To make high-level copyright protection of transmission audio data possible. Audio data is sequentially transmitted to a reception side via a predetermined transmission channel for each unit audio data. Audio data to be transmitted is encrypted, and encryption information indicating that the audio data has been encrypted is added to the audio data. For example, the encryption information is added using a predetermined bit area of a channel status of each block that is configured every predetermined number of unit audio data pieces.

The invention provides a blockchain-implemented control method and corresponding system(s). The invention may control access to an internet-enabled resource such as an IoT device that is provided with computing capabilities enabling it to communicate with other computer-based resources and interact with a distributed ledger. In one embodiment, the invention provides a method for controlling the use of an internet-enabled resource comprising providing a first blockchain transaction comprising at least one output which is redeemable only by provision of at least: i) a secret value selected by a user; and ii) a signature associated with a resource provider; sending use-related information to the resource; generating a second blockchain transaction requesting at least the secret value; and modifying the second blockchain transaction to include the secret value.

Provided is an analysis system including a memory acquisition unit that is configured to acquire at least part of data stored in a memory unit in an information communication apparatus including a computing unit and the memory unit; a communication processing unit that is configured to instruct the memory acquisition unit to acquire data stored in the memory unit when determining that key data including an encryption key for cryptographic communication protocol are stored in the memory unit; and a cryptanalysis unit that is configured to extract one or more key data candidates that are candidates of the key data, from the stored in the memory unit, and extract, from one or more of the key data candidates, correct key data that enables to decrypt correctly the encrypted communication data. The communication processing unit is further configured to execute specific processing according to the decrypted communication data.

Provided is an analysis system including a memory acquisition unit that is configured to acquire at least part of data stored in a memory unit in an information communication apparatus including a computing unit and the memory unit; a communication processing unit that is configured to instruct the memory acquisition unit to acquire data stored in the memory unit when determining that key data including an encryption key for cryptographic communication protocol are stored in the memory unit; and a cryptanalysis unit that is configured to extract one or more key data candidates that are candidates of the key data, from the stored in the memory unit, and extract, from one or more of the key data candidates, correct key data that enables to decrypt correctly the encrypted communication data. The communication processing unit is further configured to execute specific processing according to the decrypted communication data.

Provided is an analysis system configured to obtain an encryption key for encryption communication between an information communication apparatus and a communication network, from memory space provided in the information communication apparatus. The analysis system including a processing circuitry configured to function as: a memory acquisition unit that is configured to acquire at least part of data stored in a memory unit in an information communication apparatus including a computing unit and the memory unit; and a communication processing unit that is configured to determine whether key data including an encryption key used for encryption processing in a cryptographic communication protocol are stored in the memory unit, based on communication data transmitted and received in accordance with the cryptographic communication protocol between the information communication apparatus and a communication network, and instruct the memory acquisition unit to acquire data stored in the memory unit, based on the determination result.

Provided is an analysis system configured to obtain an encryption key for encryption communication between an information communication apparatus and a communication network, from memory space provided in the information communication apparatus. The analysis system including a processing circuitry configured to function as: a memory acquisition unit that is configured to acquire at least part of data stored in a memory unit in an information communication apparatus including a computing unit and the memory unit; and a communication processing unit that is configured to determine whether key data including an encryption key used for encryption processing in a cryptographic communication protocol are stored in the memory unit, based on communication data transmitted and received in accordance with the cryptographic communication protocol between the information communication apparatus and a communication network, and instruct the memory acquisition unit to acquire data stored in the memory unit, based on the determination result.

A data determination apparatus of the present invention includes a state transition model storage unit to store a state transition model representing a state transition, a state management unit to hold an operating state of an own apparatus based on the state transition model, a communication permission list storage unit to store, as a communication permission list, communication permitted data whose communications are permitted in respective operating states, a communication unit to obtain communication determination data, and a determination unit to determine whether or not the communication determination data is communication permitted data whose communication has been permitted in a current operating state, using the current operating state and the communication permission list.

A data determination apparatus of the present invention includes a state transition model storage unit to store a state transition model representing a state transition, a state management unit to hold an operating state of an own apparatus based on the state transition model, a communication permission list storage unit to store, as a communication permission list, communication permitted data whose communications are permitted in respective operating states, a communication unit to obtain communication determination data, and a determination unit to determine whether or not the communication determination data is communication permitted data whose communication has been permitted in a current operating state, using the current operating state and the communication permission list.

A pattern detector circuit is provided in a security chip, wherein the pattern detector circuit monitors accesses of a plurality of configuration registers, each of the plurality of configuration registers having a corresponding address. In response to receiving from a host a predefined sequence of accesses of the plurality of configuration registers for one or more operations to the plurality of configuration registers, a processor in the pattern detector circuit determines a value indicative of a current version of a netlist for the security chip. The determined value is made available to be obtained by a read operation by the host at a specific configuration register address.

A method of providing secure ledger distribution for interbank settlement includes maintaining a first consensus layer in a mainchain among a plurality of nodes of the centralized computer system and a second consensus layer in a first private sidechain among at least one node of the centralized computer system and computer systems of at least a first sender bank and a first receiver bank, each of which have an account with the central bank. A first transaction is received from the computer system of the first sender bank as a first payment request. It is determined that the first transaction is valid and consensus is reached on a distributed ledger in the mainchain. A first finality proof for the first transaction is forwarded to the first private sidechain. The first transaction is added to a first private ledger accessible only within the first private sidechain.