265 results about "Number generator" patented technology

The invention provides a distributed quantum security encryption method, system and device. The method comprises the following steps: monitoring the quality of a quantum key distribution link in real time, and dynamically selecting a quantum key, a post-quantum session key or a fusion key of the quantum key and the post-quantum session key as a working key; and when the node cannot be directly reached, the trusted relay node generates an end-to-end key seed by using a quantum key and a post-quantum cryptography shared key which are respectively established with the two ends, the end-to-end key seed is encrypted and distributed by a public key and then a session key is independently derived by the two communication parties, and the relay node cannot decrypt. The system adopts a distributed Mesh network architecture supporting a terminal / relay dual mode. The device integrates a quantum random number generator, a post quantum cryptography coprocessor and a mixed key engine. The method integrates the advantages of quantum physical security and post quantum cryptography, has high security and availability, and is suitable for constructing a key infrastructure security communication network resisting quantum computing attack.

The invention relates to the technical field of wireless communication, in particular to a public network interphone with a quantum chip. According to the interphone, a master control module and a quantum security chip work cooperatively, a quantum random number generator is used for dynamically deriving a session key, and offline security distribution of a group master key is realized by encrypting a two-dimensional code; in a communication process, a system adaptively switches a voice coding mode according to a network condition, end-to-end authentication encryption is carried out on voice data by using a hardware encryption engine, and low-delay transmission is guaranteed through a network priority mark; the device establishes a complete key life cycle management mechanism, supports regular update and forward security of session keys and instant update and backward security of a group master key when members change, and ensures that all key operations are completed in a quantum chip. According to the invention, various eavesdropping and tampering attacks are effectively resisted, and safe, real-time and clear high-confidentiality voice communication in a public network environment is realized.

The embodiment of the invention provides a physical unclonable function generator and a true random number generator. The physical unclonable function generator comprises a storage array and a control unit, a storage unit in the storage array comprises a magnetic storage device, and the magnetic storage device comprises a magnetic tunnel junction; the control unit is used for controlling the application of a magnetic field along a target direction to the storage array, and reading the resistance state of the storage unit to generate a physical unclonable function after the application of the magnetic field is stopped; wherein the target direction is perpendicular to or approximately perpendicular to the magnetic moment direction of the free layer in the magnetic tunnel junction in the in-plane direction, and the randomness and uniformity of the physical unclonable function are improved.

The invention relates to a key management method and device based on a quantum security chip carrier, and relates to the technical field of quantum computing, a unique UID is generated through a quantum random number generator in combination with a PUF technology, a mapping relation is established, sub-keys are derived in a layered mode and stored in a partitioned mode, and the key management efficiency is improved. A ternary binding mechanism of a chip unique identity, a quantum random entropy source and a storage environment fingerprint is constructed, through integrity verification, bidirectional identity authentication and a quantum secure transmission channel, key full-life-cycle security control is realized, quantum attacks and security threats are effectively resisted, and the security, credibility, traceability and suitability of key management are improved.

The invention discloses a random question number generator and method suitable for a question and answer mode watchdog, and belongs to the technical field of integrated circuit safety. Comprising an on-chip high-frequency oscillation source, an enabling controller, a low-power-consumption controller, a pseudo-random number generator and a random code hopping device. According to the method, an external dog feeding signal is used for triggering, a non-reproducible hopping code value is generated by using different sources of clock sources and physical deviation of signal transmission, a pseudo-random number generator is controlled to operate within a random duration, and a low-power-consumption state is entered after a final random problem number is output and latched. Through hardware-level entropy source enhancement and dynamic power consumption management, the predictable potential safety hazard of the traditional pseudo-random number sequence is fundamentally solved, and the balance of high randomness, high attack resistance and low power consumption is realized at low cost.

An electronic gaming device includes a processor configured to determine a symbol position state of a plurality of symbol position states wherein each symbol position state corresponds to a number of symbol positions and based upon the symbol position state, determine a paytable of a plurality of paytables. The processor is also configured to receive a random number generator (RNG) output and based upon the RNG output and the paytable, control display of a plurality of symbols. The processor is further configured to determine that the plurality of symbols includes at least one modifier symbol and based upon the at least one modifier symbol, determine a different symbol position state and a different paytable for a next play of the electronic game wherein the different symbol position state includes at least one more symbol position than the number of symbol positions.

