Questions tagged [decryption]
The process of decoding data that has been encrypted into a secret format.
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In PSK TLS, how is the key used for encryption derived?
I'm trying to decrypt a message sent over a secure communication channel using TLS_PSK_WITH_3DES_EDE_CBC_SHA. I now have the client random number, server random number, PSK identity and PSK value. My ...
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CryptoWall 3 - how to prevent and how to decrypt?
My father's computer is now infected with CryptoWall 3, according to the link below.
http://www.bleepingcomputer.com/virus-removal/cryptowall-ransomware-information#CryptoWall
Is there a way to ...
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Extracting openssl pre-master secret from apache2
I would like to be able to decrypt my server's https traffic for debugging and analysis. My server is a debian 9 Apache2 server running mod_wsgi and django.
I have seen this post:
Extract pre-master ...
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0
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1
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How to find just the first character or value of a MD5 hash string
I want to know how to find just the first character or digit in first part of a 64 length string from a MD5 hash. For example, we have a hash:
...
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Has anybody successfully decrypted their files after paying the WannaCrypt ransom?
WannaCrypt is a shot heard 'round the world, for sure.
I have seen news articles saying that people have paid more than $20,000 in ransoms. Here's one from Krebs: Global ‘Wana’ Ransomware Outbreak ...
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How to read password from Windows credentials?
What is the cipher used by windows Credential Manager to generate credentials backup files (*.crd)?
With a backup file from Credential Manager and the password used to created that backup file is it ...
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2
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Decrypting SSL using Wireshark on Linux vs Windows
I'm working on decrypting my own traffic that gets sent through Wireshark and I've been following this guide for reference. I have been using the SSLKEYLOGFILE environment variable and I can get the ...
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How to decrypt a microSD card after a factory reset of the device used to encrypt it?
Two month ago, I encrypted my Micro SD card in my Android device (Samsung Galaxy S5) for security purposes, and yesterday I forgot to decrypt it whilst removing the card I and factory resetting the ...
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Is it possible to crack ransomware encryption if I have the original file?
Is it possible to crack ransomware encryption if I have 2 versions of a file: before and after the encryption? Are there any tools for such a thing?
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Can't decrypt captured HTTP connection from WPA Network
Hi I am attempting to sniff HTTP packet traffic using Wireshark on Kali Linux. I have added my wpa-pwd correctly to the IEEE 802.11 protocol and enabled "decryption".
Currently I can only view the ...
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1
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Breaking Wifi password knowing its length of 8 [A-Z] alpha (upper-case) characters using Hashcat
I got the WPA handshake, now it's turn to crack the password using Hashcat. First, I wanted to make a wordlist of passwords [A-Z] the length of 8, but Crunch (the tool in Kali Linux) said it will take ...
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Dharma ransomeware files decryption [closed]
One of my clients send me some picture that shows they infected by some ransomware. As i analysed i found that ransomware is probably Dharma ransomware, child of Crysis. so i tried to decrypt files ...
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1
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Capturing SSL Traffic from My iPhone and Decrypting it
I'm using an application connecting to a server over HTTPS and HTTP , I already monitor the HTTP traffic, but the I want to see the HTTPS traffic and decrypt it. I use Kali Linux & Windows 7.
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Is there such a thing as a "Black Box" that decrypts Internet traffic?
I have been reading about the Snoopers charter bill that was passed in the UK this week.
It mentions a "Black Box" which is cited here: ‘Black boxes’ to monitor all internet and phone data.
It ...
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4
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How To Recover End-To-End Encrypted Data After Losing Private Key?
I'm creating a mobile app which has chat feature in it. Since I wanted to make it secure, I'll do some encryption to messages and the data. I'm thinking of using End-To-End encryption for it but I've ...
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Can I decrypt my SD card with another phone?
I found this answer in an old 2016 post, and I have the same problem.
I encrypted my SD card and when I unencrypted my phone, I didn't realize I needed to unencrypt the SD card first. To be honest, I ...
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How to deliver an encrypted message to multiple recipients without revealing keys
Let's say I have generated a private and a public key. I create a message and encrypt it with the public key. I deliver this encrypted message and a private key to multiple recipients.
Why would I do ...
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1
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Client-side encryption using public-key
My situation:
Login password from a POST request is left in browser memory in clear text as long as cache is not cleared (manually/closing browser).
Connection is HTTPS.
Possible Solution:
Generate ...
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3
votes
2
answers
4k
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GnuPG does not verify signature while decrypting
I have signed file 1.txt, result file is 1.txt.asc. I changed content in file 1.txt.asc (signed content, not signature). Then I verify signature in 1.txt.asc and I get information that signature is ...
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SSL Decryption why is the root CA certificate required on clients?
Maybe a quick question. We have Palo Alto's that perform SSL Decryption using a sub CA certificate issued by our internal Root CA. This is working for our internal windows domain computers as the root ...
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1
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security of AES where attacker can ask secure code to decrypt arbitrary cypher-text
A service or library provides a function decrypt( user_id, cypher_text) and gives back plain text. Internally to the function it loads an AES key from a secure vault, decrypts the cypher_text, and ...
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Impact of sharing the private key with a third party for snooping SSL traffic
I am trying to understand the impact of sharing the private key with a third party for snooping SSL traffic. Below are my thoughts, please correct and add if some more impacts are there:
One clear ...
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2
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Does theft of the webserver's private key allow retro-active decryption of previously logged transmission?
Assuming one is logging all data between the client browser and the HTTPS server, is it possible to later decrypt that logged data, once the private key has been stolen from the webserver?
Or, ...
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1
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How is this OpenPGP key displaying in a non hexedecimal format?
Looking at a GnuPG manual on openskills, I notice that the main key id GEBV933F is in a different format than the usual hexadecimal (G is no hexadecimal digit).
How is this done?
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deleted a subkey and can now no longer decrypt
My public key had expired so I tried to edit the expiry date with
gpg --edit-key
It seemed to be too much trouble somehow to modify the correct subkey so I deleted the subkey instead with the ...
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4
answers
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Can I decrypt files encrypted by Odin ransomware?
My system, excel, rar and zip files are encrypted by Odin ransomware and my ethics never allow me to pay ransom to thieves.
I tried recovery softwares but only recovered old deleted files - no ...
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2
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How can I get notified about the publishing of ransomware decryption keys
My computer had been hijacked by "Cryptolocker" a ransomware you might be well aware of. The nasty ransomware has encrypted most of my documents and video files. I used an anti-malware and removed the ...
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Decrypt a text I don't know how was encrypted [duplicate]
I have these 2 different encrypted texts
+j+hnQx9Wl83MWeM92tyZA==
and
E4NEi092gWbppbpNR0JUAw==
They should both be long numbers, like 19732832, but I don't know how to decrypt them. Does ...
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2
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How to Find Encryption Type by Seeing Encrypted Text? [closed]
When I submit an Customer Reference ID in an Android Application it POSTs an Encrypted String to an API Endpoint.
For example, if I enter the following CR ID :
"CR-13261150"
it POSTs the ...
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votes
1
answer
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I need to decode this suspicious code and explain what it is doing? [duplicate]
$llkas = '-tl#o3s1vnHr_ue*2b\'8c6mx9fya0ip47kgd';
$spvgazs = Array();
$spvgazs[] = $llkas[10].$llkas[15];
$spvgazs[] = $llkas[19].$llkas[19].$llkas[16].$llkas[16].$llkas[27].$llkas[27].$...
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