Abstract: A device stores a first portion of a database, which is distributed across communication devices of a network, and to authenticate a first interaction with a second device: sends a first ID to the second device to authenticate itself with the second device; receives a second ID from the second device; retrieve, using the second ID, a public key associated with one of the first portion of the database or a second portion of the database stored in a third device, which has a third address that is numerically within a threshold value of a first address of the device; and verify, based on a permission stored in relation to the public key, that the second device is authorized to engage in the first interaction with the device.

Abstract: An endpoint device includes a processing device to generate a dynamic salt via combination of a secret, shared with a second endpoint device, with profile information associated with the endpoint device. The device further generates a digest via a hash, using the dynamic salt, of a previous message sent to the second endpoint device, and calculates parity information associated with the plaintext data. The device is further to generate, using a stream cipher, ciphertext data (that is verifiable by the second endpoint device) via encryption of a combination of the plaintext data, the parity information, and the digest. A communication interface is coupled to the processing device, wherein the communication interface is adapted to transmit the ciphertext data to the second endpoint device.

Abstract: A distributed ledger server includes a memory to store a database of network locations associated with registered network devices, the network locations each indexed against a public key and a hardware fingerprint. A processing device is coupled to the memory and is to: receive a request from a first network device to look up a public key and a second hardware fingerprint for a second network device with which the first network device requests to communicate; authenticate the first network device based on at least the network location of the first network device and as having previously registered; retrieve the public key and the second hardware fingerprint that are indexed in association with the second network device; and respond, to the request to the first network device upon successful authentication of the first network device, with the public key and the second hardware fingerprint.

Abstract: A device stores a first portion of a database, which is distributed across communication devices of a network, and to authenticate a first interaction with a second device: sends a first ID to the second device to authenticate itself with the second device; receives a second ID from the second device; retrieve, using the second ID, a public key associated with one of the first portion of the database or a second portion of the database stored in a third device, which has a third address that is numerically within a threshold value of a first address of the device; and verify, based on a permission stored in relation to the public key, that the second device is authorized to engage in the first interaction with the device.