Matteo Signorini, PhD

Matteo Signorini, PhD

Nokia Bell Labs Researcher

Patents

Blockchain-based electronic transfer method and network

September 19, 2018

PIANESE FABIO [FR]; SIGNORINI MATTÉO [FR], EP3376452 (A1),

A method of maintaining a transaction database in an electronic transfer network, the method improving privacy of the network by making it possible to discard older transactions by enforcing demurrage, the method comprising: verifying, the value of an input $N(t_g)$ of a new transaction is equal to the value of the output $M(t_a)$ it references, multiplied once by a demurrage rate $r$ for every block between the past block $B_x$ storing the past transaction $(t_a)$ whose output $M(t_a)$ is referenced and the new block $(B_z)$:

Blockchain-based distributed credit method

August 23, 2018

WAISBARD EREZ [IL]; SIGNORINI MATTEO [FR]; DI PIETRO ROBERTO [FR], WO2018149706 (A1),

A network of connected devices share a ledger of payment transactions between them under the form of a standard payment blockchain. A specific obligation blockchain is added to the network, also shared by the connected devices, and a link is made between the standard payment blockchain and the specific obligation blockchain, to reflect payments made in relation to obligations. A distributed credit method is built on top of this infrastructure.

Blockchain-based authentication method and system

August 16, 2018

SIGNORINI MATTEO [FR]; DI PIETRO ROBERTO [FR]; KANOUN WAEL [FR], WO2018146113 (A1),

A method and system of authenticating a device within a network of connected devices that share a ledger of transactions between them under the form of exchanged blockchain messages and comprising: computing a PoK chain based on the enhanced blockchain, receiving an authentication request from an application or a device, the authentication request including one or more PoKs, retrieving from the PoK database the PoK chain corresponding to the application or device identified in the authentication request; computing a PoK based on the PoK chain retrieved from the PoK database, comparing it with the PoK included in the authentication request, and if they match, validating the authentication request.

System and method for interacting devices from different islands of trust

August 15, 2018

SIGNORINI MATTÉO [FR]; WAISBARD EREZ [IL]; DI PIETRO ROBERTO [FR] , EP3361433 (A1),

A system and method of interacting a first device in a first Island of Trust belonging to a first organization, such Island of Trust comprising at least a first backend, with a second device in a second Island of Trust belonging to a second organization, such Island of Trust comprising at least a second backend. First and second backends are connected to a cloud, and may read/write a payment blockchain and an obligation blockchain. The combined specific obligation blockchain with standard payment blockchain allows devices to commit to the ToUs for their respective organizations in a tamper evident distributed manner.

Blockchain-based security threat detection method and system

February 22, 2018

SIGNORINI MATTEO [FR]; DI PIETRO ROBERTO [FR]; KANOUN WAEL [FR], WO2018033309 (A1),

A method and system of detecting a security threat within a network of connected devices that share a ledger of transactions between them under the form of exchanged blockchain messages. Enhanced blockchain messages are built by adding all forked chains to the blockchain messages. Forked chains in such enhanced blockchains are then inspected to detect any anomaly. When an anomaly is detected in a forked chain, all transactions of the ledger in the forked chain and the blockchain message leading up to the network attack entry point are reviewed to identify the source of the security threat.

System and method for interacting devices from different islands of trust

February 01, 2016

SIGNORINI MATTEO [IT]; DI PIETRO ROBERTO [IT]; LOMBARDI FLAVIO [IT]; DAZA VANESA [ES] , ES2558078 (A1),

Dispositivo electrónico portátil de moneda para realizar transacciones monetarias entre un usuario y un vendedor, que comprende un elemento de moneda provisto de un selector de moneda para realizar la selección de moneda o monedas a partir de una solicitud del vendedor, unos registros de entradas de función destinados a ser seleccionados en función de la selección de moneda o monedas, una función de cálculo de una moneda que a partir de los valores de registros de entrada proporciona una salida de función, unos registros de reconstrucción de salida de función, un reconstructor de monedas que a partir de la salida de función y los registros de reconstrucción de salida de función puede reconstruir un valor de moneda original, en el que la función es una función física no clonable borrable de una sola lectura, de modo que no se puede utilizar dos veces la misma moneda. La invención también se refiere a un procedimiento que emplea a este dispositivo.