Questions tagged [decryption]

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

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SSLKEYLOGFILE for Bluestacks

Is there any way to make bluestacks.exe generate a file that can be used for by Wireshark to decrypt the data coming through TLS 1.2V requests from a specific server?
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HDD recognized but I can’t find my data [closed]

my HDD is recognized but my data is encrypted and I can't find it. I launched the .Desktop file in the folder I want to recover my data from and put my password in it: https://www.noelshack.com/2020-...
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decrypting EFS encrypted files on windows 10

I have encrypted a folder in my external hard disk consisting sub folders and my personal images and videos on my windows 10, i have no knowledge of taking a backup of key or certificate and formatted ...
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How to decrypt video using FFmpeg?

I've managed to encrypt my video files using the ffmpeg command below; however, I can't find a way to save the decrypted output. ffmpeg -i {file} -encryption_scheme cenc-aes-ctr -encryption_key {key} ...
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How to decrypt a single ecryptfs file

Long story short, I recovered one ecryptfs file from an encrypted home folder that I need to decrypt. Still have access to the original still working system it was recovered from. Just not sure where ...
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tshark decryption fails on old OS but succeeds on new OS

I have a pcap tracefile and private RSA key that should allow me to decrypt the HTTPS data in the pcap file. With the exact same pcap file, private key and tshark command, I find that decryption ...
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360 views

How to decrypt Outlook traffic in Wireshark?

I have to follow Comparitech's SSL Decryption Guide: How to Decrypt SSL with Wireshark.  But it is not working for Outlook - Office 365 mail traffic.  I'm seeing traffic on port 443 only and it's SSL-...
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No secret key error

Im using Control-m to facilitate a transfer from a vendor. I use Kleopatra to generate a key pair and then give the public key to the vendor to encrypt and send us files. Every time I test ...
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How to know for sure which keywoard layout is active while entering passphrase for decrypting disk at startup on Ubuntu 18.04?

I have installed a brand new Ubuntu 18.04 distribution on my laptop and i chose to encrypt the disk. During the installation, i used a french layout (AZERTY) as i have a french keyboard. But now that ...
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aes-192-cbc - Get the password from Salt, Key, IV,

A friend has sent an encrypted file and gave the password to decrypt it. openssl enc -d -aes-192-cbc -in file.tar.gz.enc -p -out file.tar.gz When I use it, I'm getting errors salt=ABC key=DEF iv =...
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how to solve Kerio Control's Local Authority certificate issue with mobile applications?

I'm using kerio control firewall in our company and as you know it has an option named:"Https decryption". As I want to track all of the data that users browse in the company, I have to turn it on. I ...
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Encrypted my private folder on a local network and couldn't open it

I have an account on my company local network and tried to encrypt my private folder and saved the key. but i can't open it even though i have the key and it says " access is denied " and i don't have ...
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I turned off BitLocker encryption on my 5TB drive and now it continues to decrypt for days!

I am worried I will lose my data while the drive decrypts. It is now at 23.2% encrypted and continues dropping to 23.1 etc. Do I have to wait until it reaches 0% encryped before I can turn my PC off? ...
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How do i decrypt some word and pdf docs. I had formatted my pc and now i cannot open these files because of access denied

I formatted my pc without decrypting some very important documents. Certificate was not backed up either. Please suggest something ?
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Decrypt PGP message with private keys but forgotten passphrase

I forgot the passphrase of my PGP, but I have the private keys. Is there any "easy" method which doesn't take years to decrypt the PGP message?
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Restore passwords from Google Chrome login file

I have reinstalled Windows recently and as a result lost all of my login data for Google Chrome with sites' passwords. A little research told me that I have to be under the exact same windows profile ...
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unknown tag 26 encountered bouncy castle exception

unknown tag 26 encountered at org.bouncycastle.asn1.ASN1InputStream.buildObject(Unknown Source) at org.bouncycastle.asn1.ASN1InputStream.readObject(Unknown Source) at org.bouncycastle.asn1....
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Windows 10 - Decrypt EFS encrypted [closed]

I encrypted files using EFS tool on my PC and then transferred them to another PC without transfer the certificate used to encrypt data, but then I want to retrieve them. I moved it encrypted from the ...
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701 views

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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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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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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531 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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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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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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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 too and tried some commands but none of them worked. So what I have is initial vector: ...
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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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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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149 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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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
200 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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6k 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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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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6k 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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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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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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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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43 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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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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1answer
781 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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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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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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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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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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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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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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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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3k 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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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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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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796 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 ...