43results about How to "Guaranteed absolute security" patented technology

The invention discloses a key distribution system and a key distribution method based on multiuser remote communication. Quantum key synchronization between each user terminal and a central management system is realized in a manner of carrying a key relay server by an aerial vehicle. Then the central management system distributes a session key to a user terminal which requires participation into communication in a quantum key encrypted session key manner. A data packet only requires session key encryption, thereby realizing a purpose of multi-user-terminal communication. The key distribution system and the key distribution method ensure absolute safety in multiple-party communication and prevent a high-standard requirement for a QKD system in a one-packet and one-key manner so that quantum encrypted communication is suitable for a large-scale multiple-party communication occasion. Furthermore, establishing of a quantum channel between each user terminal and the central management system is not required. Not only is a problem of quantum information attenuation in remote channel transmission settled, but also a problem of difficult quantum channel disposition is alleviated.

The invention provides a postprocessing method for quantum key distribution. The postprocessing method comprises the following steps of S1, performing information interaction and local postprocessing by a transmitting party and a receiving party, thereby acquiring a first shared key from transmitting information of the transmitting party and acquiring a second shared key from receiving information of the receiving party; S2, performing error correction on the first shared key and the second shared key; S3, verifying whether the first shared key and the second shared key are same, if yes, performing a step S4, and otherwise returning to the step S2; S4, evaluating the size of the leakage information by the transmitting party and the receiving party, and acquiring a safe key from the first shared key and the second shared key according to the size of the leakage information through a privacy amplification process; and S5, storing the safe key in a key pool by the transmitting party and the receiving party. The postprocessing method can improve correctness and safety in quantum key distribution.

The invention relates to an effervescence preparation composition used for a sanitary towel and a preparation method and application thereof. The effervescence preparation composition is made from thefollowing raw material by weight proportion: 7 to 10 percent of malic acid, 3 to 5 percent of boletic acid, 10 to 15 percent of sodium bicarbonate, 1 to 4 percent of medical PVP, 35 to 70 percent oftragantine, 0.05 to 0.3 percent of triclosan and 0 to 30 percent of additive agent which contains at least one kind of sodium dodecyl sulfate, beta-cyclodextrin, glycerin, lanoline, propolis and jasmine essence. The effervescence preparation composition adopts the raw materials in the food grade and is safe without toxicity. The preparation adopts the powder technology. After the preparation encounters water, acid and alkali in the preparation are subjected to neutralization reaction to produce gas. The repulsive interaction of the gas accelerates the dissolution rate of the preparation in thewater, makes efficacy ingredients rapidly dissolve, solves the problem of unobvious drug effect of a solid preparation, improves the utility ratio of the content of effective ingredients of a liquidpreparation and can be used for preparing sanitary towels, sanitary protecting mats or panty-shape diapers.

The invention discloses a group signature system based on quantum keys. The group signature system comprises a quantum key generator, a signature key, a quantum group key generator, a group key, a quantum group signature module, a group signature and a quantum group signature verification, wherein the quantum key generator is a quantum sequence device generated by a laser source, and is used for forming a shared key of a newly-added group member and a group administrator; the quantum group key is issued to group members by the group administrator and used for encryption in signing according to a quantum state sequence generated by means of the quantum group key generator, and different sequences are generated according to different business transactions; and the quantum group signature module is used for performing quantum encryption on messages and signatures by the group members. The group signature system based on the quantum keys has the significant advantages that: identities are determined through distribution and measurement of the quantum keys, the efficiency is higher while the security is improved, and group members can be added and deleted quickly; and the group signature system is more suitable for a complex group signature environment, has the features of unlinkability and coalition attack resistance, and can realize coalition signature of a plurality of the group members.

The invention discloses a two-factor authentication method based on a digital certificate and biological identification information. The main idea of the method is that a certificate authority (CA) digital certificate is transmitted to a mobile phone or a personal computer (PC) terminal of a user which is a normal user or a financial approval leader in a server such as a server of an accounting document management system, the digital certificate can pass the authentication of a third-party authority electronic authentication center, validity of the user is verified by the digital certificate, and the biological identification information is used as a respective private key in a digital certificate key pair which is used by the server and a client in the authentication process of the digital certificate to further ensure the security of authentication; and the biological information such as iris information and fingerprint information is identity inherent information and cannot be copied or stolen, so that the absolute security of authentication can be ensured.

The invention provides an operation request processing method and system. The operation request processing method comprises the steps that after receiving an operation request message, a background system server generates a response message according to a first preset security class and sends the response message to a network terminal through a third-party system server; after receiving the response message, the network terminal generates a feedback message according to a second preset security class and sends the feedback message to the background system server through the third-party system server; after receiving the feedback message, the background system server executes an operation request. By conducting security classification on data to be transmitted, semi-transparency of communication data is realized, a part of the communication data are transmitted in the form of plaintexts, and the integrity and the safety of the data to be transmitted with a higher security class can also be guaranteed on the premises that the absolute security of the data to be transmitted with the highest security class is guaranteed and the plaintexts of the data to be transmitted with the higher security class and the plaintexts of the data to be transmitted with a lower security class are visible.

