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Questions tagged [decryption]

Process of decoding an encrypted message with an authorized access (knowledge of the protocol, the encryption algorithm and the key).

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Reverse engineering AES128 Key Derrivation from MAC Address

Using Ghidra I have acquired the following Psuedo-code decompilation output from an ELF 32-bit LSB executable, ARM aarch64, version 1 (SYSV), statically linked, not stripped. From this decompilation I ...
Seb's user avatar
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1 answer
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struggle with Decrypt Byte Array with a key of unity game using il2cpp

So i'm trying to reverse an unity game using il2cpp to get the assets of it. After some reverse stuff i found that the asset's (especially here the png image) byte array get encrypted with a key and i ...
NoName's user avatar
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Decoding API headers of unknown encoding?

I'm using mitmproxy to monitor facebook messenger app traffic on my android. Firstly I had to enable whitehat settings to use it. After that I found some request headers has some unknown value in body....
Wojciech Wolski's user avatar
1 vote
0 answers
101 views

How to decrypt Zyxel's 'Backup_Restore' config file?

I have a VMG3625-T50B running an ISP-dedicated firmware version (V550ABTL0b2r). I managed to get the supervisor password yet I can't enable open an SSH port because my SP disabled that option. I've ...
Khalid's user avatar
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82 views

How to get decryption keys from an offline player?

I am just starting to learn reverse engineering from lena lectures. I have 2 encrypted sample vids and an offline player which is able to decrypt the videos and play them, is there any way,I can get ...
No One In particular's user avatar
1 vote
0 answers
78 views

Is this (router) firmware file encrypted?

I am new to reverse engineering. Nice community you folks have here. I am trying to determine if this, VOX3v_CLOSED_19.2.0203.3261005.rbi (https://vfcc.publicacs.vodafone.co.uk/firmware/UK-CC/...
Mohamed Bana's user avatar
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81 views

Deobfuscating WPF obfuscated code

The project uses WPF : What should i do for XAML links de4dot supporting that ? I have been trying to deobfuscate an encrypted code for days but no matter what I did, I bypassed the debugger ...
Waltcher's user avatar
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326 views

How to decompile python .exe who compiled by Nuitka?

i have one file named hello.exe and compiled using nuitka by cmd : python -m nuitka --mingw64 --windows-icon-from-ico=ICON.ico --onefile --windows-company-name=NAME --windows-product-version=1.0 --...
Teswadha's user avatar
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0 answers
49 views

Need help when reading .sam file of cocos2D game

so recently I tried to reverse a dead game apk to get their animation cause it's so unique that me and my friend want to remake it. But it took so long to just take each part of the image and combine ...
NoName's user avatar
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277 views

How to decrypt xxtea encrypt lua file from cocos2D game

I'm trying to decipher this game because it's about to be discontinued I tried to decompile the apk looking for image resources and lua files. Looking at the received title I guess that the game was ...
Neit's user avatar
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1 answer
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I need to decipher my Huawei hg8245h modem sip phone password [closed]

I have a Huawei hg8245h modem and unfortunately, I have forgotten my sip phone password and my ISP does not provide it to me. I have downloaded the modem configuration and this is the section related ...
WillingGood's user avatar
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1 answer
361 views

i need software to decode this subtitle xml file, anyone know what it encodes with?

This is a subtitle file encoded by xml, is there any way to decode this xml file to srt? Subtitle link xml
Đức Nguyễn's user avatar
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0 answers
64 views

Decrypting encrypted PHP?

I was playing around with a tool I use, and hit a weird error with their wrapper script, so I thought I'd go see what it was doing. Only to discover something I've never seen before. The script looks ...
XeroxDucati's user avatar
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142 views

Find encryption method, Decrypt Non-Cyrillic/Non readable characters

I have an old file, I know what it contains, I know that this is encoding without a password, any privatekey and secretkey. This is some kind of encoded file/string, possibly converted several times. ...
wh1tedance's user avatar
2 votes
1 answer
611 views

Need help decrypt xxtea encrypted Lua file from cocos2D game

I was trying to recreate this game because it was down but I really love it. I tried to decompile the apk and I got the java code and the assets then I looked around the code and found out the main ...
NoName's user avatar
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501 views

Huawei Router EG8145V5 PPPoE Password Decryption

I want to know my PPPoE password but my IPS refuses to tell me. I went to the setup page and did inspect element and changed the type=password to text and found my password, but it is encrypted form. ...
Downloadit's user avatar
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1 answer
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Trying to reverse encypter to decrytper in C. Can't figure out what I'm missing

