Banca de DEFESA: Alexandre Henrique Radis

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : Alexandre Henrique Radis
DATE: 30/06/2023
TIME: 09:00
LOCAL: https://teams.microsoft.com/l/meetup-join/19%3a0a9998084fcc459f92b72fb6608767f7%40thread.tacv2/16869
TITLE:

Secure protocol for code injection into CubeCats

KEY WORDS:

Code Injection, CubeSat, Communications Security, FreeRTOS

PAGES: 43
BIG AREA: Engenharias
AREA: Engenharia Elétrica
SUMMARY:

A CubeSat-type satellite project starts with identifying your needs and continues with
its development, assembly, launch, operation and obsolescence. However, needs can change
over the lifecycle of the satellite, as with any project. In CubeSat-type satellites, the inclusion
of new services becomes a major access challenge, due to the physical impossibility of the
equipment.
Code injection is a solution that allows the inclusion of new services in a satellite after its
launch. The inclusion of new services in microcontrolled equipment presents several security
challenges, mainly in CubeSat-type satellites, which have restrictions on energy, communication,
processing, memory, among others. It is necessary to protect the microcontrolled
system against denial of service attacks, data breach, equipment deactivation and hijacking.
It is not possible to use techniques such as firewall, antivirus or artificial intelligence.
As the inclusion of new services in the microcontrollers means the inclusion of new
codes, and this means opening up a great opportunity for attacks. It is necessary to mitigate
these attacks. Thus, the work presents a proposal for the inclusion of new codes mitigating 

the possibility of effective attacks. This proposal comprises security measures, communication
protocols, the use of HMAC to ensure compliance and integrity of the new codes, and a
real-time operating system prepared for this challenge.
The work presents a study of the state of the art and a bibliographic reference on the
subject. The conceptual proposal follows, the methodology for implementing and testing
the concepts, results and conclusions obtained. Among the results obtained, it was possible
to observe the viability of the proposed measures, the defense of attempted injection
attacks of malformed or non-authentic codes and improvement in the execution of SHA3
for the MSP430FR5994. Where it was possible to conclude the effectiveness of the adopted
measures.

BANKING MEMBERS:
Presidente - 1141309 - JOAO JOSE COSTA GONDIM
Interno - 906.575.601-97 - DANIEL ALVES DA SILVA - UnB
Interno - 2556078 - GEORGES DANIEL AMVAME NZE
Externa à Instituição - JANAINA GONCALVES GUIMARAES - UFSC