264 results about "SequenceNumber" patented technology

In a computer communication network including a firewall which protects a secured host against attack from outside computers, the host communicating with an outside computer, through the firewall, via data packets which include byte sequence numbers. In a communication between the host and computer in which one of them acts as a source and the other as a destination for the communication, a sequence number offset is derived by the firewall which characterizes the byte sequence number received from the source and the byte sequence number the firewall will provide to the destination for that communication. In a communication received from the source, the firewall adds the offset to byte sequence numbers in a packet passing between the source and destination, in order to determine the byte sequence numbers it will provide to the destination. Thus, proper sequence numbers can be provided to both locations, without the firewall having to restructure packets. This speeds communication between the source and destination and substantially reduces the commitment of processing and storage resources.

A method, apparatus, and computer program product for processing a chain linked transport control channel program in an I/O processing system is provided. The method includes receiving a first command message at a control unit specifying a first predetermined sequence number for performing a first set of one or more commands as part of an I/O operation. The method further includes receiving a second command message specifying a second predetermined sequence number for performing a second set of one or more commands as part of the I/O operation. The method also includes comparing the sequence numbers to a next expected predetermined sequence number to determine an order of performing the commands. The method additionally includes executing the commands in the determined order to perform the I/O operation.

A strategic method for process control wherein the method includes, for a predetermined process juncture, the steps of: (A) defining an interconnection cell having associated therewith (i) at least one set of input data or at least one set of process control parameters, and (ii) at least one set of output data; (B) assigning at least one boundary value to at least one set of the sets associated with the defined interconnection cell; (C) using the assigned at least one boundary value, forming a plurality of discrete respective set combinations, and (D) for the interconnection cell, processing data from the plurality of respective formed set combinations into respective corresponding data record clusters.

The strategic method for process control is a continuation-in-part of a Knowledge-Engineering Protocol-Suite, (U.S. patent application Ser. No. 09/588,681 filed on 7 Jun. 2000) incorporated herein by reference, that generally includes methods and systems, apparatus for search-space organizational validation, and appurtenances for use therewith. The protocol-suite includes a search-space organizational validation method for synergistically combining knowledge bases of disparate resolution data-sets, such as by actual or simulated integrating of lower resolution expert-experience based model-like templates to higher resolution empirical data-capture dense quantitative search-spaces. The protocol-suite includes facile algorithmic tools for use with the method.

In a transmitter (2001), when generating a transmission frame having no limitation to a window size, a batch-transmission-end flag generating circuit (2004) and a sequence number generating circuit (2005) respectively adds a batch-transmission-end flag and a sequence number to the transmission frame. In a receiver, if an omission of a sequence number is detected as a result of analyzing sequence numbers of frames having received from the transmitter (2001), retransmission request is made when receiving a frame whose batch-transmission-end flag indicates the end. In this way, retransmission is possible in data transmission using UI frames, and the communication efficiency can be improved.

A data packet is conveyed between servers connected to a packet network. A first server securely distributes a list of distinct numbers to one or more authorized receiving servers. Subsequently, upon receiving a packet to be transferred, the first server selects an unused number from the number list and writes the number into the packet before routing the packet to one or more of the authorized receiving servers. Upon receipt of the packet, an authorized receiving server checks that the number included in the packet is valid in that it is both contained in the latest number list and has not already been used in another packet. If valid, the receiving server determines a sequence number representative of the position of the number in the latest number list and sends an acknowledgement message to the originating server, including the determined sequence number. The originating server checks the sequence number to verify the authenticity of the acknowledgement message, re-sending the packet if invalidly acknowledged.

This invention discloses an encryption and decryption method for data in hardware. It consists of several steps: obtain the key by reading data from the ROM; obtain the original key by the expending mechanism; operate the logic address and the sequence number and shift the result to get the address key; encryption on the address key by the original key to form a key flow; encryption and decryption on transmitting data. This invention could enhance data security on storage device and protect them from missing.

The invention discloses an intelligent home system, an information encryption method, an information encryption device and a terminal, and belongs to the technical field of computer application. The intelligent home system comprises the terminal, a gateway and home equipment, wherein when generating control information according to a triggered control operation, the terminal obtains a key sequencenumber sent by the gateway, selects a key from stored key sequences according to the key sequence number to obtain an encryption key, encrypts the control information, and sends the encrypted controlinformation to the gateway; and, when receiving the encrypted information sent by the terminal, the gateway selects a decryption key according to the sent key sequence number, decrypts the encryptedinformation to obtain the control information, and sends the control information to the related home equipment, so that the home equipment works according to the control information. The invention further provides the information encryption device and the terminal. By means of the intelligent home system, the information encryption method, the information encryption device and the terminal disclosed by the invention, communication security in a local area network can be ensured; and the security of controlling the home equipment through the local area network can be improved.

The present invention is directed blockchain systems and censuses protocols that adopt a pipelining technique. The systems and protocols involve a committee of consensus nodes that include proposer nodes and voter nodes. Each proposer node can send two or more unnotarized proposals to the voter nodes, and the voter nodes can vote on an unnotarized proposal when they have the same freshest notarized chain or block. A sequence number is provided to facilitate the operation of the systems and protocols. The sequence number can be used to determine the freshest notarized chain or block and the finalized chain and switch proposer node. The systems and protocols also provide other features such as chain syncer, committee election scheme, and committee reconfiguration. The systems and protocols further provide a simple finalization process and thus have a low finalization time.

