstracts, and a sequence result is determined; s2, after determining a sequence result, converting a sub-block corresponding to the sequence result into a block hash value; s3, based on the common operation base point, converting the block hash value into a group point, and then converting the group point into an aggregation point; and S4, converting the aggregation point into a byte string, and performing encryption operation to generate a root key. The core of the intelligent secrecy system is security, and the security performance of the existing method has defects, so that the scheme provided by the invention not only can effectively avoid cracking by an attacker, but also can ensure the unpredictability of the password book, thereby remarkably improving the security performance of the system.

The application provides a password generation method, device and equipment, and relates to the field of data processing. The password generation method comprises the following steps: obtaining preset input data, wherein the preset input data comprises a prompt word, and the prompt word comprises a Chinese character string; identifying whether the Chinese character string contains emotional segmentation words according to a preset emotion recognition model; if the Chinese character string contains emotional segmentation words, replacing the emotional segmentation words with corresponding characters; converting the characters in the Chinese character string except the emotional segmentation words into letters, and combining the corresponding characters of the emotional segmentation words to form a final password. According to the method, the final password is generated by converting the text, i.e. the prompt word, and the final password is a combination of characters and letters, so the security coefficient is high. Since there is a conversion relationship between the characters, the characters in the final password are not related to each other due to the complexity of the final password.

An apparatus for transmitting channel state information report, configured in a terminal equipment, includes: a receiver configured to receive a channel state information reporting configuration, wherein M reference signal resources being associated with the channel state information reporting configuration, the channel state information reporting configuration at least including port information and / or power information and / or codebook information of the M reference signal resources; a transmitter configured to transmit a channel state information report according to the channel state information reporting configuration; and wherein the channel state information report at least includes M pieces of channel state information, one of the M pieces of channel state information being associated with one of the M reference signal resources; wherein the port information is for antenna ports or reference signal ports, and the code book information is a codebook type parameter being expected to be set to type 1.

The invention relates to a pointer type coded lock luggage and a pointer type coded lock, which can be applied to coded locks on products such as luggage, room doors, safe boxes and the like, and adopts the technical scheme that two or more pointers are matched with a dial plate, and the plurality of pointers point to the combination of scale marks and / or symbol marks of the dial plate to display passwords; the method has the beneficial effects that the plurality of pointers are matched with the dial plate, the plurality of pointers point to the combination of the scale marks and / or the symbol marks of the dial plate to display the passwords, the combination number of the passwords and the number of the pointers are in series relation, multiple groups of passwords can be combined, and the combination number of the passwords is increased by one order of magnitude once one pointer is added; the password is visually displayed, the confidentiality is high, and the cracking difficulty is very high.

The invention relates to a weak password judgment method and device. The method comprises the steps of obtaining a target character string, wherein the target character string is used for indicating a preset continuous character sequence and / or a keyboard character sequence; acquiring a password character string input by a user, and splitting the password character string into a plurality of substrings; a first array of each substring is determined, a second array is determined according to the first array, the first array is used for describing prefix and suffix features of a pattern string pointer on the substring, and the second array is used for indicating a rollback position of the pattern string pointer in the substring when matching fails; according to the second array of each substring, string matching is conducted on the substring and the target character string, a password judgment result is determined according to a matching result, and the password judgment result is used for indicating whether the password character string belongs to a weak password or not. According to the scheme provided by the invention, redundant and repeated operations can be reduced, and the recognition efficiency of the weak password is improved.

The application discloses a kind of based on affine frequency division multiplexing covert communication method and system.The method includes: transmitting end and receiving end respectively carry out channel estimation, obtain channel state information, and construct frequency domain channel matrix;Using channel reciprocity, both sides independently generate the same Chirp parameter codebook, avoid eavesdropper reconstruction;Transmitting end generates corresponding modulation symbol according to the input modulation bit;According to the amplitude of the diagonal element of frequency domain channel matrix, index bit is selected to the starting position of the Chirp parameter codebook;Transmitting end carries out affine frequency division multiplexing modulation according to the Chirp parameter codebook selected by index bit to constellation symbol and transmits;Receiving end reconstructs Chirp parameter codebook using its own CSI and completes matching decoding and modulation decryption.The application realizes shared password book without the need of privacy information exchange, makes full use of waveform parameter degree of freedom, improves the spectral efficiency and communication security of system, and is suitable for high-speed mobile communication data covert transmission.

