A Method For Verifying Integrity And Authenticating Digital Media

by Martin Harran, William Farrelly & Kevin Curran

Due to their massive popularity, image files, especially JPEG, offer high potential as carriers of other information. Much of the work to date on this has focused on steganographic ways of hiding information using least significant bit techniques but we believe that the findings in this project have exposed other ways of doing this. We demonstrate that a digital certificate relating to an image file can be inserted inside that image file along with accompanying metadata containing references to the issuing company. Notwithstanding variations between devices and across operating systems and applications, a JPEG file holds its structure very well. Where changes do take place, this is generally in the metadata area and does not affect the encoded image data which is the heart of the file and the part that needs to be verifiable. References to the issuing company can be inserted into the metadata for the file. There is an advantage of having the digital certificate as an integral part of the file to which it applies and consequently travelling with the file. We ultimately prove that the metadata within a file offers the potential to include data that can be used to prove integrity, authenticity and provenance of the digital content within the file.

Read More

Leave a Comment

Latest Videos

Throughout the past few years, the way employees communicate with each other has changed forever.

69% of employees note that the number of business applications they use at work has increased during the pandemic.

Desk phones, LAN lines and even VOIP have become technologies of the past workplace environment as employees turn to cloud applications on their computers and phones to collaborate with each other in today’s workplace environment.

Whether it’s conversations in Teams, file uploads in Slack chats, or confidential documents stored in Office 365, the amount of data stored and where it is stored, is growing quicker than IT and systems administrators can keep up with.

Corporate investigators and eDiscovery professionals need to seamlessly collect relevant data from cloud sources and accelerate the time to investigative and discovery review.

With the latest in Cellebrite’s remote collection suite of capabilities, investigators and legal professionals can benefit from secure collection with targeted capabilities for the most used workplace applications.

Join Monica Harris, Product Business Manager, as she showcases how investigators can:

- Manage multiple cloud collections through a web interface
- Cull data prior to collection to save time and money by gaining these valuable insights of the data available
- Collect data from the fastest growing cloud collaboration applications like Office365, Google Workspace, Slack and Box
- Login to a single source for workplace app collection without logging into every app and pulling data from multiple sources for every employee
- Utilize a single unified collection workflow for computer, mobile and workplace cloud applications without the need to purchase multiple tools for different types of collections – a solution unique to Cellebrite’s enterprise solution capabilities

Throughout the past few years, the way employees communicate with each other has changed forever.

69% of employees note that the number of business applications they use at work has increased during the pandemic.

Desk phones, LAN lines and even VOIP have become technologies of the past workplace environment as employees turn to cloud applications on their computers and phones to collaborate with each other in today’s workplace environment.

Whether it’s conversations in Teams, file uploads in Slack chats, or confidential documents stored in Office 365, the amount of data stored and where it is stored, is growing quicker than IT and systems administrators can keep up with.

Corporate investigators and eDiscovery professionals need to seamlessly collect relevant data from cloud sources and accelerate the time to investigative and discovery review.

With the latest in Cellebrite’s remote collection suite of capabilities, investigators and legal professionals can benefit from secure collection with targeted capabilities for the most used workplace applications.

Join Monica Harris, Product Business Manager, as she showcases how investigators can:

- Manage multiple cloud collections through a web interface
- Cull data prior to collection to save time and money by gaining these valuable insights of the data available
- Collect data from the fastest growing cloud collaboration applications like Office365, Google Workspace, Slack and Box
- Login to a single source for workplace app collection without logging into every app and pulling data from multiple sources for every employee
- Utilize a single unified collection workflow for computer, mobile and workplace cloud applications without the need to purchase multiple tools for different types of collections – a solution unique to Cellebrite’s enterprise solution capabilities

YouTube Video UCQajlJPesqmyWJDN52AZI4Q_g6nTjfEMnsA

Tips And Tricks Data Collection For Cloud Workplace Applications

Forensic Focus 8 hours ago

In this episode of the Forensic Focus podcast, Si and Desi explore the cutting-edge technology of deepfake videos and image manipulation. In addition to discussing the latest technological developments and efforts being made to detect manipulated media, they also examine the associated legal and ethical implications.

