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Innovative Authentication Method for IoT Devices
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DOI：10.23919/empc44848.2019.8951767.png)
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Abstract
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This work provides an innovative method for a very important cryptographic function used in securing the communications in an IoT network: authenticating a device based on the identity obtained from a unique physical characteristic. An authentication procedure requires a secret key that is usually protected by an anti-tamper mechanism. IoT devices can use tamper detection circuits to protect secret data involved in cryptographic functions as: encryption, decryption, authentication, key exchange, etc. These functions are implemented in electronic security circuits. The tamper detection circuit is independently powered by a battery in order to permanently protect the secret data, even if the equipment is not supplied with power. This paper presents a solution to obtain a unique key from the probing process of the conductive mesh that protects the electronic security circuit.
Keywords:
mesh
anti-tamper
authentication
security
criptography
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