1. Name of the product in this design: Pencil (Morse Code). 2. Purpose of this design: For writing text. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. Name of the designed product: Storage box (password). 2. Use of the designed product: Storage box for placing articles. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The invention discloses a video stream coding and decoding method and system based on Morse coding encryption, belongs to the technical field of multimedia information security, and aims to solve the technical problems that the existing video sensitive information is easy to perceive in transmission and the anti-interception and anti-cracking capabilities are weak. According to the technical scheme, the method comprises the following steps: a transmitting end separates a secret data block of an original video from a carrier video, encrypts the secret data block, maps the encrypted secret data block into an emoticon sequence, steganoscopes synchronous information to the carrier video, and separately transmits the synchronous information through two channels; and the receiving end extracts the synchronization information to reconstruct the mapping password book, analyzes the emotion icon sequence to obtain ciphertext data, and fuses the secret data blocks back to the carrier video after decryption to reconstruct the complete video. According to the method, the anti-interception and anti-cracking capability is improved through dual-channel separation transmission and dynamic mapping of the password book, the carrier video keeps visual coherence, secret transmission is prevented from being perceived, and the method is suitable for a high-safety video transmission scene.

Certain aspects of the disclosure provide a system and method for generating codes associated with clusters of sentiments, comprising receiving a text input, partitioning the text input into one or more segments, generating one or more numerical vectors associated with each of the one or more segments, comparing the one or more numerical vectors to generate a plurality of cosine proximity values associated with the one or more numerical vectors, applying a clustering algorithm to the one or more numerical vectors to generate clusters of segments within one or more cosine proximity ranges, and generating one or more codes associated with each of the clusters of segments within the one or more cosine proximity ranges, wherein each cluster represents an overall sentiment.

A character string collation device which generates an output collation result that is a result of collating one or more designated character strings for input text data that is a sequence of code words encoded using a plurality of code books, said character string collation device being configured in a manner such that a code book-specific collation state is defined by a combination of a collation degree indicating up to which character a match can be verified for which character string among the one or more designated character strings, and code book information indicating which of the plurality of code books a given book is, and so as to comprise: a state transition rule generation unit that uses one or more designated character strings and a plurality of code books to generate, for each code book-specific collation state, a state transition rule indicating a code book-specific collation state to which a transition is to occur, and a collation result to be outputted when inputting a code word included in the code book indicated by the code book information used to define the code book-specific collation state at the collation degree used to define the code book-specific collation state; and a collation unit that uses the state transition rule to generate an output collation result from input text data.

The application relates to the technical field of three-dimensional gesture recognition, and discloses a three-dimensional hand key point recovery method and system. The method comprises the following steps: acquiring a hand image and three-dimensional hand key point coordinates; inputting the three-dimensional hand key point coordinates into a hand posture encoder to extract a potential structure feature vector; searching for a nearest neighbor code word of the potential structure feature vector in a structured code book, constructing pseudo-quantized features through rotation alignment; performing image coding on the hand image to extract image guide features; performing conditional diffusion modeling on a noisy posture code word index, gradually predicting and restoring the discrete representation of an original posture under the assistance of the image guide features to obtain a restored posture code word index; and performing table lookup mapping and decoding on the restored posture code word index to obtain a three-dimensional hand key point coordinate prediction result. The application significantly improves the precision and robustness of three-dimensional hand key point estimation in a complex occlusion scene, and is particularly suitable for application fields such as human-computer interaction and virtual reality.

A system may include a first cipher engine, a second cipher engine, and a plaintext compare engine, wherein the first cipher engine, the second cipher engine, and the plaintext compare engine are configured to receive copies of an outbound data packet, wherein the first cipher engine and the second cipher engine are configured to encrypt the outbound data packet via at least one security policy, generating a first ciphertext data packet and a second ciphertext data packet. The system may include a set of first random number generators (RNGs) configured to generate a set of one-time pads. The system may include a set of front-end logic gates configured to encrypt the first ciphertext data packet according to the set of one-time pads. A system may include a hold register and a set of back-end logic gates configured to decrypt the first ciphertext data according to the set of one-time-pads.

