Questions tagged [encryption]
Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.
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Encrypt and decrypt simple text "phrases" locally [closed]
I am looking for a simple tool to encrypt and decrypt text phrases with a 'password'.
I have tried OpenSSL & gpg; I want a more straightforward tool that can also work in text phrases. There ...
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PTK and GTK where are they stored?
So I know for unicast traffic PTK is used to encrypt and obtain ciphertext; and for multicast traffic GTK is used to encrypt and obtain ciphertext. I know PTK is produced at a 4 way handshake, and ...
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Encrypted Email Client [storage]
Does anyone know of an email client, that encrypts locally stored data properly?
A lot of them are insecure and, yes I know, SMTP and POP3 aren't really secure either
but one may still use GnuPG and ...
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Hard time understanding LUKS encryption
I'm reading and studying for my LPI-1 exam, when I came across LUKS for disk encryption. I found it super cool and went to try it on my home lab, in my Debian machine. Installed everything, encrypted ...
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How to permanently delete a LUKS encrypted partition?
I have been using a LUKS encrypted partition as my /home directory on Manjaro. However, as I have to resize and move a few of my disk partitions, I would like to get rid of it. On Manjaro, I have ...
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Converting Linux partition to crypto_LUKS
I'm currently working on RHEL 8.9 and attempting to harden a VM of mine, and looking into applying the crypto_LUKS encryption to my active partitions. When I check my partitions using the blkid ...
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Veracrypt somehow really messed up the bootloader on my PC
So basically I wanted to install windows on a secondary physical drive in my PC so I could have a second bare metal OS for testing stuff. I have 1 M.2 SSD that has my main windows installation ...
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Is it possible to recover pass passwords from backup?
I was missing some passwords for some quite old accounts, when I remembered I'd made a backup of my drive at the time. There, I found a ~/.local/share/password-store directory, in which my passwords ...
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Memory errors since disabling Windows paging file (for data security and other reasons)
I have recently switched from Windows 10 to Windows 11 and have started experiencing memory errors while using various applications including as Chrome, audio applications, Firefox, etc.
I would like ...
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Is it possible to recover bitlocker using a USB drive?
So I've got a laptop currently dual booting windows and linux. I primarily use the linux installation, but I have certain things that need to be on windows. Currently I have bitlocker set up on ...
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Does encrypting full drive with BitLocker secure-wipe the drive?
Say I have a storage device that I want to use with my Windows 10 machine. I have some sensitive data on the drive and I would like to wipe the drive before using it. Normally I just use dd to fill ...
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Security of an encrypted partition in a flash drive
I have a flash drive that I carry with me everywhere in a keyring for convenient access to personal files on other people's computers. In the past, these flash drives tend to get lost as they break ...
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Get owner password of pdf from qpdf decryption?
I have a pdf file which I removed the owner password using
qpdf --decrypt encrypted_document.pdf decrypted_document.pdf
However, I need to know what the owner password is. Did qpdf find the onwer ...
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NAS as storage save against encryption virus?
I want to buy a NAS storage so that I can RAID the HDD's to prevent lost data if a HDD fails and use it as long term storage that I can access anytime.
The only non user error way to lose my data I ...
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Using python-gnupg library in AWS lambda function
I'm using Python 3.12 in an AWS Lambda function to decrypt PGP encrypted files. I'm using the python-gnupg version 0.6.0 library to do this. It decrypts files fine on my development Mac but fails when ...
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When I do a fresh install of win11 from usb stick, why is bitlocker enabled?
asking for a friend,
doing clean install of win11,
& logging in with MS account,
it setups bitlocker,
without being asked,
and it doesn't save the key to the MS account,
nor does it prompt you to ...
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Encrypted .dmg file password no longer working - even older versions
I have an encrypted 10mb .dmg file on my Mac.
The password is the same as the password I use to login to the very laptop I am typing this is on.
The .dmg won't open and tells me the password is ...
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Can I dd from one opened luks container to another?
I want to migrate my encrypted data from one drive to another. Both source and target should be encrypted. I've read in some other question, that I should create a new container, so that the superkey ...