Goal: Trying to reverse encrypter to decrypter that successfully decrypts. This is the pseudo-code of the disassembled encrypting program. There are no function calls, and I've been able to somewhat ...
Brandon Gregory's user avatar
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77 views

unable to read otml file

I'm trying to open a game file (.otml) that seems to be encrypted. When opening one of the files with notepad++ I get the following text ENC3ž4®£i{Ñ7 : £i{Ñš²É ‚NR“ÿUªˆ¿+ó6ug¾°¦.ë´7º™ïÐvä@6ÿ¾>ZEò ...
sikz's user avatar
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0 answers
282 views

Reverse engineering a game server

It was announced recently that the UGC servers for Mirror's Edge Catalyst servers are going to shut down on December 8th, 2023 for all platforms. I want to reverse engineer the game server and build a ...
Loomeh's user avatar
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12 votes
3 answers
4k views

McDonald's receipt codes

Receipts from McDonald's in the UK include a code that allows you to complete an online survey as shown in the attached image (in the green box): After gathering and comparing several receipts I have ...
user7290573's user avatar
2 votes
0 answers
202 views

APK / Decrypting [closed]

I'm new to Reverse Engineering, so I apologize if something is wrong. There is a free program that requires a license key, which can no longer be bought and obtained. I'm trying to write a KeyGen or ...
wh1tedance's user avatar
2 votes
1 answer
3k views

Decrypt the config file of ZTE F660 v9

I need support to decrypt the config file of ZTE F660 v9 router. I have telnet access to the router and the below link consists of the following files. Link config.bin, paramtag, cspd, db_user_cfg.xml,...
zhanshi123's user avatar
1 vote
0 answers
166 views

Just router username & password please

I want to convert my ISP hg8240t5 given router from route WAN to bridge WAN mode and they are using PPPoE connection. I also have a backup of the configuration and its file name is "hw_ctree.xml&...
qatar2022's user avatar
2 votes
0 answers
48 views

I want to learn how to program by orienting myself to the task of reverse engineering

I have to learn programming from scratch and I want to orient my learning in order to be able to reverse engineer to break obfuscators. It would be helpful if you could recommend me what languages, ...
Yosho's user avatar
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3 votes
0 answers
76 views

How to read the content of these files?

I am looking for a way to read the content of these two files. If that is possible, please let me know. Google Drive link for the files
zhanshi123's user avatar
3 votes
0 answers
204 views

How to decrypt query string of an url

I need to decrypt the encoded part of query string i.e. Q7eM0euncHNyrhJPjN06lw== and sWmYdMUi01BJplzumEaxTw== from the following urls? https://XXXX/deed-check/view-deed-summary?encApplicationId=...
Learner's user avatar
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2 votes
0 answers
80 views

Decoding set of byte arrays representing light spectrum

I have a small spectrometer that measures in the spectral range of 740-1070nm. The device is commercial, and used to send the raw data to the manufacturer's server for decoding, but that does not seem ...
J-M's user avatar
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4 votes
0 answers
65 views

Decyphering 8kbps audio file format used in Solar Chanting Lotus

I'm trying to reverse engineer a solar powered chanting lotus flower so that I might replace the built in audio with something more interesting. The main chip (JL16B-083A - haven't been able to find ...
Captain Lavender's user avatar
4 votes
2 answers
5k views

Decrypt PPPoE password of Huawei ONT HG8145V5

I am trying to get the PPPoE password of my Huawei ONT, model HG8145V5. When I access the ONT user interface and go to WAN settings, I can clearly see the PPPoE username. However, the password is ...
Brandon's user avatar
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2 votes
1 answer
2k views

How to decrypt PPPoE password of Huawei HG8245W5-6T?

Can someone help me to decrypt the PPPoE password from a Huawei HG8245W5-6T fiber optic ont. The password has this format: "$2lT_)L2t{NViWZSYEt@"/qwP82OAN)<s+mv~AVu["$&...
beo59's user avatar
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2 votes
0 answers
113 views

How to find passphrase for Lua maked in cocos game?

I tried to decompile and find main.lua in file (link below) with IDA Pro but it wasn't helpful, because every lua file has it own signature and there is no key near string main.lua. I also tried to ...
Alexander's user avatar
2 votes
0 answers
489 views

Extract assets images from a games APK [closed]

I'm trying to remove some images from an android game, but when I try to view them in a hexadecimal viewer I see that they don't contain a PNG header, so I can't view them through the python PIL ...
amateur's user avatar
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2 votes
0 answers
198 views

Find decryption key of coco2d lua

I am trying to find the encryption key for a lua file from a .so file But I am new in this field. I visit websites and found that key is inside xxteaDecrypt function I found two xxteaDecrypt function. ...
Ritesh's user avatar
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1 vote
0 answers
177 views

Decode encoded XHR/Ajax response payload

I'm trying to access a site using it's API with Insomnia client, but some XHR responses are encoded, it seems. I don't know the exact algorithm that's being used (but it's not base64, I tried decoding)...
Suresh-Patil's user avatar
6 votes
1 answer
2k views

Reversing an RSA function throws pkcs decoding error

I'm working my way through reversing a toy challenge, and I find myself stuck. The app is pretty simple, it spits out a blob of text (e.g. "3b880a90e476d66569d9d5dfb5cd755af3f..."). Dumping ...
XeroxDucati's user avatar
1 vote
1 answer
548 views

HELP Decrypting Lua files

i'm trying to mod a game named : DDTank Mobile, which is on both Android & IOS. This game runs on cocos2d engine, the thing is the lua files are encrypted. I read somewhere to look for 'sign' at ...
TroPicz MoDzy's user avatar
2 votes
0 answers
121 views

How to decrypt a PIE file for a game's assets?

