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Tag: encryption

Linux

Is it safe to move a LUKS encrypted partition to another system and be able to use the same passphrase?

admin October 22, 2020

If I have a LUKS encrypted partition with a passphrase, is all the information to unlock the partition contained in the header? Is the following correct: The passphrase allows access to the header …

encryptionlinuxlukspartitioning Comment on Is it safe to move a LUKS encrypted partition to another system and be able to use the same passphrase?
Windows

Windows has started encrypting all my newly created files and folders by default

admin May 28, 2020

For some reason, all my new files and folders are getting encrypted. I am able to access them but when I right-click on the folder or file and go to properties>general>advanced>compress or encrypt …

encryptionwindows
Linux

Algorand’s Verifiable Random Function (VRF) implementation

admin May 4, 2020

I have been trying for a while to compile the VRF implementation that algorand open-sourced more than a year ago (available here). There is little to no documentation, so I haven’t able to do it. I …

ccryptographyencryptionlibsodiumlinux
Windows

Does changing the encryption password imply rewriting all the data?

admin November 22, 2018

Let’s say I have 1 TB of data on a partition encrypted with BitLocker, TrueCrypt or VeraCrypt. Does changing the encryption password imply rewriting all the data (i.e., will it take hours/days)?

bitlockerdisk-encryptionencryptionwindows
Linux

Bcrypt for BASH Shell?

admin November 30, 2017

I’m searching for a way to hash a password using BCRYPT in a BASH script. I’ve searched high and low, and googled all the things … the closest I’ve come is maybe an implementation using openssl, but …

bashbcryptencryptionlinuxshell
Arrays

Vignere Cipher encryption/decryption using arrays

admin February 24, 2017

I need to first encrypt and then decrypt a message using the Vigenere cypher. This is how it should work example message: “c a t s _ d o g s” keyword &…

arrayscaesar-cipherencryptionjavavigenere
Windows

Error when trying to save Bitlocker recovery key to Microsoft account

admin October 7, 2016

It’s not wise to store the recovery key on flash drive, for example. That means anyone that steal my computer and my flash drive can easily decrypt my recovery key. That defeats the purpose of …

bitlockerencryptionmicrosoft-accountwindows
Windows

File Encryption

admin September 19, 2016

I want to send a client a disc (DVD) version where files can not be moved off of the DVD onto a computer. Is there a simple way to encrypt a disc so that no files can be moved off onto a computer? I’…

dvdencryptionusb-flash-drivewindows
Windows

Simple USB drive encryption under Windows – Best Practise?

admin July 20, 2016

I’m looking for an easy (!) way to encrypt (and decrypt) USB volumes under Windows 10. Easier than my current practise: Currently, I’ve an True Crypt file on the USB volume and a portable TrueCrypt …

encryptionhard-drivetruecryptusbwindows
Windows

Windows 10 BitLocker on bootup presents just a blue screen but no password box or text.

admin July 18, 2016

I have a Windows 10 machine that used to work just fine. Now when you do a reboot the password box and text does not show. You can type the password and get enter and it will work. What would cause …

bitlockerbootdisk-encryptionencryptionwindows

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