They need a covert channel which is a type of an application encrypting and hiding the secret and also erases its memory on the fly once it is terminated.. They need a covert channe
Trang 1The 1 st UTS-VNU Research School
Advanced Technologies for IoT Applications
Advanced Technologies for IoT Applications
Problem statesment - Alice and Bob
want to send a message to each other
They are certainly sure that Eve always
eavesdropping their network traffic
and hijacking their devices They need
a covert channel which is a type of an
application encrypting and hiding the
secret and also erases its memory on
the fly once it is terminated.
Problem statesment - Alice and Bob
want to send a message to each other
They are certainly sure that Eve always
eavesdropping their network traffic
and hijacking their devices They need
a covert channel which is a type of an
application encrypting and hiding the
secret and also erases its memory on
the fly once it is terminated.
Features
- The application works both on Android and iOS.
- The original image is deleted immediately after being sent, which prevents detecting the differences
between the original and the embedded pixel in a PNG image
The memory is initialized immediately after the cryptographic phase, which prevents itself from getting
analyzed by a forensic approach.
- The PNG image will be removed as soon as the conversation participants check it.
- No files are stored on the disk Also no messages are preserved in the runtime memory.
Features
- The application works both on Android and iOS.
- The original image is deleted immediately after being sent, which prevents detecting the differences
between the original and the embedded pixel in a PNG image
The memory is initialized immediately after the cryptographic phase, which prevents itself from getting
analyzed by a forensic approach.
- The PNG image will be removed as soon as the conversation participants check it.
- No files are stored on the disk Also no messages are preserved in the runtime memory.
References
[1] Luis von Ahn and Nicholas J Hopper Public-Key Steganography Submitted to
[2] Ross J Anderson and Fabien A P Petitcolas On The Limits of Steganography IEEE Journal of Selected Areas in Communications, 16(4) May 1998.
References
[1] Luis von Ahn and Nicholas J Hopper Public-Key Steganography Submitted to
[2] Ross J Anderson and Fabien A P Petitcolas On The Limits of Steganography IEEE Journal of Selected Areas in Communications, 16(4) May 1998.
Hidden data inside plain sight PNG covert by a multiple
platform chat sharing application
Hidden data inside plain sight PNG covert by a multiple
platform chat sharing application
NGUYEN TRI DUC - Ho Chi Minh
City University of Technology
NGUYEN TRI DUC - Ho Chi Minh
City University of Technology
Abstract
One year after the Snowden Leaks, we are unaware that we were under mass-surveillance from government or 3rd party organizations In addition, mobile devices were vulnerable to many threats at the moment In late 2014, there is no such chat application making use of Steganography to conceal a secret message in a plain sight The outcome application is a combination between secret algorithms in Steganography and a hard problem in Cryptography aiming to provide a user the most secure way to share the secret on a mobile platform Thanks for the outstanding of Kivy Frameworks; the application works on both iOS and Android.
Abstract
One year after the Snowden Leaks, we are unaware that we were under mass-surveillance from government or 3rd party organizations In addition, mobile devices were vulnerable to many threats at the moment In late 2014, there is no such chat application making use of Steganography to conceal a secret message in a plain sight The outcome application is a combination between secret algorithms in Steganography and a hard problem in Cryptography aiming to provide a user the most secure way to share the secret on a mobile platform Thanks for the outstanding of Kivy Frameworks; the application works on both iOS and Android.
Contributions
- Because of the discrete log problem in RSA and advantages of AES, a difficulty of decrypting the encrypted
message is guaranteed.
- The secret algorithm performing Steganography can embed the encrypted data into any PNG image file
formats; the eavesdropper will consider the image file as a part of the normal conversation because the image file before applying the secret algorithm is visually the same as the one after.
- Although the application gets broken down by reverse engineering, the attacker must solve the
aforementioned hard problems in both RSA and AES, and also must reveal the multiple times hashed common key which Bob and Alice share before starting their conversation.
Contributions
- Because of the discrete log problem in RSA and advantages of AES, a difficulty of decrypting the encrypted
message is guaranteed.
- The secret algorithm performing Steganography can embed the encrypted data into any PNG image file
formats; the eavesdropper will consider the image file as a part of the normal conversation because the image file before applying the secret algorithm is visually the same as the one after.
- Although the application gets broken down by reverse engineering, the attacker must solve the
aforementioned hard problems in both RSA and AES, and also must reveal the multiple times hashed common key which Bob and Alice share before starting their conversation.
Normal Pixel Controller
Embedded Pixel