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Questions tagged [decryption]

The process of converting encrypted content (ciphertext) into its original, readable form (plaintext).

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Find string packet in decrypted data with wireshark/tshark

I am analysing a capture of encrypted traffic with wireshark. I have decrypted the traffic with the proper passphrase in wireshark and I can see the decrypted data of each frame. The point is that if ...
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41 views

Redecrypt and Enigmail Encrypted Message

I've input the wrong passphrase for my Thunderbird email with Enigmail Add on that is required to view email contents. I've received the text: "This is an encrypted message. Unfortunately you don't ...
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58 views

How do I avoid all passphrase prompts for GPG2's asymmetric decryption?

I've made my own program which utilizes gpg for encrypting and decrypting (both symmetric and asymmetric). It works fine with gpg1 on all accounts, and it works fine with gpg2 for both kinds of ...
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1answer
35 views

Corrupted text file with Microsoft Enhanced Cryptographic Provider written at top

I have a file containing some important information which I had marked as hidden on my windows PC. I moved this file to a USB and inserted the USB into my phone. The file had changed its extension to ....
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33 views

Ecryptfs input/output error

Recently my primary workstation OS "Linux Ubuntu" failed to boot and has since become irrecoverable, however the encrypted home directory is still intact but i cannot decrypt as it keeps giving me ...
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1answer
37 views

Is it possible to decrypt a file without knowing password only an encrypted string?

I am stuck at a point, here I have encryptionkeys.db(i don't know the use of a file). The folder name is also encrypted(coded) I know the folder name(decrypted), with this I just want to get the ...
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77 views

Trying to encrypt Hex to base64 via clipboard with AutoHotKey

I got a code that will decode highlighted URL to base64. Now I like to encode a highlighted hexadecimal to base64 but I cannot get it work : / As example, we have hexadecimal: ...
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118 views

How to read/decode/parse HTTP/2.0 capture decrypted by Wireshark?

I thought Wireshark successfully decrypted an encrypted HTTP/2.0 connection once it was pointed to pre-master secrets from Firefox after setting SSLKEYLOGFILE. It shows the header when following the ...
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1answer
2k views

How can I encrypt / decrypt AES-256 CBC with OpenSSL?

I just installed Linux (Ubuntu) for the first time and downloaded package OpenSSL as well. Opened command line as well and tried some commands but none of them worked. So what I have is initial ...
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63 views

Enigmail Security Info Error - decryption failed

Everything was working fine but now this "decryption failed" error shows up. I have tried reinstalling Thunderbird, Enigmail, and gpg4win, and even re-added my key.
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1answer
198 views

Decrypting Application Data with (Pre)-Master-Secret log file in Wireshark

I've read a few articles outlining a process for decrypting SSL/TLS traffic without a private key. Session keys are generated in a log file, which are then read from Wireshark by point to the log file....
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1answer
100 views

GnuPG encrypt a file using keys provided as files

I'm using GPG4Win to create a key pair. I'd like to be able to encrypt/decrypt a given file using myself as recipient so that I use exported key pair alone. I want to be able to do this from a batch (...
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879 views

How to decrypt .pcap file captured by Packet Capture on Android?

I use Packet Capture on Android in order to capture packets. It installs certificate on Android in order to be able to capture encrypted packets. The .pcap files are saved in encrypted form on the ...
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1answer
150 views

Hardware encryption on usb drive / stick

I am wondering whether there is a possibility to encrypt and decrypt an usb drive or stick with some microcontroller or single-board computer (e.g. Raspberry Pi) on the fly. For instance I want to ...
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1answer
3k views

How to decrypt an S/MIME encrypted email using openssl smime?

