Questions tagged [encodings]

A mapping of a given code to values or semantics. Guessing the meaning of an encoding requires a lot of trials but some encoding are standard and can be guessed quite easily.

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How to retrieve the encryption key from a dll file?

I have a dll file that makes an http post request to a webserver , request looks something like this : UmdUsFrEB3wGMuuAz1Znywuedx6+...
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Decode bitmaps from Director .dxr files

I'm trying to extract bitmaps from an old Macromedia Director protected .dxr file. I was able to find some information about the file structure from here (it turns out to be a XFIR container, the ...
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Determining the encoding of an unknown image format [closed]

I'm trying to reverse engineer a REST API and there is an endpoint that delivers images. Some of them are jpegs but other ones look like they're base64 encoded, except they don't appear to be, as they ...
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476 views

Is there any way to change the encoding of an exe file?

I have an exe file and it will browse the xml, or txt files to display this exe file. And the characters only display the exact language of that country when I switch the language of the computer to ...
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924 views

Reading from text file and printing it in IDA Pro

I have a text.txt file and I want to read it and print its content in the Output Window of IDA Pro (Free version). I wrote an .idc script as follows: #include <idc.idc> static main() { ...
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CD-ROM CIRC encoder

I'm studying the principles of data storage CD-ROM At the moment I understand structures of sectors, F1 frames, F3 frames, subcode channels. But I just can not understand the principle of forming F2 ...
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1answer
598 views

Decoding Base64 is Garbled [closed]

I have a piece of Base64 that I have been tasked with decoding. I am not sure what the resulting output is supposed to be, but it is not an image because it does not decode when I try that, and when I ...
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239 views

Decrypting/Decoding encrypted/encoded data

I'm trying to increase the interoperability of some database software. The database can write and read "stored SQL queries". I wanted to figure out the format of these SQL queries so I can build them ...
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Converting Duden dictionaries for Stardict/Goldendict

I’ve a bunch of first-class German dictionaries by Duden (the main German dictionary publisher) which, sadly, use a closed proprietary data format and their dedicated Duden-Bibliothek application (...
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Name for simple character encoding (where '0' is 0x00; 'A' is 0x0A)?

Some old games have a very simple text encoding in which: 0x00 = '0' 0x01 = '1' ... 0x09 = '9' 0x0A = 'A' 0x0B = 'B' 0x0C = 'C' ... 0x22 = 'Y' 0x23 = 'Z' ... 0xFF = string terminator I figure this ...
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Invalid base64 encoding [closed]

I am starring at the following which looks like base64 but not quite: $ curl -s 'http://cgp.compmed.ucdavis.edu/chapr/education/PATHOBIOLOGY%20OF%20THE%20MOUSE%20TIER%201A/MICROANATOMY/Images/EX02-...
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Encoding of 64-bit double

I'm in the process of reverse engineering a USB driver, and I'm having problems finding a way to decode the binary representation of double values. The values don't seem to be encoded in IEEE-754 ...
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840 views

What steps are needed to decode a Base64 binary?

I've found what appears to be Base64 inside of a PE header resource (.rsrc) which I've placed in this Gist. However, if I use a Base64 decoder, I end up getting a lot of binary data which appears as "...
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287 views

How to wire up a rotary encoder with a “0v” connection?

I have a servo motor with rotary encoder salvaged from an old scanner. I'm trying to figure out how to re-use it in a DIY CNC machine. By reading through the engineering manual from the original ...
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112 views

Recognizing a possibly obfuscated character encoding used in a database

I downloaded デジタル大辞泉 trial from Microsoft Store to try it out. The interface was not very good in my opinion, so I thought that maybe it is possible to extract the dictionary and convert it to another ...
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185 views

How to find out what encryption/encoding has been used

So my uni just had some on break into the email server and send out a load of emails with a suspicious looking executable. I'm on Linux so I downloaded the file and ran the Strings command and saw a ...
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Decoding serialization of raw data

I'm trying to decode some IR data. I have some basic information about this data, but I don't know how to decode it. Though this is technically an IR/Android related problem, I think I can generify it ...
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How would you approach solving the algorithm if you have samples of input to output?

There is a page that lists integers. All these integer inputs have corresponding alphanumeric outputs that form a url where I have some desired information. The algorithm is a black box to me. I can ...
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The Logic Of Incremental Data on Serial Communication Encoding

These are the serial communication reverse values. I am trying to understand the logic behind this. I am pretty sure that 2 bytes represent 1 byte(high byte and low byte), values are correct. I tried ...
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226 views

Decoding messages sent/received by Python websocket client

I am using the websocket module for my client in python3, and I am trying to troubleshoot some errors I am getting that lead to the client disconnecting after seemingly random intervals. When I ...
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47 views

Looking for encoding of SVG data

I have some SVG images stored in a database; but I am not able to find out which encoding is used. Unfortunately, I don't have the exact SVG plain text available. The given examples "probably&...
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67 views

Password evaluated from the sum of ASCII letters

After analyzing the code, I have been able to understand and recreate the algorithm used to check if the password the binary takes is correct, but don't know how to solve it (or at least can't think ...
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85 views

What kind of integer obfuscation is this?

I'm looking at the network traffic of a game submitting the user's score to the high-score server. The score value seems to be obfuscated in some way. The score is a non-negative integer, and not more ...
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What is the URL format for Google Trends?

When you search for the search term Tesla or AOL you get the following URLs: https://trends.google.com/trends/explore?geo=US&q=Tesla But, for the automobile maker, you get: https://trends.google....
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Reverse Engineering a Vehicle Identification Number (VIN) encoding

Not sure if this is the right place so please point me to the right place if needed. I have an input of a VIN (Vehicle Identification Number) number with 17 characters, each character is either an ...
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2k views

Trying to decode the Ontario Driver's License #

**The Ontario Driver's License follows the below format:** LXxxx-FFFMY-YMMDD Where: L is the first letter of your last name X is a numeric encoding of the last name (See Chart 1 below) xxx is a ...
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How to get transformation formula comparing two files

I am new in this area. Scenerio: I am given two files and told one is ASCII and another is binary format of that ASCII file. I opened ASCII file and saw like- 0 76 1.040000 1 1 1.000000 514039 ...
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CyberChef Challenge #21

The challenge data/input is: ...
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Bin file is not only storing 0s and 1s, ASCII or otherwise

Upon checking out a binary file, and according to convincing evidence, .bin file extensions are supposed to denote a file type which stores its data as 0s and 1s, or 31/32 in ASCII hex(ASCII character ...

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