Show HN: File Hider

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  • File_Hider

    File Hider is a sophisticated tool that allows you to securely hide and encrypt a file within another file using multiple layers of AES-256 encryption, with the AES key itself being encrypted using RSA.

  • Thank you for your valuable insights and recommendations. I genuinely appreciated both the suggested paper and your project, as they contributed to my learning. I completely agree that File Hider techniques have significant room for improvement in terms of seamlessly integrating the hidden data within the host file more organically. Regarding the session key, it is encrypted https://github.com/x011/File_Hider/blob/0f46058731d08c06a110....

  • CyberChef

    The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

  • WorkOS

    The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

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  • XOR_LSB_Stego

    A python implimentation of DOI: 10.1109/ICOIACT46704.2019.8938486

  • Modern forensic analysis tools would be able to detect the high entropy encrypted data within the host file fairly easily. Additionally, the process of embedding the unencrypted session key, salt, file size, and then the encrypted data as a struct like you are would increase the detection of embedded data.

    Half the battle is making sure the hidden data cannot be detected and the second is that the data cannot be read if detected. A more algorithmic approach to the embedding and extraction which uses properties of the host file to determine the relative locations of the session key, salt, file size, and data would likely better hide the presence of the embedded/encrypted data.

    I recently made a novel implementation of, "An Image Steganography Algorithm using LSB Replacement through XOR Substitution (DOI:10.1109/ICOIACT46704.2019.8938486)" which you can find here: https://github.com/JustinPack/XOR_LSB_Stego

    While my approach is a simple one lacking any inherent encryption, it could easily be added. I think you will find the paper a highly interesting read and it is also in my project.

    Cheers and great work nonetheless.

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