True random number generators including ring oscillator circuits leveraging frequency and phase collapse events are described. An example ring oscillator circuit (ROC) includes a first oscillating loop comprising a first set of inverters, where the first oscillating loop is to oscillate at a first frequency and phase. The ROC further includes a second oscillating loop comprising a second set of inverters, which differs from the first set of inverters either in terms of a type of inverters or a number of inverters. The second oscillating loop is to oscillate at a second frequency and phase, different from the first frequency and phase. The ROC further includes a third oscillating loop to, as a result of mode switching from a first mode of operation into a second mode of operation, oscillate at a third frequency and phase, different from the first frequency and phase and the second frequency and phase.

The embodiment of the invention discloses a memory security self-checking circuit and method, a chip and a memory security circuit. The memory security self-checking circuit comprises a random number generator, a random address generation module, a first address output selector, a first memory, a second memory, a self-checking module and a decryption circuit, the output end of the random number generator is connected with the first input end of the random address generation module, and the output end of the random address generation module is connected with the first input end of the first address output selector; the output end of the first address output selector is connected with the input end of the first memory and the input end of the second memory; the output end of the first memory is connected with the input end of the self-checking module, and the output end of the self-checking module is used for providing a result flag bit obtained by checking the self-checking data for the control circuit; the output end of the second memory is connected with the input end of the decryption circuit. The security of the chip is improved, and important programs and data related to the chip are protected.

A system for generating a virtual model of a virtual patient including: a template module to provide a morphable virtual 3D mesh template for a virtual model of a human organ; an anatomical parameters module to provide a range of values for each adjustable anatomical parameters of the virtual model, each value associated with a morphed state of the template; a plausibility module to provide at least one relation for the template in at least one morphed state, the relation being between at least two of the parameters; an instantiation module to provide, using a pseudo-random number generator, a parameter set including, for each parameter of the virtual model, a value of the corresponding range of values, while fulfilling the at least one relation; and a generating module to generate the virtual model based on the template in the morphed state corresponding to the selected parameters.

The application provides a soft and hard cooperative security AI NAS storage and calculation system and an access authentication method, and belongs to the technical field of network storage. The system comprises a hardware security layer, a lobster security core module, a compulsory authentication gateway, an encrypted storage engine, an intelligent access control module and a security audit and monitoring module. The hardware security layer comprises a lobster security chip and a hardware root of trust module. The lobster security chip is an independent security processor, and is internally provided with a true random number generator, an encryption acceleration engine and a security storage area. The hardware root of trust module is used for system startup verification and root key hardware protection. Through the soft and hard cooperative architecture and the compulsory authentication mechanism, the application realizes a complete trust chain from the hardware root of trust to the application layer, can effectively prevent ransomware attacks and data leakage risks, and improves data operation efficiency.

A system to generate true random numbers includes a RAM array, a null-read controller and a hash generator. The RAM array has memory cells and a sense amplifier. The memory cells store data therein, the cells are connected in rows to word lines and in columns to pairs of bit lines, and the sense amplifier senses a differential input signal. The null-read controller implements a null-read operation by the sense amplifier of a portion of the RAM array. The hash generator receives a null-read result from the null-read operation and outputs a partial true random number based on the null-read result.

Systems and techniques for secure communications and distribution of random values, provided via satellite communications, are described. These random values are generated from one or more ground-based entropy sources (e.g., quantum random number generators (QRNGs) at terrestrial locations), and optionally combined with values from satellite-based entropy sources (e.g., QRNGs at non-terrestrial locations). An example method includes: receiving a first random value generated by a first QRNG at a terrestrial location; receiving a second random value and a third random value via at least one satellite communication, each additional random value generated by other QRNGs; and generating a cryptographic key based on the first random value, the second random value, and the third random value. The cryptographic key may be produced by a key derivation function that combines the random values, and the cryptographic key may be used to establish a secure communication session.

Embodiments of the present invention provide entertainment gaming systems and methods comprising, among other things, a real world non-random number outcome generator machine and an entertainment gaming machine wherein the non-random outcome from the real world non-random number generator machine is processed into an entertainment gaming machine outcome. The entertainment gaming system and method of embodiments of the invention may be configured to collect non-random number based outcome from a real-world event and transmitting it to the entertainment gaming machine. The non-random number outcome from the real-world is processed into an entertainment gaming machine outcome event by the entertaining game machine processor or by the central server. The central server communicates with the real word non-random number outcome generator and entertainment gaming machine wherein the central server further transmit the processed outcome to the entertainment gaming machine to generate the game result requested by the triggering event on the entertainment gaming machine.

