Authors :
DUKUNDANE Nathascha; Dr Sanja Michael Mutongwa
Volume/Issue :
Volume 8 - 2023, Issue 2 - February
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3kHP8ds
DOI :
https://doi.org/10.5281/zenodo.7696110
Abstract :
This dissertation intended to develop a digital
forensic setup & data encryption, underpinning
Advanced Encryption Standard (AES) Algorithm in
Rwanda. It was guided by specific objectives which are to
identify common challenges faced by investigators in
maintaining the digital evidence’s integrity in digital
forensicsinvestigations, to review the existing solutions
used in securing digital evidence, to design a novel digital
forensic model that will help investigators in preserving
the integrity of evidence, and to simulate the newdigital
forensic and data encryption model. The total
population was 300 people and the sample size was 171.
Both primary and secondary data were used.
Questionnaires were sent to the respondents and collected
back. With thisinstrument, questions were being asked to
particular respondents. The findings have proven that
31.58% of respondents strongly agreed, 59.06% of
respondents agreed, 5.26% of respondents were notsure,
2.93% of respondents disagreed, and 1.17% of
respondents strongly disagreed that explosion of
complexity is one of the common challenges faced by
investigators in maintaining the digital evidence’s
integrity in digital forensics investigations. The findings
indicated that 36.26% of respondents strongly agreed,
while 63.74% agreed that back up of data is one of the
existing methods used in securing digital evidence.
Findings also revealed that 88.88% of respondents
strongly agreed, while 11.12% agreed that theuse strong
passwords is one of the existing methods used in securing
digital evidence. Lastly, 25.14% of respondents strongly
agreed, 63.74% of respondents agreed, 9.36% of
respondents were not sure, while 1.75% of respondents
disagreed that taking care when working remotely is one
of the existing methods used in securing digital evidence.
The findings related to the third objective of this study
have indicated that each block will be decrypted without
depending on other blocks hence making the processes
safer andlastly the encryption of blocks can happen in
parallel which will increase the performance of the
process. The decryption part ensures that each block is
decrypted independently. Evidence will be decrypted in
blocks. Evidence be decrypted if the user provides a
correct key which matches evidence file to be decrypted.
This is being emphasized basing on clear evidence from
respondent’s views during analysis of the findings. As
recommendations from the study. The research results
however revealed some areas that still need continuous
improvement. Thus , the research has given different
recommendations to different people who will intervene
in the use of this new forensic setup.
Keywords :
Digital Forensic; Encryption/Decryption; Advanced Encryption Standard (AES)
This dissertation intended to develop a digital
forensic setup & data encryption, underpinning
Advanced Encryption Standard (AES) Algorithm in
Rwanda. It was guided by specific objectives which are to
identify common challenges faced by investigators in
maintaining the digital evidence’s integrity in digital
forensicsinvestigations, to review the existing solutions
used in securing digital evidence, to design a novel digital
forensic model that will help investigators in preserving
the integrity of evidence, and to simulate the newdigital
forensic and data encryption model. The total
population was 300 people and the sample size was 171.
Both primary and secondary data were used.
Questionnaires were sent to the respondents and collected
back. With thisinstrument, questions were being asked to
particular respondents. The findings have proven that
31.58% of respondents strongly agreed, 59.06% of
respondents agreed, 5.26% of respondents were notsure,
2.93% of respondents disagreed, and 1.17% of
respondents strongly disagreed that explosion of
complexity is one of the common challenges faced by
investigators in maintaining the digital evidence’s
integrity in digital forensics investigations. The findings
indicated that 36.26% of respondents strongly agreed,
while 63.74% agreed that back up of data is one of the
existing methods used in securing digital evidence.
Findings also revealed that 88.88% of respondents
strongly agreed, while 11.12% agreed that theuse strong
passwords is one of the existing methods used in securing
digital evidence. Lastly, 25.14% of respondents strongly
agreed, 63.74% of respondents agreed, 9.36% of
respondents were not sure, while 1.75% of respondents
disagreed that taking care when working remotely is one
of the existing methods used in securing digital evidence.
The findings related to the third objective of this study
have indicated that each block will be decrypted without
depending on other blocks hence making the processes
safer andlastly the encryption of blocks can happen in
parallel which will increase the performance of the
process. The decryption part ensures that each block is
decrypted independently. Evidence will be decrypted in
blocks. Evidence be decrypted if the user provides a
correct key which matches evidence file to be decrypted.
This is being emphasized basing on clear evidence from
respondent’s views during analysis of the findings. As
recommendations from the study. The research results
however revealed some areas that still need continuous
improvement. Thus , the research has given different
recommendations to different people who will intervene
in the use of this new forensic setup.
Keywords :
Digital Forensic; Encryption/Decryption; Advanced Encryption Standard (AES)
