Product Details
Efektivně zabezpečený inteligentní senzor
Created: 2022
Nosko Svetozár, Ing., Ph.D. (DCGM)
Homoliak Ivan, doc. Ing., Ph.D. (DITS)
Zemčík Pavel, prof. Dr. Ing., dr. h. c. (DCGM)
Honec Peter, Ing., Ph.D. (UAMT)
data authenticity, image acquisition, FPGA, ECDSA
Functional sample focuses on solving the problem of data security and
authenticity, and to achieve this goal, the data generated on the microcontroller
(and thus obtained from the sensor) must be cryptographically signed before
leaving the device. Until now, processing has been done without security at the
device (typically a HUB or cloud), where all microcontrollers are connected and
send the recorded data, posing a risk of misuse (e.g., data spoofing). This
is/was mainly due to insufficient computing and memory resources on the sensor
devices, so that cryptographic algorithms could not be processed efficiently and
quickly. Today, many new microcontrollers provide hardware acceleration for
cryptographic algorithms, thereby significantly improving device security.
A soft-core Microblaze processor is used, which can be easily instantiated,
modified, and synthesized in the Vivado Design Suite. After ECDSA implementation
in Microblaze, it can be concluded that it is possible to generate signatures
efficiently enough to be used in real-time applications. The use of the Merkel
tree reduced the amount of ECDSA signatures needed, which had a major impact on
the usability of the system. All the improvements made during the implementation
increased the performance by a factor of 15 while keeping the total size of the
software package below 64 KB.
Fakulta informačních technologií VUT v Brně, Božetěchova 2, 612 66 Brno, Q301