FIELD: computing technology.SUBSTANCE: invention can be used for hardware implementation of the evaluation of random number generators (RNG) based on repeating codes in the output sequence from the RNG. A random number generator quality analyser includes a shift register, a decoder, a comparison unit, a counter, a logarithm calculator, a divider, and a square root calculator, wherein the first input of the device is connected to the input of the shift register, the output of which is connected to the first input of the comparison unit, the second input of the device is connected to the input of the decoder, the output of which is connected to the second input of the comparison unit, the output of which is connected to the input of the counter, the output of which is connected to the input of the logarithm calculator and to the input of the divider, built on the basis of the CORDIC algorithm, the output of which is connected to the input of the square root calculator, the output of which is connected to the output of the device, wherein the output of the logarithm calculator is connected to the input of the divider.EFFECT: expanding the information field for assessing the quality of the RNG operation during hardware implementation.2 cl, 5 dwg

The arrangements disclosed herein relate to generating, by a first server, a first seed using a Hash-Based Message Authentication Code (HMAC) based at least in part on a Hash Key (HK), providing, by the first server to each of a first device and a second device, the first seed, providing, by a second server to each of the first device or the second device, a second seed. The second seed is based at least in part on a stream of photons. Each of the first device or the second device generates a Derived Key (DK) based at least in part on the first seed and the second seed. Each of the first device or the second device generates a first key based at least in part on the DK and a first random number generated by a Quantum Random Number Generator (QRNG). The first device encrypts first data using the first key to obtain first ciphertext and provides the first ciphertext to the second device. The second device derives the first key and decrypts the first ciphertext using the first key.

The invention provides a method for regulating and controlling a true random number generator based on atomic point contact, which comprises the following steps of: clamping a two-dimensional material with a layered structure between an active metal electrode and an inert metal electrode, and migrating active metal ions on one side of the active metal electrode along a limited channel under the action of an external electric field to form atomic point contact, so that the true random number is generated. Then, perturbation voltage is applied, so that atoms or ions in atomic point contact are subjected to random thermal activation transition among unstable sites, random telegraph noise is generated, and the random telegraph noise is converted into a binary true random sequence; and then negative scanning voltage is applied to one side of the active metal electrode, so that device reconstruction can be realized. According to the invention, dynamic regulation and control of atomic point contact can be realized through an electric field, so that diversified random output can be obtained under different conductivity states, random telegraph noise signals drifting or disappearing due to long-term operation can be effectively recovered, and the service life of the device can be prolonged.

An electronic circuit comprising a data storage element, a quantum random number generator, and a communication interface is provided. The electronic circuit is configured to: a) provide at least one true random number using the quantum random number generator; b) generate a cryptographic key based on the provided random number and make it available for adapting an encryption method for encrypted communication with a communication partner; c) provide the communication partner with information about the adaptation of the encryption method via the communication interface; and d) generate a block to confirm the adaptation of the encryption method for a blockchain and store the blockchain with the block in the data storage element.

The invention provides a universal architecture and system for protecting privacy computing, and the universal architecture for protecting privacy computing comprises a secret state computing server and a plurality of participant servers. The participant server is pre-configured with a random number generator, the random number generator is used for generating a mask, and each random number generator has the same random number generator logic; the secret state calculation server is used for receiving the mask secret state data sent by the participant server, calculating the mask secret state data and sending a calculation result to the participant server according to a preset rule; the mask secret state data is generated by adding the masks into plaintext data. The method has a good privacy protection effect on the data, the problem of poor privacy protection in the prior art is solved, and meanwhile, the operation efficiency of the system is also improved.

This invention belongs to the field of random number generator technology, and relates to a true random number generator based on volatile memristors and a method for fabricating memristors. The method includes an entropy generation unit and a bit extraction unit. The entropy generation unit includes two or more volatile memristors connected in parallel, one end of which is connected to the input voltage, and the other end is connected in series with a load resistor and then grounded. The entropy generation unit exhibits spontaneous bistable switching behavior under high input voltage. The bit extraction unit includes a T flip-flop connected between the load resistor and the parallel volatile memristors, used to sample oscillation signals and generate a usable random bit stream. Its advantages are that it simplifies the circuit structure of the true random number generator, achieves a high random bit generation rate, and achieves extremely high energy efficiency.