Show notes:

Boris Johnson image - https://www.theguardian.com/politics/2023/jan/10/spot-the-difference-boris-johnson-appears-scrubbed-from-photo-posted-by-grant-shapps

Deep Fake Neighbour Wars - https://m.imdb.com/title/tt21371376/

Stalin image - https://www.history.com/news/josef-stalin-great-purge-photo-retouching

Nvidia eye contact AI - https://www.polygon.com/23571376/nvidia-broadcast-eye-contact-ai and https://www.youtube.com/watch?v=xl87WTDrReo

Birthday problem - https://en.wikipedia.org/wiki/Birthday_problem

Same frightening woman in AI images - https://petapixel.com/2022/09/09/the-same-frightening-woman-keeps-appearing-in-ai-generated-images/

Inherent mysogeny of AI portraits - https://www.theguardian.com/us-news/2022/dec/09/lensa-ai-portraits-misogyny

Midjourney - https://www.midjourney.org/

Deepfake porn legality - https://www.theverge.com/2022/11/25/23477548/uk-deepfake-porn-illegal-offence-online-safety-bill-proposal and https://www.technologyreview.com/2021/02/12/1018222/deepfake-revenge-porn-coming-ban/

AIATSIS - https://aiatsis.gov.au/cultural-sensitivity

Fake tiger porn story - https://www.dailydot.com/unclick/tiger-porn-britain-law/

Group photo with no blinking - https://www.countrylife.co.uk/comment-opinion/curious-questions-group-photo-179102

Emma Watson deefake audio - https://www.thetimes.co.uk/article/ai-4chan-emma-watson-mein-kampf-elevenlabs-9wghsmt9c

Domestika - https://www.domestika.org/en/courses/981-introduction-to-interviewing-the-art-of-conversation

Investigative Interviewing - https://www.amazon.co.uk/dp/0199681899?ref=ppx_pop_mob_ap_share

Forensic Focus events calendar - https://www.forensicfocus.com/events/

Si Twitter - https://twitter.com/si_biles

In this episode of the Forensic Focus podcast, Si and Desi explore the cutting-edge technology of deepfake videos and image manipulation. In addition to discussing the latest technological developments and efforts being made to detect manipulated media, they also examine the associated legal and ethical implications.

Show notes:

Boris Johnson image - https://www.theguardian.com/politics/2023/jan/10/spot-the-difference-boris-johnson-appears-scrubbed-from-photo-posted-by-grant-shapps

Deep Fake Neighbour Wars - https://m.imdb.com/title/tt21371376/

Stalin image - https://www.history.com/news/josef-stalin-great-purge-photo-retouching

Nvidia eye contact AI - https://www.polygon.com/23571376/nvidia-broadcast-eye-contact-ai and https://www.youtube.com/watch?v=xl87WTDrReo

Birthday problem - https://en.wikipedia.org/wiki/Birthday_problem

Same frightening woman in AI images - https://petapixel.com/2022/09/09/the-same-frightening-woman-keeps-appearing-in-ai-generated-images/

Inherent mysogeny of AI portraits - https://www.theguardian.com/us-news/2022/dec/09/lensa-ai-portraits-misogyny

Midjourney - https://www.midjourney.org/

Deepfake porn legality - https://www.theverge.com/2022/11/25/23477548/uk-deepfake-porn-illegal-offence-online-safety-bill-proposal and https://www.technologyreview.com/2021/02/12/1018222/deepfake-revenge-porn-coming-ban/

AIATSIS - https://aiatsis.gov.au/cultural-sensitivity

Fake tiger porn story - https://www.dailydot.com/unclick/tiger-porn-britain-law/

Group photo with no blinking - https://www.countrylife.co.uk/comment-opinion/curious-questions-group-photo-179102

Emma Watson deefake audio - https://www.thetimes.co.uk/article/ai-4chan-emma-watson-mein-kampf-elevenlabs-9wghsmt9c

Domestika - https://www.domestika.org/en/courses/981-introduction-to-interviewing-the-art-of-conversation

Investigative Interviewing - https://www.amazon.co.uk/dp/0199681899?ref=ppx_pop_mob_ap_share

Forensic Focus events calendar - https://www.forensicfocus.com/events/

Si Twitter - https://twitter.com/si_biles

YouTube Video UCQajlJPesqmyWJDN52AZI4Q_i41eg24YGZg

Deepfake Videos And Altered Images - A Challenge For Digital Forensics?

Forensic Focus 13th February 2023 10:30 am

This error message is only visible to WordPress admins

Important: No API Key Entered.

Many features are not available without adding an API Key. Please go to the YouTube Feed settings page to add an API key after following these instructions.

Latest Articles

Share to...