The invention discloses a control system for internal and external network security access. The system comprises a terminal security access subsystem and a gateway security access subsystem. The terminal security access subsystem solves the security problem encountered when the terminal accesses the intranet; access establishment process, providing unique recognition, communication process, data generated in the communication process is encrypted and stored in a partitioned manner; communication end process, securing in-time cleaning of caches, the gateway security access subsystem mainly realizes authentication auditing work for terminal access, can accurately authenticate terminal identity representation in the authentication process, and adopts different communication measures for the terminal according to an authentication result to ensure absolute security of the data. The invention further provides a corresponding control method which can be applied to an institution organizationwhich has high requirements for intranet data security and requires the terminal equipment to have a certain degree of flexibility.

The invention discloses an Internet of Things data quantum encryption transmission device and a transmission method. The quantum encryption transmission device for Internet of Things data comprises aquantum encryption device and a quantum key distribution device. The quantum encryption device comprises a control platform end encryption device and a client end encryption device. The Internet of Things cloud platform is interconnected with the public network through the control platform end encryption device, and the Internet of Things terminal network is interconnected with the public networkthrough the client end encryption device. The quantum key distribution device comprises a quantum gateway, a control platform end encryption device and a client end encryption device are arranged beside the quantum gateway, and the control platform end encryption device and the client end encryption device obtain the quantum key from the quantum gateway in real time. The invention also provides atransmission method of a quantum encryption transmission device for Internet of Things data.

The invention discloses a post-processing system for phase polarization joint modulation QKD. The system comprises a sender and a receiver. Each of the sender and the receiver comprises an informationinteraction unit, a parameter estimation unit, an error correction unit and a confidentiality amplification unit which are connected in sequence. The information interaction unit, the parameter estimation unit, the error correction unit and the confidentiality amplification unit of the sender are respectively connected with the information interaction unit, the parameter estimation unit, the error correction unit and the confidentiality amplification unit of the receiver in a one-to-one correspondence manner through channels. According to the invention, aiming at the characteristics of a phase polarization joint modulation QKD system and a double-speed protocol used by the phase polarization joint modulation QKD system, a traditional transceiver base vector comparison step is not needed in the information interaction unit, so that the information interaction amount is reduced, and the post-processing efficiency is improved; and the parameter estimation unit estimates the bit error rate of the key by using a packet parity check method, and selects a reasonable error correction method and a secrecy amplification method after estimating channel parameters, so that the correctness andthe safety of quantum key distribution are improved by the steps.

The present application provides a data acquisition method and system based on block chain, the method comprises the following steps: a terminal sends a data acquisition request to at least one node in a block chain, wherein the data acquisition request includes a user identification and a data attribute identification, so that each node in the at least one node determines data information corresponding to the user identification and the data attribute identification; the terminal receives data information sent by each of the at least one nodes, wherein the data information includes a data attribute identification; the terminal decrypts each data information in at least one data information to obtain each decrypted data information. The terminal determines the final data information according to each decrypted data information. Because the data information is encrypted in pieces and placed on different nodes, the incompleteness of pieces of data can ensure the absolute security of thedata, and the data information will not be sold and disclosed.

The invention discloses a hard light induced blindness monitoring device of a single-photon detector. The hard light induced blindness monitoring device comprises a temperature control circuit module, a PIN photoelectric diode, a bias voltage setting module and a pulse shaping and alarm signal generating module, wherein the PIN photoelectric diode is used for converting hard light narrow-pulse signals transmitted by an attacker into narrow-pulse current and outputting narrow-pulse voltage in proportion to the narrow-pulse current, the pulse shaping and alarm signal generating module is used for converting the narrow-pulse voltage outputted by the PIN photoelectric diode into a standard level which can be identified by follow-up master control chips, and the bias voltage setting module is used for setting reverse bias voltage added on the PIN photoelectric diode. The invention further discloses a hard light induced blindness monitoring method. The hard light induced blindness monitoring device is simple in circuit and low in cost, when showing up in quantum channels, hard light attack signals can be immediately monitored, and alarm signals can be transmitted to an upper computer, accordingly, absolute safety of a quantum key communication system is ensured.

