The present disclosure generally relates to an interface system and method of interfacing to generate data compatible with an external system in an oil and gas asset supply chain, and in particular to an interface and interface method for generating secure and verifiable data to prevent tampering, injection of unwanted data resulting from an unauthorized access along a supply chain. An interface generates and transforms data in an oil and gas supply chain for compatibility with external systems. Collected data is captured by an industrial control system sensor or data collector, and transferred to a secure intermediary hardware platform to interface with a software component. The collected data is then modified using a business rules engine to create enhanced data and events created from the enhanced data.

A method of providing a hash value for a piece of data is disclosed, where the hash value provides for a time-stamp for the piece of data upon verification, for limiting a risk of collisions between hash values. The method comprises collecting one or more root time-stamps for a root of a hash tree structure defining a hash function, wherein the root-time stamp is a root time-stamp from the past, determining whether a nonce may be received from a server, and upon failure to receive the nonce from the server, providing the hash value by a hash function of the root time-stamp and the piece of data, or upon success in receiving the nonce from the server, providing the hash value by the hash function of the root time-stamp, the piece of data and the nonce. An electronic device and a computer program are also disclosed.

A method and system for negotiating a secure device-to-device communications channel between a first computing device and a second computing device, wherein the first computing device is associated with a first user and the second computing device is associated with a second user. The method comprises receiving, at a server, a first connection request comprising first address data and a first cryptographic key associated with the first computing device, the first connection request being received over a first secure communications channel, and receiving, at the server, a second connection request comprising second address data and a second cryptographic key associated with the second computing device, the second connection request being received over a second secure communications channel.

In a communication system comprising a first network operatively coupled to a second network, wherein the first network comprises a first security edge protection proxy element operatively coupled to a second security edge protection proxy element of the second network; the method comprises configuring at least a given one of the first and second security edge protection proxy elements to apply application layer security to one or more information elements in a received message from a network function before sending the message to the other one of the first and second security edge protection proxy elements.

Systems, methods, and non-transitory computer-readable storage media for a non-replayable communication system are disclosed. A first device associated with a first user may have a public identity key and a corresponding private identity. The first device may register the first user with an authenticator by posting the public identity key to the authenticator. The first device may perform a key exchange with a second device associated with a second user, whereby the public identity key and a public session key are transmitted to the second device. During a communication session, the second device may transmit to the first device messages encrypted with the public identity key and/or the public session key. The first device can decrypt the messages with the private identity key and the private session key. The session keys may expire during or upon completion of the communication session.

A server receives a client's signing request comprising a hash value of data, the hash value being formed using a time-forwarded one-time signing key that comprises a time-forwarded index The server queues the signing request, pushes the hash value to a signature infrastructure entity at the time-forwarded time, and receives a time stamp in return. A client obtains a time stamp for each piece of a stream of pieces of data by collecting the pieces of data and deriving one-time signing keys of a one-time signing key hash chain, forming a stream of signing requests for the pieces of data by applying the one-time signing keys with time-forwarded indices for the respective piece of data to calculate hash values of the respective pieces of data, and transmitting the stream of signing requests comprising the hash values to a server for deriving time stamps for the pieces of data, respectively.

A method of communicating over a network between first and second endpoints, one being and the other being a server. The method comprises: establishing a first secure transport layer channel between the first and second endpoints, establishing a second secure transport layer channel between the first endpoint and a middlebox to which the first endpoint is to delegate processing of the traffic sent over the first secure transport layer channel; the first endpoint validating the middlebox via the respective second secure transport layer channel, and on condition of said validation sharing the encryption key of the first channel with the middlebox via the second secure transport layer channel; and causing the traffic sent over the channel to be routed via the middlebox. The method thereby enables the middlebox to process, in the clear, content of the traffic sent over the first channel.

Disclosed herein are systems and methods for a security gateway to process secure network sessions where there is a server certificate validation error. In various embodiments, varying security policies can be applied to the secure network sessions, including intercepting of network data, bypass of the security gateway, or termination of the secure sessions.

According to an example aspect of the present invention, there is provided a cryptoprocessor comprising physical unclonable function circuitry comprising at least one physical unclonable function, and at least one processing core configured to process a challenge received from outside the cryptoprocessor by at least deriving a response to the challenge by providing the challenge as input to the physical unclonable function circuitry, using the response as an encryption key to encrypt a second encryption key, and by causing the encrypted second encryption key to be provided to a party which issued the challenge.

A technique for rendering web content includes downloading a framework page from a framework server, the framework page including framework code which, when executed by a browser of a client machine, dynamically downloads a set of plugins from respective service providers. Each plugin includes its own plugin code configured to communicate with the respective service provider and with the framework code, to dynamically render web content specific to the service provider in the framework page running in the browser.