A Lock Free and Wait Free method of the appearance of an atomic double word compare and swap (DCAS) operation on a pointer and ABA avoidance sequence number pair of words while using atomic single word compare and swap (CAS) instructions. To perform this function an area of memory is used by this invention and described as a protected pointer. The protected pointer consists of three words, comprising of: a) a pointer to a memory location, such as a node in linked list, together with b) an ABA avoidance sequence number, and combined together with a third word containing c) a specially crafted hash code derived from the pointer and the ABA avoidance sequence number. The three words together are referred to as a three word protected pointer and are used by this invention for implementing a Lock-Free and Wait-Free method of simulating DCAS using three CAS instructions. The specially crafted hash code, when used in a manner as described in this invention, enable competing threads in a multithreaded environment to advance a partially completed method of the appearance of an atomic double word compare and swap (DCAS) operation on a pointer and ABA avoidance sequence number pair of words while using atomic single word compare and swap (CAS) instructions as partially executed by a different thread. The ability for any thread to complete a partially completed appearance of DCAS provides for wait free operation.

The invention discloses an identifier generation method and device, equipment and a storage medium, and belongs to the technical field of computers. The method comprises the steps of obtaining a current timestamp in response to an identifier generation request; and determining a target identifier generator from the at least two identifier generators according to the time sequence relationship between the historical timestamp for generating the previous identifier and the current timestamp; based on the target identifier generator, generating an identifier according to the current timestamp, the generator serial number, the equipment identifier and the self-increasing serial number; when a clock callback condition occurs, enabling a identifier generation process to switch the target identifier generator for generating IDs until a clock returns to normal. The generator serial number is the serial number of the target identifier generator in the at least two identifier generators, and theserial numbers of the identifier generators are different. Uniqueness of the generated ID when the target identifier generator is switched is ensured. Reliability of ID generation is improved.

Method and system for managing asynchronous event notifications (AENs) including comparing an AEN sequence number at a shared memory location with an AEN sequence number at a local memory location controlled by a application; acquiring an AEN from the shared memory, if the sequence number of the AEN in the local memory is different from the sequence number of the AEN in shared memory; determining if a version number of the AEN is current; and generating an AEN if the version number is not current, wherein the generated AEN allows other applications to update AEN version numbers. The system includes firmware code executed in an adapter; an adapter driver executed on a host computing system stores the AENs in a memory buffer; and a plurality of applications that use a shared memory where AENs and a version number associated with the AENs are stored.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing view change. One of the methods is to be implemented on a blockchain maintained a number(N) of nodes and performed by a first node of the N nodes that is in a view change protocol. The method includes: obtaining, respectively from at least Q second nodes of the N nodes, at least Q firstmessages each comprising (1) a consistent current view known to the second node indicating a primary node designated among the N nodes and (2) a consistent current sequence number known to the secondnode, the current sequence number associated with a latest transaction or a latest block, wherein the current sequence number is larger than a first sequence number known to the first node; and responsive to obtaining the at least Q first messages, ending the view change protocol.

The embodiment of the invention discloses a software serial number distribution verification method and device based on a block chain. The method comprises the following steps: creating an intelligentcontract and deploying the intelligent contract to the block chain, publishing software and updating the intelligent contract, distributing user public and private key pairs and authorizing registration, downloading, installing and running corresponding versions of software, and calling the intelligent contract through built-in functions of the software to realize distribution verification of theuser public and private key pairs. The integrity of the software is checked in the smart contract of the block chain, so that the software cracking difficulty is improved, the management cost of creating, distributing and verifying the software serial number by a software developer is effectively reduced, and the credibility of verifying the genuine version of the software serial number by a software user can also be improved.

The embodiment of the invention discloses a method and a device for automatically registering an equipment serial number, a computer device and a storage medium, and the method comprises the steps: analyzing an equipment registration request if the equipment registration request is received, so as to obtain the equipment information of current equipment; controlling the proxy server to generate corresponding encryption information according to the received equipment information, first preset verification information and a preset encryption rule according to the equipment registration request,and sending the corresponding encryption information to a registration server; controlling the registration server to decrypt the encrypted information according to a preset decryption rule to obtaincorresponding equipment information and first preset verification information, and detecting whether the first preset verification information is matched with second preset verification information inthe registration server or not; and if so, controlling the registration server to complete registration of the equipment. According to the invention, perfection of the equipment information can be ensured, automatic registration of the equipment can be completed rapidly and safely, and the user experience is improved.

The invention is applicable to the technical field of self-service transaction, and provides a self-service transaction method and system, a server and a mobile terminal. The self-service transactionmethod includes the following steps: a background server receives a connection request sent by a mobile terminal; the background server receives the current geographical location of a user to be transacted and the equipment identification number of a self-service transaction terminal to be transacted sent by the mobile terminal; the background server confirms whether the user and the self-servicetransaction terminal are in the same position according to the current geographical location and the equipment identification number; if the user and the self-service transaction terminal are in the same position, the background server generates a transaction sequence code according to the equipment identification number and the valid time; and the background server sends the transaction sequencenumber to the mobile terminal and the self-service transaction terminal so the user can conduct a transaction without card on the self-service transaction terminal according to the transaction sequence code. Through the method, the security of transaction is improved, and the cost of transaction agencies is reduced.