Questions tagged [hexadecimal]

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Wifi: converting hex to password

My router asks for a WPA2 password insisting on exactly 64 hexadecimal characters. Can anyone recommend a straightforward way of getting it to ask me for a normal alphanumeric password?
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1answer
100 views

The working of the mount command and the FAT12 filesystem

I was experimenting around with filesystems in linux. I want to understand a few issues. Here are the commands that I have used: truncate disk.img -s 1M mkfs.vfat -F12 -S512 -s1 disk.img #I have ...
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37 views

Hexadecimal in ASCII

am working with a very minimal version of linux borph, I use this OS to interact with a FPGA. I could read some registers inside the FPGA using a process who ask for the data via telnet and gives me ...
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26 views

AHK Copy & Paste mouse location

I've made the simple script to display the hex color of my current mouse position is there anyway I'd be able to make it so that it copy & pastes the hex code if I press a certain key?
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1answer
67 views

Write byte sequence to file via command line?

What's the quickest way to write a sequence of bytes from the commandline into a file? For example consider an input string in the following format: DE AD BE EF How can I write this to a file, so ...
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28 views

Re-archive files in ZIP or RAR format with the exact same parameters as an incomplete archive as an attempt to recover it

Let's say there is a ZIP or RAR archive on a file sharing network, an old archive which has been out there for a long time, containing hundreds of small files (JPG pictures typically), and some parts ...
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28 views

EDID Understanding

I am trying to reprogram the EDID for 320/240px, I am using Deltacast to try to get he Hex data for the 320/240px lcd screen. Below are the timings given in the LCD's documentation enter image ...
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1answer
57 views

Reverse engineering unknown hex/binary representation to decimal

I am decoding a device that pumps out location data via network packets. Lets say we have want to decode altitude. The altitude packet is 4 bytes. So the info in hex is. 0x05 0x79 = 5.945313(meters) ...
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1answer
165 views

MikroTik RB750Gr3 - Slow WAN Speeds after Upgrade

I am experiencing some issues with my MikroTik HEX RB750Gr3. I have never experiencing any issues with using the device until I updated my firmware for the first time. I was completing frequent OS ...
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0answers
127 views

Tesseract: OCR hex and binary strings from old documents

I have some questions about Tesseract Context I am currently working on an old cryptographic algorithm from East Germany (GDR) which was developed in the 80s. I implemented the algorithm in C#. Now ...
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1answer
282 views

Finding Hex Keycodes

I am trying to create a program that remaps keys for Windows but I am struggling to find the hex values. I know that caps lock is 3A but when I look up an ascii table it says 3A is colon. Why is this ...
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2answers
256 views

Hexadecimal Variable

Okay so i tried to make a loop which increases an variable from 0 to FF (0x00 to 0xFF would also work): ... declare -i register=0 while [ 255 -ge $register ] do sudo mono ec-probe.exe read 0x+$...
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2answers
389 views

Excel - How to convert 4 Hex numbers (16 bits) to 2 Hex number (8 bits)?

How do I convert from a hex value (FACE) to (CE) in Excel? I tried Dec2Hex (64206,4) -- I got FACE which is ok. I tried Dec2Hex (64206,3) -- I got #NUM! which is incorrect.
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2k views

View serial device output in console in hex

I'm able to convert my serial device output to hex format doing these two commands: cat /dev/ttyUSB0 > data.dump #send some data to serial device, and interrupt cat using Ctrl+C after some time ...
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191 views

Changing Duration of Mp4 - Hex Editor

Is there a way to make my mp4 file seem to have a longer or shorter duration than it actually has? I tried playing around with an Hex Editor, but being a noob i couldn't make it work.
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1answer
882 views

14 digit Hex to decimal in Excel

I have 14 digit Hexadecimal numbers in Excel which I want to convert to a decimal number. For example in C2 the number is 0438E96A095180 and that has to be 1188475064373632 in decimal. I have tried ...
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1answer
2k views

How do convert unsigned hex to decimal in Windows 10 Calculator?

I'm using the Windows 10 Calculator in Programmer mode to convert hex to decimal. The issue is the calculator defaults to signed. Set to: DWORD HEX: A08A 5A52 Result: DEC: ‭-1601545646‬ ...
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1answer
163 views

Removing spaces, comma, decimals and euro symbol in a cell

I've googled around and tried a lot of things but they seem to have no effect. I have column that has values in this format: 897,00 € I need to format it so that it does NOT have spaces or the euro ...
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2k views

How to replace Hex Characters in Notepad++

var x = { 'leaderboardNick': { 'Player': '\x72\x67\x62\x61\x28\x32\x32\x32\x2c\x20\x32\x33\x2c\x20\x38\x38\x2c\x20\x31\x29', '\u3010\u20B1\u20AC\u3011': #FFF, }, 'emoticons'...
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1answer
6k views

Convert hexdump to tar file

I have a hex dump as 1f8b 0800 3416 1259 0003 edcf 310e c230 0c85 61cf 9c22 1708 b2d3 909e a7a2 5d90 1028 7581 e353 d401 2660 a910 d2ff 2d6f f01b 9ec7 615f 07df facd 6535 3a2b 253f d2da 9dbe e622 ...
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1answer
6k views

Convert Hex string value to Hex number

Say A1 contains the string "f26e". It's a hex value that I want to use in the Unichar function, but since it's a string, I would need to convert it as a number (UNICHAR(A1) returns an error in value). ...
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2answers
1k views

0x for 8 bit, what is used for 7 bit? [closed]

I am writing some technical documentation and describing a format for I2c 7 bit addressing mode. This is also related to ASCII 7 bit encoding, but that is a side note. I2c uses 7 bits (or 10 bits not ...
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1answer
93 views

What are the particular limitations of Hexadecimal storage on a hard drive? [duplicate]

I'll preface by saying I am not a computer specialist. My question is posted as a point of curiosity. Scouring the web for answers, I have seen posted that hexadecimal could be used to store ...
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87 views

What is the most efficient manner to STORE a large numerical sequence on a hard drive?

