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Questions tagged [encryption]

Encryption is the process of transforming information using an algorithm to make it unreadable to anyone except those possessing special knowledge.

0 votes
0 answers
30 views

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. ...
Oleg's user avatar
  • 1
1 vote
2 answers
1k views

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 ...
My other car is a cadr's user avatar
2 votes
1 answer
457 views

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 ...
Andrei Iosifescu's user avatar
2 votes
2 answers
1k views

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 ...
MalackaPower's user avatar
0 votes
0 answers
246 views

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; ...
Chris's user avatar
  • 631
1 vote
0 answers
477 views

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 ...
J Collins's user avatar
  • 708
0 votes
1 answer
99 views

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 ...
Martin Braun's user avatar
0 votes
0 answers
104 views

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" ...
IronDonkey's user avatar
0 votes
0 answers
297 views

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 ...
Ogglas's user avatar
  • 2,094
2 votes
1 answer
141 views

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 ...
PSt's user avatar
  • 21
5 votes
2 answers
1k views

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 ...
miran80's user avatar
  • 237
2 votes
2 answers
1k views

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 ...
TomS's user avatar
  • 461
0 votes
0 answers
700 views

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 ...
dushibida's user avatar
2 votes
1 answer
962 views

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 ...
bakslaash's user avatar
-2 votes
1 answer
424 views

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 ...
Lau's user avatar
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