In an example, transactions are secured between electronic circuits in a memory fabric. An electronic circuit may receive a transaction integrity key. The electronic circuit may compute a truncated message authentication code (MAC) using the received transaction integrity key and attach the truncated MAC to a security message header (SMH) of the transaction.

A data encryption device obtains at least one piece of data to be encrypted. The data encryption device calculates, for each particular piece of data of the at least one piece of data, a data-specific key corresponding to the particular piece of data, the data-specific key being calculated based on a prestored root key and a data identifier of the particular piece of data using a one-way function, where the one-way function is such that the root key is not uniquely derivable from the data-specific key using the one-way function. The data encryption device generates encrypted data corresponding to the particular piece of data by encrypting the particular piece of data using the data-specific key corresponding to the piece of data.

Systems and techniques are disclosed that allow for transfer of electronic assets between a first agent and a second agent while protecting the agents privacy using a decentralized transaction system.

An Internet of things (IoT) system, including a distributed system of virtual machines, includes at least one IoT platform system control engine, that includes a platform system control engine secure system space and a IoT platform system control engine user defined space, at least one network node device that includes a network node device secure system space and an IoT network node device user defined space, and at least one edge device that includes an edge device secure system space and an edge device user defined space, where the secure system space of the control engine, the network node device, and the edge device are each configured to be secured to prevent unauthorized access, and the user defined spaces of the platform system control engine, the network node device and the edge device each define a respective virtual machine.

Systems and Methods for encrypting and decrypting data in a dispersed storage network are disclosed. A data object may be encrypted using a data object specific encryption key, a container specific encryption key, a tenant account specific encryption key, or a time based encryption key. This specific, or more generally, secondary encryption key can be derived from a master or primary encryption key. Encryption key metadata pertaining to the master encryption key and the specific encryption key is also created and stored in the DSN. When reading an encrypted data object, the master encryption key can be retrieved and, along with the encryption key metadata, used to derive the specific encryption key. The specific encryption key can then be used to decrypt the encrypted data object to recover the data object.

Methods and systems for ensuring forward and backward secrecy in an encrypted communication protocol are provided herein. In some embodiments, a method for ensuring forward and backward secrecy in an encrypted communication protocol includes extracting, from a first device, a unique physically unclonable function (PUF) value of the first device based on structural properties of the first device, creating a PUF key pair including a first public key and a first private key that are generated based on the PUF value, deriving a first session key using the PUF key pair, deleting the first public key and the first private key, and sending a first encrypted communication to a second device using the derived session key.

The embodiments of the present invention provide a secure establishment method, system and device of a wireless local area network. The method includes: acquiring, by a UE, a first key; the first key is a shared key of the UE and a network element equipment in a mobile communication network accessed by the UE when implementing air interface security, or is derived according to the shared key; deriving, by the UE, according to the first key and a derivation parameter to acquire a derivation key; establishing, by the UE, according to the derivation key, a secure connection with a WLAN node acquiring a derivation key, wherein the derivation key acquired by the WLAN node is the same as the derivation key acquired by the UE.

Methods, systems and devices for generating an authentication key are provided. Two or more communications devices can generate an authentication key by monitoring a physical stimulus that is experienced by both devices (e.g., a common physical stimulus). Each device can then use an identical, predetermined algorithm to generate a common authentication key based on the stimulus. The devices can use the common authentication key to establish a secure network.

Techniques for distributing a symmetric key using the Domain Name System (DNS) are presented. The techniques can include receiving, at a first key server and from a first computer, a request for first information sufficient for the first computer to obtain, and second information sufficient for a second computer to obtain, a symmetric key for securing at least one communication sent from the first computer to the second computer, and providing, by the first key server and to the first computer, the first information and the second information, such that the first computer secures at least one communication sent from the first computer to the second computer using at least the symmetric key for securing at least one communication sent from the first computer to the second computer.

A first security context is established between a given user computing device and a first network computing device to enable a secure data connection between the given user computing device and the first network computing device. A second security context is established between the given user computing device and a second network computing device to enable a secure data connection between the given user computing device and the second network computing device simultaneous with the secure data connection between the given user computing device and the first network computing device. Establishment of the second security context includes the first network computing device sending the given user computing device a simultaneous secure data connection parameter useable by the given user computing device to establish the second security context with the second network computing device.