For some reason, I seem unable to find an answer to this basic question. I have received an encrypted S/MIME email, and I want to decrypt it using openssl smime. However, I assume I am unable to ...
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1answer
52 views

Javascript, Coding help requested [closed]

To start I am a noob, so explanation of whats happening or what needs to be done to complete the code would be extremely helpful. I had an issue come up at work, and I found an helpful stack ...
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1answer
3k views

Decrypt with GPG, says I need a passphrase when I am inputting passphrase

I have 2 boxes, box A and B. Box A and B both use the same public/private key pair to encrypt and decrypt data. Everything works fine in box A, but in box B I can't decrypt the files i encrypt with ...
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411 views

How decrypt file which was encrypted by windows 7

My User profile was deleted and newly added by me on today. I didn't delete user files and copied to new user profiles. but i can't open many of files. file name is green color. Therefore file should ...
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2answers
1k views

How to decrypt files after BTCWare Gryphon?

My PC got affected by BTCWare Gryphon. I have tried different software such as Data Recovery Pro, 360 Document Protector, Kaspersky, and so on, but they couldn't help me. ID Ransomware claims that ...
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1answer
170 views

Decrypt files after Petya ransomware attack in 2017 [duplicate]

Does anybody know if the recent flavour of Petya ransomware (active in June 2017) is somewhat different from one that appeared back in 2016? I am only interested in the decrypting approach. This was ...
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1answer
40 views

How to get rid of the lock symbols on files which denies access when opened?

I have an external HDD, files within one folder are somehow encrypted due to a virus I assume. Whenever I try to read, copy, delete or even move the files within that folder it says access denied/...
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2answers
862 views

Configuring 802.1x PEAP credentials wireless Wi-Fi with PowerShell

I am trying to automate the Wi-Fi connection for testing purposes. Using netsh command in PowerShell I can generate the xml file and connect to any Personal Wi-Fi. But getting issue with the ...
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272 views

dm-crypt/LUKS, won't mount encrypted drive. Requested offset is beyond real size of device

I screwed up my partition table the other day but had recovered it with TestDisk. After re-writing the partition table, I'm able to boot up into GRUB and subsequently the interface for entering my ...
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1answer
9k views

PGP file decryption from Linux cmd line

How can I decrypt a .pgp file to .txt file using a key(.asc file) with the Linux command line.
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237 views

Chkdsk F: /f Aborted after Data Recovered From BitLocker Using repair -bde

A partition on my drive was protected by BitLocker. It stopped opening all of a sudden showing me the error message "The disk structure is corrupted or unreadable". I followed this article to ...
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1answer
1k views

How to decrypt veracrypt on linux?

I have a laptop with an encrypted windows partition and want to decrypt it using veracrypt on a live linux. There seems to be no option, however, to decrypt the partition with the veracrypt gui in ...
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1k views

can't decrypt bitlocker in windows 10

please tell me the command to unlock your BitLocker drive using command prompt. it's the E: drive. i have both the recovery key and the password but when i try to manage the bitlocker it shows a pop-...
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1answer
3k views

Decrypt file from private key .ppk

I got a file from our developer, those file on (private key = file.ppk), (public key = pub.asc), and (encrypt file = file-encrypt.txt.pgp). For some reason who create this file have been resign and ...
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2k views

How to decrypt McAfee EPo drive / partitions manually after broken boot loader?

Windows 8.1 laptop disk was encrypted with McAfee End Point Encryption (EPo) software. Something was done with boot loader and boot of OS was coruppted (I don't know exactly), now data on C and D ...
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388 views

How to remove Excel password (I know the password) WITHOUT Excel?

Spent about a few hours scouring the net for an answer, but nothing so far has worked. I've tried DOCRECRYPT with absolutely no success, the certificate side of things are broken and there is no fix ...
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1answer
323 views

How is HTTPS browsing history monitored?

I am researching on how to monitor HTTPS browsing history. I am not a network person, so apologies if I sound ignorant in this issue. I googled the following questions below, but nothing substantial ...
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2answers
2k views

Print (decrypt) a vim encrypted file

I use the -x option in vim to encrypt a file. I read this files much more times than I write to it, so I always use cat and then remember it is encrypted because of what it shows.. So then I have to ...
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1answer
2k views

Need help decrypting a Windows 7 system drive with Diskcryptor

I've had my Windows 7 64-bit Professional system drive fully encrypted with Diskcryptor, and now I'm trying to unencrypt it so that I can install several new operating systems. I used DiskCryptor to ...
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0answers
65 views

How can I decoded Linksys WRP400 configuration file?

