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A Comparison Analysis of Saved Snapchat Video Files on Androids vs iPhones.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	A Comparison Analysis of Saved Snapchat Video Files on Androids vs iPhones./
作者:	Malley, Angela Rae.
面頁冊數:	1 online resource (72 pages)
附註:	Source: Masters Abstracts International, Volume: 82-12.
Contained By:	Masters Abstracts International82-12.
標題:	Information science. -
電子資源:	click for full text (PQDT)
ISBN:	9798505545607

A Comparison Analysis of Saved Snapchat Video Files on Androids vs iPhones.
Malley, Angela Rae.

A Comparison Analysis of Saved Snapchat Video Files on Androids vs iPhones. - 1 online resource (72 pages)

Source: Masters Abstracts International, Volume: 82-12.

Thesis (M.S.)--University of Colorado at Denver, 2021.

Includes bibliographical references

This thesis study analyzes the similarities and differences between video files saved via the Snapchat application on Android and Apple iPhones. With the rise in common use of social media platforms comes a rise in evidence of interest created within these applications. Understanding how these video files are saved as far as file structure, format and the data that each application stores will help with future authentication of video files created via Snapchat. Snapchat video files were created, saved, and transferred via several different methods. The Android Snapchat video files were transferred via Dropbox, Gmail and MMS message to the iPhone. These video files were compared to one another and then compared to the files originating on the iPhone. The Snapchat video files created on the iPhone were transferred via Dropbox, Gmail and MMS message to the Android. These video files were compared to one another and then compared to the files originating on the Android. The analysis of the Android Snapchat video files showed several notable results. The video files transferred via Dropbox and Gmail showed no changes when compared to the original video files extracted from the Android, and the video files transferred via MMS message and extracted from the iPhone showed heavy recompression. The video files transferred via MMS message and extracted from the iPhone also showed audio and video stream hash value mismatches, meaning both the audio and video of these files was recompressed. The metadata of the original Android Snapchat video files showed "Snap Audio" and "Snap Video," which directly relates to the originating application, Snapchat. The videos transferred via MMS message and extracted from the iPhone showed "Android Version 10," but no longer showed "Snap" in the metadata, which directly linked them to the Android, but not the Snapchat application. The audio samples of the files transferred via MMS message and extracted from the iPhone showed only a minor decrease from the original Android Snapchat files even though the recompression was great.The analysis of the iPhone Snapchat video files also showed several prominent results. The Snapchat video files transferred via Dropbox showed no changes when compared to the original iPhone Snapchat video files, whereas the video files transferred via Gmail and sent via MMS message and extracted from the Android showed heavy recompression. The video files transferred via Gmail showed audio stream hash value matches and video stream hash mismatches, meaning the audio remained unchanged, and the video was recompressed. The video files sent via MMS message and extracted from the Android showed audio and video stream mismatches, meaning both the audio and video was recompressed. The metadata of all the Snapchat video files originating from the iPhone showed "Core Media," which is associated with Apple, but there was no evidence directly correlating with the application, Snapchat. Additionally, the video files sent via MMS message and extracted from the Android showed "Apple Revision 1" and the video file transferred via Gmail displayed "Apple QuickTime." When analyzing the audio samples of the Snapchat video files originated on the iPhone, the video files transferred via Gmail showed no change even though these files were recompressed, and the video files sent via MMS message and extracted from the Android showed a significant decrease in audio samples.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798505545607Subjects--Topical Terms:

561178
Information science.
Subjects--Index Terms:

Digital forensicsIndex Terms--Genre/Form:

554714
Electronic books.

A Comparison Analysis of Saved Snapchat Video Files on Androids vs iPhones.
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520 $a This thesis study analyzes the similarities and differences between video files saved via the Snapchat application on Android and Apple iPhones. With the rise in common use of social media platforms comes a rise in evidence of interest created within these applications. Understanding how these video files are saved as far as file structure, format and the data that each application stores will help with future authentication of video files created via Snapchat. Snapchat video files were created, saved, and transferred via several different methods. The Android Snapchat video files were transferred via Dropbox, Gmail and MMS message to the iPhone. These video files were compared to one another and then compared to the files originating on the iPhone. The Snapchat video files created on the iPhone were transferred via Dropbox, Gmail and MMS message to the Android. These video files were compared to one another and then compared to the files originating on the Android. The analysis of the Android Snapchat video files showed several notable results. The video files transferred via Dropbox and Gmail showed no changes when compared to the original video files extracted from the Android, and the video files transferred via MMS message and extracted from the iPhone showed heavy recompression. The video files transferred via MMS message and extracted from the iPhone also showed audio and video stream hash value mismatches, meaning both the audio and video of these files was recompressed. The metadata of the original Android Snapchat video files showed "Snap Audio" and "Snap Video," which directly relates to the originating application, Snapchat. The videos transferred via MMS message and extracted from the iPhone showed "Android Version 10," but no longer showed "Snap" in the metadata, which directly linked them to the Android, but not the Snapchat application. The audio samples of the files transferred via MMS message and extracted from the iPhone showed only a minor decrease from the original Android Snapchat files even though the recompression was great.The analysis of the iPhone Snapchat video files also showed several prominent results. The Snapchat video files transferred via Dropbox showed no changes when compared to the original iPhone Snapchat video files, whereas the video files transferred via Gmail and sent via MMS message and extracted from the Android showed heavy recompression. The video files transferred via Gmail showed audio stream hash value matches and video stream hash mismatches, meaning the audio remained unchanged, and the video was recompressed. The video files sent via MMS message and extracted from the Android showed audio and video stream mismatches, meaning both the audio and video was recompressed. The metadata of all the Snapchat video files originating from the iPhone showed "Core Media," which is associated with Apple, but there was no evidence directly correlating with the application, Snapchat. Additionally, the video files sent via MMS message and extracted from the Android showed "Apple Revision 1" and the video file transferred via Gmail displayed "Apple QuickTime." When analyzing the audio samples of the Snapchat video files originated on the iPhone, the video files transferred via Gmail showed no change even though these files were recompressed, and the video files sent via MMS message and extracted from the Android showed a significant decrease in audio samples.
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653 $a Dropbox
653 $a MMS message
653 $a Apple QuickTime
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