The invention provides an operation request processing method and system. The operation request processing method comprises the steps that after receiving an operation request message, a background system server generates a response message according to a first preset security class and sends the response message to a network terminal; after receiving the response message, the network terminal generates a feedback message according to a second preset security class and sends the feedback message to the background system server; after receiving the feedback message, the background system server executes an operation request. By conducting security classification on data to be transmitted, semi-transparency of communication data is realized, a part of the communication data are transmitted in the form of plaintexts, and the integrity and the safety of the data to be transmitted with a higher security class can also be guaranteed on the premises that the absolute security of the data to be transmitted with the highest security class is guaranteed and the plaintexts of the data to be transmitted with the higher security class and the plaintexts of the data to be transmitted with a lower security class are visible.

The invention relates to key service-oriented architecture based on multi-terminal communication and a distribution method. The key service-oriented architecture comprises a key service system, a plurality of personal key storage spaces are formed in the key service system; each client can access the corresponding personal key storage space, and cannot access the personal key storage space of other clients; the key service system is further provided with a client online management server, wherein the client online management server is used for monitoring whether each client is in the online connection state, and pushing a session key to each client in online state. Compared with the prior art, the aim of security communication in multi-party clients can be realized by only adopting the data packet session key encryption way, and the one-packet key high-standard requirement to the QKD system is avoided at the same time, the quantum encryption communication can be well suitable for the large-scale multi-party communication occasion; the key service-oriented architecture guarantees that the participants can rapidly and accurately receive the session keys, and the security and the efficiency of the communication are improved.

The invention discloses an anti-toppling mechanical device and method for an internal suspension stay wire holding pole. The anti-toppling mechanical device mainly comprises a triggering mechanism and an anti-toppling mechanism, the triggering mechanism comprises a triggering box, the triggering box is installed on the holding pole, a channel is formed in the triggering box, the middle of the channel is low, the outer side of the channel is high, a triggering ball is installed at the low position of the channel, a groove is formed in the high end of the channel, a pressure sensor is arranged in the groove, the anti-toppling mechanism comprises a plurality of supports, the upper portion of each support is hinged to a longitudinal beam of the holding pole, a first electromagnet and a second electromagnet are installed on the lower portion of each support, When each first electromagnet is powered on and the corresponding second electromagnet is powered off, the first electromagnet and the holding pole are attracted and fixed, and when each first electromagnet is powered off and the corresponding second electromagnet is powered on, strong springs unfold the supports to abut against an iron tower. According to the anti-toppling mechanical device and method for the internal suspension stay wire holding pole, the internal suspension stay wire holding pole is prevented from toppling, it is guaranteed that a tower body is not damaged, and constructors are not injured.

The invention belongs to the technical field of aircraft flight control, and particularly relates to an integrated control design method of ship-borne unmanned aerial vehicle arresting landing and escape re-flight. The integrated control design method comprises the steps of S1, designing a control strategy before landing; S2, designing a control strategy of ship-touching sliding; and S3, designinga control strategy of escape re-flight. The integrated control design method mainly solves the problems of arresting landing and escape re-flight of a ship-borne aircraft. An integrated control method is adopted in the longitudinal direction of successful landing and failed landing escape re-flight of the ship-borne unmanned aerial vehicle, other additional judgment conditions are not needed between the two conditions, and the timeliness and safety of escape re-flight when the ship-borne aircraft fails to land are guaranteed.

The invention discloses a functional materia medica high-calcium element, in particular to a functional materia medica high-calcium element which has the nutrition health functions of strengthening stomach and promoting digestion, supplementing calcium and discharging lead, promoting growth and intelligence, replenishing qi and blood and is specially used for children and youths as well as a preparation method. The invention belongs to the field of nutrition and health food and is manufactured by taking lotus root powder, chrysanthemum powder, calcium powder, iron powder, zinc powder, vitamin C, taurine and casein phosphopeptide as the main materials. The manufacture technique is simple and convenient; the operability is high. The safety and the taste of the product are good; besides, the product has no bitter and iron fishy smell, does not stimulate gastrointestinal tracts, is easily eaten, is easily absorbed by a human body, has a plurality of nutrition health functions and provides the most effective nutrition help for the health growing of children and youths.

The invention discloses a production process for mineral beer, which comprises: activating naphtha, and adding the activated naphtha into beer to soak the naphtha for at least 7 days before the beer is filled; taking the soaked naphtha out from beer liquid, and filtering under a sterile condition; and after sterile filling, sterilizing by radiation with cobalt-60 as a radioactive source. In the process, the naphtha is used to mineralize common beer, so that the beer contains various trace elements such as magnesium, selenium, lithium, manganese, boron, strontium, germanium and the like; lucid ganoderma also can be added to increase the germanium content in the beer; the radiation sterilization mode is adopted for complete sterilization, so the quality guarantee period of the beer is prolonged and the drawback of reduction in nutrients of the conventional sterilization is overcome; and thus, the beer which contains various trace elements, is benefit for health of human bodies and has a long quality guarantee period is produced.