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I have a folder encrypted with fscrypt. If I unlock this folder and delete a file from it (as the folder is unlocked anyone can see the contents of the files), then after deletion I lock this folder again, what will happen to this deleted … Continue reading Deleting files from folder encrypted with fscrypt
I want to know what attack am I exposed to if I implement one of the two method. I’m pretty sure both of them are not 100% fool-proof and both of them are expose to traffic-analysis attack if I do sent the files through the internet. I wan… Continue reading Which is preferable compress and encrypt or just encrypt and no compression in purely security perspective and not in resources or efficiency? [duplicate]
Does anyone know why some ransomware families (e.g. Cuba but also Phobos if I am not mistaken) pad the file header to get to 1024 bytes?
I mean what would be a reason for the ransomware developer to not just encrypt the entire file but add… Continue reading Why some ransomware adds padding to headers
Let’s say someone has a full disk encrypted laptop powered on when the adversary tries to break into her home to seize her laptop. If she simply put her powered-on laptop into a fish tank nearby, would it be effective against forensic inve… Continue reading Is throwing powered on laptop into a fish tank effective against forensic [closed]
I’m writing a turn-based multiplayer video game. I want the game "host" to be able to write a file for each player and store them in a single directory, but encrypted so that only the player holding a key can access the file. The… Continue reading Protecting assets using cryptography [closed]
I’m in the process of figuring out an encryption strategy for a personal Linux system.
My laptop is almost always on, or in sleep mode, except for longer travels.
My main threats are theft of my laptop while powered on, and evil maid.
It i… Continue reading How to protect files in use on a system powered on from physical theft or tampering?
I’m currently working on a project. but i still facing some issue due to some crypted data. i know the plaintext and got the correspond hash.
plaintext: C018AE45B37DAE665486F4151E0C1E6F
Hash: rROkd+H57WFtdkbkOEgTWLG0zqFpo/++2ttu0YPXvqNn2l3… Continue reading How to find the correspond hash algorithm?
Relevant question for Python:
Stack Exchange: https://stackoverflow.com/questions/75739308/aead-authentication-with-huge-input-that-doesnt-fit-into-ram
Top Answers: https://topanswers.xyz/python?q=3867
Basically: data that doesn’t fit in… Continue reading AEAD: Authenticating a digest of my data instead the data itself
I have a video protected by DRM with an encrypted key. It is made of many .ts chunks that I would like to decrypt and merge together in order to create a mp4 file.
How would I proceed?
The m3u8 file is as such:
#EXTM3U
#EXT-X-VERSION:5
#EX… Continue reading Convert .ts video files linked by .m3u8 playlist to .mp4 [closed]
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