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Should one really disable AEAD for recent GnuPG created PGP keys?
Apparently, there are some problems with the new defaults that are set when one creates a PGP key using a recent version of GnuPG (2.4).
I ran into this after generating a new ECC/ED25519 key to ...
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How secure is VirtualBox's VM encryption?
I'm using VirtualBox 7 on Windows 11.
How secure is their disk image encryption?
Where is the encryption key stored?
If a third party gets access to the computer when the VM is turned off, what are ...
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How to encrypt folder files using zip.exe [closed]
Example -path1 - desktop/file_source
Path2 - desktop/e_data_source.
How can we encrypt files from desktop/file_source to desktope_data_source path using zip.exe in cmd.
Could you please help me.? Is ...
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How to get minimal vendor information about the TPM chip installed in my laptop
How do I get some minimal information about the TPM chip in my Linux laptop?
Information such as the manufacturer, manufacturer id, manufacturer version.
So far I have tried the tpm2_getcap command to ...
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Encrypting with generic GPG key in gpg4win
One of our business partners has a PGP domain key where the key is valid for encryption to any email address of the business.
The user id of the key is like [email protected] - and for the life of ...
jhoffrichter
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How can I publish an RTSP stream to a MediaMTX instance with TLS encryption configured?
I have an instance of (MediaMTX) running on my laptop. I have an Amcrest IP camera. I can publish the camera's RTSP stream to the server so that the stream can be accessed from the MediaMTX instance.
...
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Does Bitlocker ever automatically suspend protection for non-OS drives / partitions? Or would a user ever need to manually do this?
I know that Bitlocker can automatically suspend protection on an OS drive / partition to, for example, install certain system updates.
And that sometimes the user might need to manually suspend ...
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can anyone explain how user keys are verified (post host key/KEX, and not authorized_keys)? issue with ssh user key verify
Nutshell: Looking for a bit of an ELI5 explaining the protocol and/or implementation (openssh) of [post-KEX] user key verification (who does what) without being in code I don't understand or a too-...
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Result is different between Phoronix test suite and openssl speed
I have the result from phoronix test suite openssl 3.1.0 and openssl 3.1.0 from phoronix folder. The result is different between phoronix and openssl. I don't understand how the value is calculated.
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Able to unlock BitLocker drive, but unable to obtain the 48-digit recovery key
I'm trying to obtain the 48-digit BitLocker recovery key from a failed drive. Here's what happened:
Windows 10 Professional was installed on a Samsung 980 Pro 2TB drive. The login was a local user ...
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Decrypting .PFILE files
Long story short, while trying to convert my external SSD from exFAT to NTFS, I messed something up and ended up corrupting a folder full of EFS-encrypted files. I can see the files, but accessing ...
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I have recovered data from my broken SSD, but Chrome doesn't decrypt my passwords anymore
I'm running Debian Linux and long story short I had an SSD failure. I have successfully recovered parts of my user folder, like the .config and .local directory.
I installed a new system on a fresh ...
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Bitlocker Encryption will not complete, completely locks up
I am trying to encrypt an external HDD with BitLocker, but for some reason the process crashed at 89.2%. I rebooted & removed and re-attached the disk (since bitlocker was completely locked up; ...
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When a folder is encrypted in Windows, where is the encryption data/keys stored?
I have an encrypted folder in Windows. Presumably there must be a key stored somewhere to access the data. Where exactly is the key stored? If in the registry, where in the registry?
I have an ...
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How to use the `ssh-add` session on `openssl pkeyutl -decrypt`
I converted my id_rsa private key to the RSA format using
ssh-keygen -p -m PEM -f ~/.ssh/id_rsa
explained in this answer.
I then added some handy aliases that will allow me to encrypt and decrypt ...
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Can someone help with deleted 7zip archive restore
As the title says, I recently deleted an archive in 7z on windows 11, I went into the 7zip recycle bin and can see it but i cannot restore it.. Any time I right click and hit "Restore" ...