The application discloses a strong password generation method and device based on user personal information, electronic equipment and storage medium. The method comprises the following steps: in an offline state, obtaining a target website name and personal information of a password to be generated input by a user; based on the personal information, obtaining a pinyin full name or an English full name of the personal information; randomly selecting a preset first number of letters in the pinyin full name or the English full name, and performing random uppercase and lowercase conversion or special character replacement to obtain a first string; adding a preset second number of random digital characters before the first character or after the last character of the first string to generate a second string; and taking the second string as a generated strong password. The application adopts an offline mode to generate and store the strong password, effectively reduces the risk of man-in-the-middle attack and data leakage, and ensures that each generated password has high entropy and complexity by randomizing the personal information of the user, thereby effectively resisting various password cracking attacks.

A method of beamforming for downlink (DL) transmission in a wireless communication system is provided. The method includes generating, by a base station of the wireless communication system, configuration information required to signal channel state information (CSI) to the BS, wherein the configuration information includes parameters of a code book, wherein the code book defines an overall set of spatial beams in which data streams can be transmitted from the BS, wherein each spatial beam is represented by a discrete Fourier transform (DFT) vector in the code book, and a parameter (NDFT) indicative of a maximum number of DFT vectors with one signal polarization in a precoding matrix, transmitting, by the BS, the configuration information from the base station to a user device (UE), based on CSI reference signals (CSI-RSs) received from the BS, choosing, by the UE, a number (L) of Multiple Input-Multiple Output (MIMO) layers.

1. Name of the product in this design: Password Collector (SP10). 2. Purpose of this design: To store passwords. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: a top view. 5. The design for which protection is sought includes color.

A codebook generation method and an electronic apparatus are provided. The codebook generation method includes: collecting a plurality of pieces of electric field information of a plurality of antenna units in at least one millimeter-wave antenna module based on an initial codebook; correspondingly generating a full chain codebook (Full Chain Codebook) based on the electric field information; then, extendedly generating a sub chain codebook (Sub Chain Codebook) based on the full chain codebook; and finally generating, based on the full chain codebook and the sub chain codebook, an optimized codebook (Optimized Codebook) by using a power saving algorithm or a cumulative distribution function 50% gain loss algorithm. Therefore, the electronic apparatus using the optimized codebook is more excellent in power saving efficiency and overall efficiency performance.

A method for encoding / decoding a message with One Time Pad (OTP) process, includes receiving a message to be encoded and an ordered dataset. A PRNG is parameterized with an initial seed that is used in a harvesting operation, which selects data from the dataset to create a current entropy plane of the selected data. In an encoding operation a portion of the received message is selected. The current entropy plane is scanned and data from which data is selected. The location of the selected data from the entropy plane is determined and marked as used and then assembled in an encoded message. This operation is repeated until no unmarked data is present in the current entropy plane. A new entropy plane is generated, and the scanning operation repeated until all portions of the received message have been processed. The process is reversed for a decoding operation.

The invention belongs to the technical field of calculator security, and discloses a control method and system for remote locking of a notebook computer and a computer storage medium, and the control method comprises the following steps: after an activation request sent by a computer terminal is received, obtaining decryption feature information based on the activation request; generating machine locking information including a password book and a machine locking strategy according to the decryption feature information; the locking information is returned to the computer terminal, so that the computer terminal executes corresponding locking operation according to the locking strategy; after an unlocking request sent by a user side is received, an unlocking code is generated according to the current effective password book and the equipment unique verification code; the unlocking code is returned to the user side, so that the computer terminal verifies the unlocking code input by the user side, and if the verification is passed, unlocking operation is executed on the computer terminal. According to the method, flexible locking strategy management can be utilized, flexible formulation and issuing can be carried out by the cloud based on time and other multi-dimensional factors, and the management requirements of complex business scenes are met.

The application discloses a spectrum encryption method based on a diffraction deep neural network, which comprises the following steps: training a diffraction deep neural network model, building a spectrum codebook, i.e. under the condition of spatial coherence or spatial incoherence, the diffraction deep neural network maps each input wavelength to an output pattern, i.e. a spectrum base; generating a spectrum code of encrypted information, i.e. according to the encrypted information and the built spectrum codebook, a corresponding spectrum code is generated; and decrypting the information by using the spectrum codebook and the spectrum code, i.e. according to the positive and negative spectrum codes, a plane wave with a corresponding spectrum amplitude is input, the corresponding positive and negative encrypted information is synthesized through the diffraction deep neural network, and the encrypted information is decrypted. The spectrum encryption method has low complexity and high security level.