I want to see the assets for Garbage Pail Kids: Mad Mike and the Quest for Stale Gum I noticed the file was in PIE format. I tried opening them with every program I have, but nothing works; And add ...
A Geek's Gamestream's user avatar
4 votes
0 answers
90 views

Decrypt Keybindings for EVE Online

I've had this idea for a while for a tool I'd like to make to assist people in getting used to keybinds in EVE Online. Not sure how useful it'd actually be, but seems like a fun project nonetheless. I'...
Dealman's user avatar
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2 votes
0 answers
39 views

Find out what is this binary database entry and what format it is

the following varbinary "BUFFER" of a database entry is for an article. FIELD_0 is in plain text and the item name is "1", which I created with the item management software. [...
Chrischi's user avatar
2 votes
0 answers
123 views

Which encryption method has been used?

Anyone please can you tell me which method used to encrypt this kind of codes? im really confused, that would really helps me. This encrypted data created by a PHP. Ibª„bÏ}◊Kì-yNî˜>Efi¶ØÁÇ_^§ ...
Mr Xero's user avatar
  • 21
2 votes
1 answer
752 views

Huawei HG8245W5 Router PPPoE Password Decryption

My ISP is not providing pppoe accounts but I need to bridge to my server. I only have encrypted password. Password is " $2'4e0YX=y6Q]$\9$c#-+F-h2&Tva4"GYn+qY)x>W$ " Can anyone ...
Aol's user avatar
  • 21
2 votes
1 answer
1k views

How can I decrypt password of HG8145V5 PPPoE?

I want to convert my ISP given router from route WAN to bridge WAN mode and they are using PPPoE connection. I also have backup of configuration and its file name is "hw_ctree.xml". I was ...
Yatin Goyal's user avatar
2 votes
0 answers
2k views

Huawei HG8145V5 Router PPPoE Password Decryption

My ISP is not providing pppoe accounts but I need to bridge to my server. I only have encrypted password. Password is " $26w5`KU6gm#C73JK48OG8_jdY'dQePTOu$0'G8q\V$ " Can anyone help me ...
Maung Maung Myat San's user avatar
1 vote
0 answers
32 views

I have an application that views an encrypted document and stored it as an (encrypted) pdf

When I load this application with lldb, surprisingly no anti-debugger techniques scuttle it. I've even managed to find an interesting breakpoint to set... break set -r AES_decrypt -s /usr/lib/...
John O's user avatar
  • 199
0 votes
1 answer
605 views

Extract resource images from a games APK

I'm looking to pull the images off of the game "Summoners War" to use for wallpapers and such. I have access to the images themselves, but they seem to be encrypted and cannot be viewed. ...
KevinT's user avatar
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3 votes
0 answers
589 views

How to decrypt cocos2d luac type?

I am new with IDA and cocos2d. Since I have learned how to decrypt cocos2d Lua file, I found xxtea tool with Sign and Key and how to find Sign header in some game in Lua file. But that method does not ...
Lan Cuong's user avatar
1 vote
0 answers
93 views

How exactly Hex editor is used?

I'm new to reverse engineering. So I decided to start with some game files in my computer. The main goal was to understand how hex editor used to identify files and extract needed data. In my case I ...
Namlind's user avatar
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2 votes
0 answers
8k views

Extracting ZTE F670L router's config.bin file

I want to enable telnet in my router (ZTE F670L V9.0.11P1N20D), So, I backup my router and i have a file config.bin, Size 23.5KB. I fired up kali and when i issue this command: $ file config.bin ...
Chirantan's user avatar
1 vote
0 answers
358 views

How to decode/decrypt/decipher an unknown 83 bytes long UDP payload?

I have an unknown 83 bytes long payload which I would like to decode/decrypt/decipher… I got an alarm system from vendor www.jablotron.com, an old device, but it works perfectly. It’s JA-63 with a LAN ...
user avatar
1 vote
0 answers
100 views

Retrieve all parameters of specific function: How to automate

I'm trying to reverse engineer.NET binary with dnspy. I have a decryption routine that is used to display useful strings. It takes one integer value as a parameter and uses it in the decryption ...
Raafat's user avatar
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