The application discloses a quantum random number generator, which uses an optical chip to replace a quantum optical system built by multiple independent optical components in an existing quantum random number generator to generate a quantum entropy source signal, meanwhile, uses an analog IC chip and a digital IC chip to replace signal processing parts such as an analog amplification filtering part, an analog-digital conversion part and a post-processing part built by multiple independent electronic chips in the existing quantum random number generator to process the quantum entropy source signal, and the optical chip, the analog IC chip and the digital IC chip are packaged on the same substrate, so that the quantum random number generator is chipped and integrated, that is, a quantum random number generator with small volume, low cost and large-scale production is provided, and can be applied to application scenarios such as mobile phones and camera encryption.

The embodiment of the invention discloses an image encryption method and system based on a fractional order pseudo-random number generator and DNA coding and decoding, and the method comprises the steps: determining the length of a key string required for encryption based on a partitioned image, and generating a high-randomness key string according to the fractional order pseudo-random number generator, the problems that a traditional integer order chaotic system is insufficient in randomness and limited in secret key space are solved, a CBC chain type encryption mode is introduced to conduct inter-block encryption on each block of image after block division, generation of each ciphertext block depends on a previous ciphertext, inter-block relevance is established, the problem that the inter-block relevance is missing due to the independent encryption characteristic is solved, and the encryption efficiency is improved. According to the method, the image is encrypted, the differential attack resistance of the image is enhanced, the DNA coding and decoding rule is dynamically selected based on the key string, and the image block is encrypted on the basis, so that the defect that the static coding rule is easily subjected to exhaustive attack is overcome, the real-time dynamic coding mechanism is realized, and the attack resistance of image encryption is improved.

The utility model discloses a train operation scene test platform based on an unmanned driving mode, and relates to the technical field of train data simulation. Comprising a temperature detection simulation module which is composed of an integrated circuit temperature sensor, a diode and a first addition arithmetic unit and is used for detecting the surface temperature of the train diesel engine through communication of the sensor and the diode; the train running speed simulation module comprises a tachometer conversion board and a second addition arithmetic unit, and the voltage signal output by the industrial personal computer is adapted to the display equipment through the conversion board to simulate the train running speed; the disturbance signal simulation module comprises a random number generator chip and an operational amplifier and is used for simulating interference signals in the train running process and inputting the interference signals to the temperature and speed module; and the monitoring display module is composed of a microcontroller and train data display equipment, receives and displays the analog data and provides monitoring of the running state of the train. The platform can accurately simulate key parameters in the operation process of the unmanned train.

The invention relates to a node of a network, wherein the node comprises a monolithically integrated entropy source comprising: a photon source designed to emit photons, wherein the photon source comprises a first housing, wherein the first housing is formed by a first bottom face, a first top face and at least one first side face interconnecting the first bottom face and the first top face; and a photon detector designed to detect photons emitted by the photon source, wherein the first bottom face of the photon source is arranged towards the photon detector.

The application discloses a handwritten signature method based on a collaborative signature technology, and is carried out according to the following steps: S1, identity information and biological characteristics of a user are collected through a client; S2, the client initializes a random number generator, generates a client SM2 collaborative signature key component d1 and a public key negotiation parameter P1, and sends them to a server; S3, the server generates a server SM2 collaborative signature key component d2, negotiates a public key P with the client public key negotiation parameter P1, and applies for an event certificate to a certificate authority; S4, the server generates an electronic seal based on a handwritten signature track picture, combines a to-be-signed original text, a time stamp and the event certificate, and assembles to-be-electronic signature data; S5, the server and the client complete SM2 collaborative signature of the to-be-electronic signature data through single interaction, generate a signature value, and assemble electronic signature data; and S6, the client and the server destroy the generated data. The application has better operation convenience and higher key security.