This invention relates to the field of data encryption technology, specifically to a dynamic encryption and decryption method based on an iterative multi-generational model. The method includes: training a decryption model, saving model state snapshots according to preset iteration nodes during training; searching for a corresponding set of valid vectors in the latent space for each symbol in the plaintext space of the model state snapshot; establishing a cipherbook for each model state snapshot based on the correspondence between symbols and valid vector sets; assigning a model index to each symbol in the plaintext sequence to be encrypted, searching the corresponding cipherbook based on the iterative model index, using a selection function to find the valid vector corresponding to the symbol in the corresponding cipherbook, and adding the model index to the valid vector; searching for the corresponding model state snapshot in the iterative model library based on the model index, inputting the valid vector into the corresponding model state snapshot, and obtaining the recovered plaintext symbol. This invention significantly improves the robustness and anti-analysis capability of the encryption system.

The application belongs to the technical field of quantum secure communication, and discloses a key rotation method and system for a quantum secure network, which executes a key rotation process in a state machine driven manner on the premise of maintaining uninterrupted business services; specifically, while a current key is kept effective to process existing business, a next key is generated; a distributed lock mechanism is used to exclusively execute a key switching operation in a multi-node environment; the next key is atomically switched to a new current key, and the original current key state is updated to an old key, so as to realize seamless transition of business data encryption and decryption keys. Compared with the prior art, the application realizes uninterrupted business during the key rotation process, establishes an effective multi-node cooperation mechanism, introduces a transaction management mechanism, designs a perfect fault detection and automatic recovery mechanism, and builds a full life cycle security management system of codebooks and random number books to realize controllable full process from creation to archiving.

Certain aspects of the disclosure provide a system and method for generating codes associated with clusters of sentiments, comprising receiving a text input, partitioning the text input into one or more segments, generating one or more numerical vectors associated with each of the one or more segments, comparing the one or more numerical vectors to generate a plurality of cosine proximity values associated with the one or more numerical vectors, applying a clustering algorithm to the one or more numerical vectors to generate clusters of segments within one or more cosine proximity ranges, generating one or more codes associated with each of the clusters of segments within the one or more cosine proximity ranges, wherein each cluster represents an overall sentiment, and netting the one or more codes into one or more categories by inputting the one or more codes into a large-language model.

Embodiments of the present application provide an encryption and decryption method and device, electronic equipment and computer readable storage medium, comprising: obtaining a keychain used for encryption from a keychain library, and splitting the keychain to obtain a time number, a sorting number, a formula number and a password table number; splitting the data to be encrypted to obtain a plurality of single characters; converting each single character using a preset first encoding rule to obtain a first code corresponding to each single character; and encrypting the first code corresponding to each single character based on the time number, the sorting number, the formula number and the password table number to obtain encrypted ciphertext corresponding to each single character. Embodiments of the present application greatly reduce the possibility of cracking and ensure the security of encryption.

The invention discloses a covert communication method and system based on imitation radio frequency division multiplexing. The method comprises the following steps that: a transmitting end and a receiving end respectively carry out channel estimation to obtain channel state information, and construct a frequency domain channel matrix; by using channel reciprocity, the two parties independently generate the same Chirp parameter codebook, so that reconstruction by an eavesdropper is avoided; the transmitting end generates a corresponding modulation symbol according to the input modulation bit; selecting an index bit according to the amplitude of a diagonal element of a frequency domain channel matrix, and mapping the index bit to the initial position of the Chirp parameter codebook; the transmitting end performs imitation radio frequency division multiplexing modulation on the constellation symbols according to the Chirp parameter codebook selected by the index bit and transmits the constellation symbols; and a receiving end reconstructs a Chirp parameter codebook by using own CSI (Channel State Information) and completes matched decoding and modulation decryption. The encryption codebook is shared under the condition that privacy information exchange is not needed, the waveform parameter freedom degree is fully utilized, the spectrum efficiency and communication safety of the system are improved, and the method is suitable for data hidden transmission of high-speed mobile communication.