s-Note
Hide personal data in an image
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Archived App (Last seen on 5 Oct 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
s-Note allows encrypting note into an image leveraging on mix of steganography and cryptography techniques. The encryption process requires the user to select its own password. Images that contain notes must not be modified: not resized or filtered in order to preserve the integrity of the note itself.
s-Note exploits the standard AES cryptography algorithm to encrypt user info and a modified version of the F5 steganography algorithm to inject them into an image.
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What's New in s
3.6.2
August 4, 2023
User level: new attachments module, contact and document previews. With regard to the attacment snote assume they are not available, thus the preview proposes the users to create new entry any time. Application level: new Apple software components and update to iOS 16.4. Kernel level: reduced kernel size roughly from 1274 KB to 348 KB.
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