Collaborate Disseminate
Some time ago I read an article that mentioned that it is possible for some ransomware to change the magic numbers of a file (that makes sense). However, the authors claimed that their method was better, because they calculated the entropy… Continue reading Why does some Ransomware encrypt also the file header and trailer?
Currently on the "FLOSS market" there are multiple options for encrypting remote cloud storage following different security models and different philosophies. To name a few:
encfs (I guess it’s legacy)
cryfs (still in beta)
gocr… Continue reading Which of these filesystem encryption philosophies and methodologies are better for which purpose? [closed]
I have a Python 3 program, and I’m having trouble finding an encryption method that will suit my needs.
Suppose the program is on a thumb drive. I would give the thumb drive to someone else, and they will run it. It will ask them to input … Continue reading Encryption method for file that can only be read by program
According to android documentation the FBE system has two different levels. Credential Encrypted (CE) storage and Device Encrypted (DE) storage.
Does a factory reset of an FBE phone reset the keys of both storages?
If I run a full disk en… Continue reading Android FBE securely wipe all data
I’m wondering if popular closed-source archiving software like WinRAR or WinZIP are tested regularly by other developers to check if they have some kind of intentional backdoor or unintentional weakness.
By backdoor/weakness I’m referring … Continue reading Are Popular Closed Source Archivers Secure?
Scenario
The following bash commands create an empty file test.txt, encrypt it using a default algorithm to test1.gpg, then append the line new line to the original file and encrypt it again to test2.gpg. Each of the gpg commands prompts t… Continue reading Does knowing how an encrypted file changed make it vulnerable?
I’m addicted to this game, and while I don’t want to delete it, I want to be able to encrypt/lock it in a way where the decrypting/unlocking takes a day, and ideally during that day I can cancel the decryption process (hopefully by that ti… Continue reading How to encrypt a file that only "unlocks" after a day?
My threat model is that, the adversary has physical access to the machine and root access.
I don’t care about any data on the system other than a couple python scripts that contain sensitive information.
I will be protecting these text fil… Continue reading can these encryption methods for a text file protect against physical access to machine by adversary?
Since, I am new to gpg I wanted to generate a key pair. So I typed gpg –full-gen-key and inputted the following:
root@kali-linux:~# gpg –full-gen-key
gpg (GnuPG) 2.2.35; Copyright (C) 2022 g10 Code GmbH
This is free software: you are fre… Continue reading How to fix import private key in GPG?
Assuming I boot up a fully encrypted OS from a portable flash drive and do some tasks in this running OS; then abruptly disconnect this flash drive from my computer and a malicious actor gets their hands on it.
Is there a chance that they … Continue reading Flashdrive data confidentiality when disconnecting flashdrive from machine abruptly