Blockchain distribution of computer data is disclosed. Computer data can comprise computer code, a computer code segment, a computer command, or a block of computer data, which can be employed by a device to patch software, change a device state, or synchronize data between devices. Blockchain distribution can provide benefits in a heterogeneous device environment, facilitate ad hoc device synchronization, and embody a distributed patch and communications network. Devices can receive a blockchain block from another device and, in some embodiments, enable other devices to access the block from the device. In some embodiments, devices can discard irrelevant blocks, however, an entire blockchain can be reconstructed where partial blockchains can be received from more than one device. Additionally, checkpoint blocks can enable devices to navigate the blockchain efficiently by skipping over known irrelevant blocks.

An embodiment is directed to a hardware circuit for encrypting and/or decrypting data transmitted between a processor and a memory. The circuit is situated between the processor and memory. The circuit includes a first interface communicatively coupled to the processor via a set of buses. The circuit also includes a second interface communicatively coupled to the memory. The circuit further includes hardware logic capable of executing an encryption operation on data transmitted between the processor and memory, without adding latency to data transmission speed between the processor and the memory. The hardware logic is configured to encrypt data received at the first interface from the processor, and transmit the encrypted data to the memory via the second interface. The hardware logic is also configured to decrypt data received at the second interface from the memory, and transmit the decrypted data to the processor via the first interface.

The present disclosure proposes methods, devices and systems for verification of blockchain transactions associated with a platform providing a plurality of services associated with a blockchain to one or more clients.

For a distributed and decentralized blockchain system using state function driven consensus protocol, the identity of the network node that is selected for building the next block is publicly known since it is determined by the blockchain state function at the current blockchain state. An administrator proxy contract protocol is proposed and implemented to protect the identity of the actual builder of the next block until the block is built and synchronized across the blockchain network. A notion of blockchain clock and a method to construct such a clock are introduced to replace computer system clock as a synchronized measure of blockchain state progression. A secured form of the blockchain state function is constructed based on the administrator proxy contract protocol and is used to against any blockchain state manipulation attempts by an adversary.

An enhanced device and method for anonymization also offering improved security properties of data exchanged bidirectionally between a client and a server in a communication network. A protocol in respect of data exchange between client and server which relies on a two-level third-party servers architecture as well as on a system for bidirectional communication between the client and the server through these two levels of third-party servers.

Computer-implemented methods, apparatuses, and systems are provided for synchronizing data based on a blockchain integrated station. The blockchain integrated station includes a central processing unit (CPU) and an intelligent network card. The intelligent network card includes a processor different from the CPU. The blockchain integrated station serves as a blockchain node of a blockchain network, and the intelligent network card is configured to inquiry other blockchain nodes of the blockchain network on whether there is to-be-synchronized block data; in response to determining that there is the to-be-synchronized block data, pull the to-be-synchronized block data from the other nodes of the blockchain network; and provide the to-be-synchronized block data to the CPU.

Communication of information relating to an event is described, where the information is contained in a data field. Methods of communicating and obtaining the information are described, together with suitable apparatus for performing these methods. One or more elements of information relating to the event are obtained and used to determine a cryptographic record of the event. A first set of places in the data field are filled by a combination of some or all of each of the elements together with time information associated with the event. The cryptographic record is used to fill a second set of places in the data record. On reception of a message including the data field, the data field can be resolved into the first set of places and the second set of places. The time information associated with the event can then be determined and used to establish the whole or partial elements of information that were combined with the time information to fill the first set of places. Whole elements of information are then established from any partial elements. When these elements are all established, they can be used to calculate cryptographic record data which can be matched against the cryptographic record from the second set of places in the data field to determine that the elements of information are correct.

Described is a data transmission method, comprising: a first terminal negotiating a shared key with a second terminal by means of a handshake message; and the first terminal transmitting application data to the second terminal by means of a content message, the content message being encrypted and decrypted by using the shared key, wherein the handshake message and the content message have the same message format, the message format comprises a message serial number and a message load, the message serial number comprises a key epoch identifier and a message seq identifier, and the key epoch identifier is characterized by bit information less than a first number of bits, and the message seq identifier is characterized by bit information less than a second number of bits.

Described is a data transmission method, comprising: a first terminal negotiating a shared key with a second terminal by means of a handshake message; and the first terminal transmitting application data to the second terminal by means of a content message, the content message being encrypted and decrypted by using the shared key, wherein the handshake message and the content message have the same message format, the message format comprises a message serial number and a message load, the message serial number comprises a key epoch identifier and a message seq identifier, and the key epoch identifier is characterized by bit information less than a first number of bits, and the message seq identifier is characterized by bit information less than a second number of bits.

A system that uses a computing device to encrypt data by obtaining multiple series of random numbers, and then time-correlating these series to form a series of composite elements. By selecting a section of the series of composite elements, the computing device can obtain a key for encrypting data.