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PixelKnot icon

PixelKnot

Hidden Messages
1.0.1 for Android

Guardian Project: Apps You Can Trust

The description of PixelKnot App

Have a secret that you want to share? Why not hide it in a picture? With PixelKnot, only your friends with the secret password can unlock your special message. Everyone else just sees a pretty picture. It’s a fun and easy way to share hidden messages without anyone knowing. Take those pixels, twist them in a knot, and see for yourself!

★ DISGUISE YOUR MESSAGES: Pictures are public, the text is hidden inside. Even a trained eye will think the image is unedited. It’s security through obscurity!
★ FOR YOUR EYES ONLY: Put a password on the secret message to make sure that no one can read it except the person it’s meant for.
★ EASY IMAGE CHOOSER: You can use the camera to take photos, or just use photos you’ve already taken.
★ INVISIBLE CHANGES: Even a trained analyst analyst shouldn’t be able to detect any message. The image bytes should seem undistorted.
★ SHARE ACROSS PLATFORMS: Want to share the images over email, file sharing tools (like Dropbox & Sparkleshare), social media (like Google+ & Flickr) or directly through Bluetooth or NFC? Not a problem! The messages are still recoverable on the other side. We'll have even more tools (like Facebook) working soon, so stay tuned!
★ AD-FREE: We want your love, not your money.
★ MATHEMATICALLY SECURE: We use the newly developed steganography algorithm F5 which implements matrix encoding to improve the efficiency of embedding and employs permutative straddling to uniformly spread out the changes over the whole steganogram.
★ ATTACK RESISTANT: We’ve launched attacks on images with messages hidden in them using a specialized version of stegdetect, an automated tool for detecting steganographic content in images. In most cases, the pictures have been impervious to attack. We will be including detection in an upcoming version of the application so you can easily test it yourself!
Don’t see your language? Join us and help translate the app:
https://hosted.weblate.org/projects/guardianproject/pixelknot
https://hosted.weblate.org/projects/guardianproject/pixelknot-metadata

***Learn More***
★ ABOUT US: Guardian Project is a group of developers that make secure mobile apps and open-source code for a better tomorrow.
★ OUR WEBSITE: https://GuardianProject.info.
★ ON TWITTER: https://twitter.com/guardianproject
★ OPEN-SOURCE: PixelKnot is free software. You can take a look at our source code, or join the community to help make it even better: https://github.com/guardianproject/pixelknot
★ MESSAGE US: Are we missing your favorite feature? Found an annoying bug? Please tell us! We’d love to hear from you. Send us an email: support@guardianproject.info

***Disclaimer***
The Guardian Project makes apps that are designed to protect your security and anonymity. The protocols that we use are widely regarded as the state of the art in security technology. While we are constantly upgrading our software to combat the latest threats and eliminate bugs, no technology is 100% foolproof. For maximum security and anonymity users must utilize best practices to keep themselves safe. PixelKnot is still an experimental application and should not be used in real world deployments. You can find a good introductory guide to these topics at https://securityinabox.org
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PixelKnot App 1.0.1 Update

2017-02-18
Big update to v1.0.1:
* Fix in JPEG encoding to defend against detection attack

Big update to v1.0.0:
* A brand new user experience... simple and streamlined!
* Now compatible with the latest Android OS and devices

New and improved in v0.3.3:
* Updated F5 steganography library
* Improved password security feature
* Cleaned up user interface for a more modern look
* Added background processing of encode/decode steps (you can do other things while it works!)
* More language support than ever!

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Additional App Information

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Previous versions
  • V1.0.1 1.9 MB APK

    PixelKnot

    2017-02-18

    PixelKnot 1.0.1 (101)

    Update on: 2017-02-18

    App uploaded by: Yokana Bollobollo

    Requires Android: Android 4.2+ (Jelly Bean MR1, API 17)

    Signature: 9f1960c9584fee5e166419354985a2b5fe413570 PixelKnot 1.0.1(101) safe verified

    Screen DPI: 120-640dpi

    Architecture: arm64-v8a, armeabi, armeabi-v7a, mips, mips64, x86, x86_64

    File SHA1: 657a11e4e69f0bc5d77e951bced2d08ec68d6103

    File Size: 1.9 MB

    What's new:

    Download

  • V1.0.0 1.9 MB APK

    PixelKnot

    2016-11-21

    PixelKnot 1.0.0 (100)

    Update on: 2016-11-21

    App uploaded by: Yokana Bollobollo

    Requires Android: Android 4.2+ (Jelly Bean MR1, API 17)

    Signature: 9f1960c9584fee5e166419354985a2b5fe413570 PixelKnot 1.0.0(100) safe verified

    Screen DPI: 120-640dpi

    Architecture: arm64-v8a, armeabi, armeabi-v7a, mips, mips64, x86, x86_64

    File SHA1: 1dc2aa10474c8033ad3b1f794f90e7537d2535b5

    File Size: 1.9 MB

    What's new:

    Download

  • V0.3.3 4.5 MB APK

    PixelKnot

    2015-08-06

    PixelKnot 0.3.3 (6)

    Update on: 2015-08-06

    App uploaded by: Даниил Дешин

    Requires Android: Android 4.0+ (Ice Cream Sandwich, API 14)

    Signature: 9f1960c9584fee5e166419354985a2b5fe413570 PixelKnot 0.3.3(6) safe verified

    Screen DPI: 120-320dpi

    Architecture: armeabi

    File SHA1: df9590a14f887c608a49dfa709ad9cad0dbe766a

    File Size: 4.5 MB

    What's new:

    Download

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