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VeraCrypt - Permanently decrypt... - Error: VeraCrypt can in-place encrypt only a partition, a dynamic volume, or an entire system drive
I have a WD Red Plus NAS WD140EFFX - 14 TB - 3,5" drive that is encrypted with VeraCrypt AES(Twofish). It is not the system drive. I can mount the drive without a problem and the drive shows no ...
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BIOS damage/change or virus: BIOS password not appearing and bitlocker suddenly asking for encryption phrase
Approximately 2 years ago I set up my PC (Windows) as follows:
I set up a BIOS password.
I encrypted the whole system with a bitlocker
password, so I need to enter a bitlocker password.
Usually when ...
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Does AES 256 GCM have any restricted byte sequences imposed on its cypher text?
Specifically I am inquiring, if the cypher text can include a byte sequence such as 170303, which is one possible TLS record header.
Normally the application that parses the TCP byte stream delimits ...
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How to make S/MIME certificates available to mail recipients
I would like to use S/MIME encryption with our emails.
I think that I understand how things are working and I am able to send encrypted mails between people when they have all the necessary ...
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Bitlocker suddenly activated on my machine, prompting for recovery key that I don't have
I've run into a very strange problem with my Lenovo laptop (Windows 10 Home) and although people say it's not possible, it still happened.
I have been using my laptop for over two years and have not ...
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Command Line decryption of aes-256-gcm no-longer working after OpenSSL updated
Late last year (2022) I encrypted a file using OpenSSL using terminal on my Mac with a very simple openssl enc command and was able to decrypt using this command:
openssl enc -d -aes-256-gcm -in ...
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I encrypted files and folders on my USB drive and now I can't open them anymore
I used Windows encryption to encrypt files and I exported the .pfx file to that exact same drive, so I had to use a password to open files every time and it was all fine until one day when I ...
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Operation failed with status 2: No such file or directory. How to recover?
I have an external backup disk for my Macbook. The disk has two partitions and both are encrypted. One partition has a copy of the systemdisk of my Macbook, the second keeps a Time Machine backup.
...
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In RSA or Assymetric Encryption, What EXACTLY is the purpose of the Private key? Do both hosts send their private key to each other?
First, let me know if i got anything wrong.
The whole private and public key concept confuses me to no end. From what I know, basically RSA uses both public and private key. Public keys are PUBLICLY ...
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Does dm-crypt compatible with btrfs on dm-smr drives?
I want to setup a encrypted drive using btrfs on a DM-SMR hard drive. and I am concerning about dm-crypt don't expose ZNS interface to btrfs.
I tried search but only get these:
https://news....
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Data Recovery from Veracrypt-Encrypted External Drive After Power Fluctuation [duplicate]
I find myself in a bit of a predicament and am reaching out for guidance on recovering data from a specific partition on a 1TB external hard drive, where all partitions are encrypted with Veracrypt. ...
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Why was Bitlocker Recovery triggered on new working Ideapad laptop?
Starting today, my Ideapad 5 laptop that I bought in May and have been taking care of, only shows the Bitlocker Recovery screen upon boot, preventing me from proceeding into Windows. I do not know my ...
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In OpenSSL, if I decrypt using a wrong password it just tells "bad decrypt" without showing the output. Is there a way to show it anyway? [closed]
I encrypted a sample test file using:
openssl enc -aes-128-cbc -in test -nosalt -out encprova.aes128
Then, to decrypt:
openssl enc -aes-128-cbc -d -in encprova.aes128 -nosalt
and if I write the ...
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"Backup your file encryption key" message even if no files are encrypted
Since a few days, I get this message at boot:
I probably opened files, from a ZIP, appearing in "green" (encrypted?) in the explorer, but I deleted them. Doing cipher /u /n /h shows that no ...
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Wpa PTK and GTK in detail
I have been checking Pairwise and Group Transient keys in a network for security. I understand
PTK is derived from = PMK, AP nonce (ANonce), STA nonce (SNonce), AP MAC address, and STA MAC address
...
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Can't access Samba drive from android devices as encryption is required
I am unable to access my samba drive from any android device. The connection fails even though the password is correct.
Looking at the logs, I can see that the connection fails due to the lack of ...
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