Collaborate Disseminate
Learning a bit about IT security, a segment of the material was the basics of steganography – specifically, hiding information in the lowest significance bits of images, and converting images into sounds. For the first it occurred to me th… Continue reading What steganographic techniques can I use in images that survive lossy compression?
I need to photograph an image containing a steganographically hidden message, then decode the stego content from the photograph without recourse to the original image data. Are there any steganography algorithms that would ma… Continue reading How can I recover steganographically hidden data from a photographic copy of the image?
New to buffer overflow through image parsing. How can one design a secure library that parses images, and ensure there are no security vulnerabilities in it? It is common knowledge that image parsing libraries are vulnerable … Continue reading How do we secure image parsing libraries against buffer overflow?
i have a jpg photo that was redacted on a phone using wechat app and we sent to me
i want to undo the redaction is there a way to undo it need it urgently
I have a follow up question on this answer about executing image files as php. The answer explains that nginx support virtual directories. One can run
www.something.com/blan.php/one/two/3
and one/two/3 will be virtual sub… Continue reading How can nginx run a file with jpg extension as a php file?
Like so.
Can I inject javascript into image urls, like this?
<img src=”javascript:alert(“haha! you are hacked!”>
Continue reading Can I inject javascript into a page via image?
I know we can read QR codes using the phone camera. Are there ways to analyze short video bit stream using the camera?
Continue reading Are there any way to read (scan) video using camera? [on hold]
I’m developing a folder lock app. In this app, I can pick images from phone storage and store in app and then I’ll lock the app because no one can get access to my personal pics.
The problem is that I don’t know what method … Continue reading Folder Lock App guide me! [on hold]
What kind of digital / cryptographic signing would make it possible to create a camera that cryptographically signs the photos it takes so that the images can be verified to have been taken with that specific camera?
The mot… Continue reading Is a cryptographically signing camera possible?
Is there a working technique to execute XSS in modern browsers using a SVG file displayed on a web page with an <img src=””> tag?
I know a way to execute without <script> tag, but I don’t know how to load a file … Continue reading Is there a way to execute XSS in an HTML img tag with SVG?