I've lost my VoIP provider password, so I want to recover it from my router configuration setting. Now I've done backup configuration file but I don't know encrypted method for this file. Does ...
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1answer
25k views

I am a victim of the Petya ransomware. Is there a solution to decrypt my disk?

My computer got encrypted by the Petya ransomware. After a long search I could not find a solution other than using file recovery software. This helps a bit, but I am wondering if there is a way to ...
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4answers
680 views

How to be able to read encrypted files in the future, when the encryption tool is not available anymore?

I back up a lot of my files encrypted, but what I wonder is how to make sure that I will have access to this data in, let's say, ten years, when the tool that I used to encrypt the files is not ...
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1answer
128 views

Decrypt file that was encrypted using a public key created from storagon.com

I recently downloaded a file with BitTorrent application. The file is encrypted. the file name is : AAAAAA.rar.{a key with length of 32}.storagon_encrypted Does anyone know how I can decrypt the ...
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1answer
755 views

Centos 7 auto unlock encrypted hard drive

I have a Centos 7 server, and i have chosen to encrypt the hard drive in case someone breaks into my home and tries to read the files on my hard drives by directly inserting them into his own computer....
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1answer
315 views

Bitlocker on Windows 10

A year and a half ago I successfully encrypted my external Western Digital hard drive using Bitlocker. After a few days I disabled Bitlocker, so the decryption process started. Halfway through this ...
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1answer
439 views

TrueCrypt - ran “decrypt” by accident on wrong disk which was not encrypted - how to “encrypt” it back?

basically I had normal, not encrypted disk, which I thought is my truecrypt drive. I booted from TrueCrypt Rescue Disk.iso and selected "Permanent Decrypt my data". It complained about key data being ...
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0answers
2k views

I've upgraded to Windows 10 Home, how can I decrypt my drivers from BitLocker?

Since Windows 10 Home doesn't have BitLocker support (you can unlock drives though), I've decided to use different software. That said, I need to decrypt my BitLocker-encrypted drives. How can I do ...
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0answers
262 views

How to decrypt single file or folder?

In the proces of encrypting the whole drive, an error occured and my drive was broken. I've managed to recover all files. However, some of them were still encrypted. I've tried using TrueCrypt, but ...
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1answer
899 views

Using GnuPG or ccrypt to encrypt files?

When I encrypt some files (e.g. a folder or a tar-archive) whould you prefere gpg or ccrypt?
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1answer
1k views

Bitlocker decryption interruption - this disk has one or more errors

I was busy decrypting a drive when there was a power failure. After the power was restored, I was happy to see that the decryption process continued once I turned on the PC. It was short lived, as the ...
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0answers
76 views

OpenSSL listen and decrypt automatically

I want to design an application to connect my server using OpenSSL and send encrypted data (encrypted with server public key) to specified port on server like 4433. All client using server public key ...
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1answer
34 views

OS X Mavericks doesn't start decryption after password entered

I'm having some issues with my MacBook Pro. Last week I found the computer with a gray background with a folder symbol with a question mark in the middle. I couldn't do anything with the computer so I ...
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1answer
360 views

External hard drive making noise; Can I eject drive during CHKDSK operation?

Whenever I connect external HDD to my laptop. It shows decryption error and suggest to run chkdsk /r. So this time I did so as per this suggestion. It's taking a lot of time. What happens if I eject ...
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1answer
377 views

Speed up Truecrypt decryption with rescue disk

Is there a possibility to speed up the decryption of a volume while using the rescue disk? My Windows crashed and I am not able to boot Windows. Unfortunately the decryption of my 300GB Hard Disk ...
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3answers
11k views

Retrieve/decrypt Windows 7 product key from Linux

I accidentally disconnected my hard drive while it was still running and corrupted my Windows 7 installation; I am now completely unable to boot into Windows. I have tried everything to try and repair ...
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1answer
4k views

Android - recover encrypted images

I have nearly 0 understanding of encryption, I just want to recover my old photos. In my old Android phone I used a certain photo-video locking app to encrypt my images. Images were stored on SD card....