Photonic quantum random number generators (QRNGs) that may natively generate entropy of a desired distribution (e.g., according to a desired PDF) are disclosed. These photonic QRNGs may comprise a photon source coupled to a Mach-Zehnder Modulator (MZM) array comprising a set of MZMs. This array of MZMs can be coupled to a photodetector array comprising a set of photodetectors. An extractor can be coupled to the photodetector array where the extractor is adapted to produce values based on detection of photons at the photodetector array. The MZM array can be tuned to achieve a desired distribution of entropy.

The invention discloses a noise frequency modulation signal generation device, which is realized based on a field programmable gate array (FPGA), and adopts the following method steps: S1, in the FPGA, constructing an arbitrarily distributed random number generator to obtain random numbers conforming to distribution; s2, linearly mapping the obtained random number into a frequency modulation noise bandwidth by using a linear mapping method to obtain a random frequency conforming to Gaussian distribution; and S3, converting the obtained random frequency into frequency modulation noise by using a direct digital frequency synthesis technology. Complex linear algebraic operation is simplified into integer addition, subtraction and shifting, FPGA parallelism and special hardware resources are fully utilized, high speed, low resources and high statistical quality are considered, and a reliable hardware noise source is provided for scenes such as communication simulation and radar interference.

The invention discloses a true random number generator and a chip. The true random number generator comprises a phase-locked loop module and a trigger module, wherein the phase-locked loop module comprises a spin torque nano oscillation unit. The input end of the phase-locked loop module is used for receiving a reference signal, and the output end of the phase-locked loop module is connected with the trigger module. The phase-locked loop module is used for obtaining an output signal based on the spin transfer torque effect of the spin torque nano oscillation unit according to the reference signal and a feedback signal, and the feedback signal is a signal obtained by feeding back the output signal to the input end. The trigger module is used for sampling the output signal based on the reference signal to generate a random number sequence. Therefore, the random number sequence with high randomness can be generated, the influence of sampling and external magnetic field interference on the random number sequence is eliminated, and the robustness of the true random number generator is enhanced.

Embodiments of the application disclose a database primary key generation method and device, electronic equipment and a storage medium. The method comprises: generating a primary key generation matrix according to a target character set and a target number set, the target character set comprising characters in an ASCII character set; generating a position matrix according to the number of primary key elements in the primary key generation matrix; generating a random integer in a target integer range through a pseudo-random number generator according to random seed information; obtaining a target position element corresponding to the random integer in the position matrix; determining a target position represented by the target position element and obtaining a target primary key element corresponding to the target position from the primary key generation matrix; and repeatedly performing the operations of generating the position matrix and obtaining the target primary key element until a character sequence meeting a target condition is obtained, and taking the character sequence as a database primary key, the character sequence comprising the target primary key element. The embodiments of the application can improve the primary key generation efficiency and security.

The invention relates to a satellite identity authentication method based on a quantum random number generation technology, which comprises the following steps that: a ground master control station respectively sends a preset root key to a satellite end and a ground terminal, and a quantum random number generator QRNG is arranged in the satellite end; after a ground terminal sends an access request signaling to a satellite terminal, the satellite terminal generates a quantum random number R and returns the quantum random number R and a downlink signaling message to the ground terminal together, and at the moment, the satellite terminal selects one of a symmetric algorithm mode and an asymmetric algorithm mode to perform identity authentication according to the length of a reserved bit of a signaling frame; the ground terminal generates an encrypted authentication message by using a preset root key, and the satellite terminal authenticates and confirms the encrypted authentication message and then sends an access confirmation signaling; if not, refusing connection and triggering an alarm; the quantum random number generation technology is used as an authentication key, real-time switching between a symmetric encryption mode and an asymmetric encryption mode can be achieved, the safety of the system is improved to the maximum extent, meanwhile, the communication timeliness of the system is not affected, and the bandwidth is saved.

The application relates to the technical field of information security, and particularly discloses a homomorphic encryption method and system based on the Chinese remainder theorem, which comprises the following steps: a client initializes system parameters and generates an encoding modulus base; the client generates an encryption key through the system parameters and a random number generator; the client uses the Chinese remainder theorem to encrypt a message plaintext into ciphertext by using the encoding modulus base and the encryption key, and sends the ciphertext and the encoding modulus base to a server end; the server end performs homomorphic calculation on the ciphertext through the encoding modulus base to generate a homomorphic operation result; and the server end decrypts the homomorphic operation result by using the encryption key. The application can significantly compress the ciphertext size and greatly reduce the communication and storage overhead of the system.