I will preface by saying I am not a computer specialist; I ask mainly as a point of curiosity. The premise here to so find the most efficient manner for storing a sample 200-digit long numerical ...
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1answer
560 views

How to view sections & addresses of .bin and .hex files in Linux?

I have started reversing a binary. I dumped the contents as hex using xxd into a file I made with extension .hex, then used objdump to disassemble that .hex file into assembly code, and put this into ...
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3answers
5k views

Hexadecimal format and storage on a computer hard drive: Does it store in half the bytes?

Allow me to preface that I am not a computer specialist. More than anything, I am curious as to the information. In a conversation with a computer science specialist, I was told that a string of ...
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0answers
170 views

I am testing a serial port device and want to know how can I understand the data?

I have attached a device to my MacBook over USB-Serial device and I am trying to get the data in the SerialTools app (https://itunes.apple.com/in/app/serialtools/id611021963?mt=12). My device is ...
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1answer
718 views

How can I convert this RIFF WAVE .bin file?

I'm trying to extract some audio from a program, and I've got as far as getting a .bin file. When I open this file with a hex editor, the first line is RIFF ÷! WAVEfmt 4. I've done some research, and ...
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0answers
729 views

Control Amplifier from Computer via RS232

I got a second hand Rotel RSX-1056 amplifier that I would like to control from my computer (because I don't have the remote). The amplifier has a serial port (RS232) and on the web I was able to find ...
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2answers
759 views

What's up with different hexadecimal encoding schemes?

So I've been working with cryptography for about a year now, learning as much as I can about all I can. A lot of things that I've come across (like the hexadecimally [not a word, but shh] encoded ...
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12answers
16k views

Why are hex editors called binary editors?

Hex and binary are two different bases. Hex, in my understanding, is simply an easier to use and more convenient version of binary. However, I often hear that hex editors are binary editors. If ...
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0answers
339 views

Are there different standards to calculate the hex WEP key from an ASCII passphrase?

Are there different standards/methods to calculate a WEP key from a passphrase? Or why is it, that the 128 bit key generated on http://www.andrewscompanies.com/tools/wep.asp differ from the 128 bit ...
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1answer
230 views

What is the fr signature in zip files?

I use the 101 editor for easily editing zip file's properties. I noticed there being one of the "properties" in a structure called ZIPFILERECORD. The structure has the value of the name of contents of ...
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173 views

What file format starts with 0xFEEDBABE?

On my router, /mnt/jffs2/rg_conf1 and rg_conf2 begin with the following bytes: FE ED BA BE 00 00 ## ## 00 ## ## ## 00 ## ## ## 00 00 00 00 72 67 5F 63 6F 6E 66 where ## is a non-ascii non-zero byte, ...
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2answers
737 views

Unique Linux system identifier

I’m encouraging my students to install a Linux distro in their computers. To be sure they have completed the task, I ask them to execute this command to generate a unique identifier: echo $(sudo ...
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1k views

Converting serial port binary hex to serial port ASCII decimal

I'd like to convert a binary hexadecimal data string on one serial port to an ASCII decimal string output to another serial port. Is there already an application that does this? If not, would it be ...
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0answers
3k views

Sublime text opens an xml file in HEX view

I have an xml file(rename to .xml) and I need to open this in Sublime text. But if I try to open and view it, it displays the data in Hexadecimal values. But I want this to be displayed in xml format. ...
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2answers
31k views

How to Enter Hex Colour Values in Excel?

I've googled the topic and searched on Super User for a preëxistent answer, and yet I cannot for the life of me figure this out. What I want to do is simple: just assign a particular colour in the ...
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1answer
203 views

How accurate is content sniffing in order to determine filetype?

I need to identify the mime-type of extensionless files(document fileformats such as PDF, doc, docx etc), and I am wondering how accurate known file-signatures are? What I will do is to create a map ...
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1answer
401 views

Pasting Hex Colors Into OpenOffice

I'm attempting to paste a very large table of data containing names of colors and their HTML (hex) equivalent into OpenOffice, but it continues to format my colors as weird data types. For example, "...
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0answers
2k views

Corrupt CR2\JPEG file - correct size but all zeros in Hex editor

I have an SD card with some RAW images (.CR2) and JPEG's that show the correct size but won't open (invalid image). Hex editor shows all zeros in these files. Before you answer the obvious "All zeros ...
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2answers
2k views

How convert decimal to Hexadecimal in Ubuntu?

I am using a bash file in Ubuntu and i wrote an executable code in this file that must use some Hexadecimal number. But I just have decimal numbers so I want to convert decimal numbers to Hexadecimal ...
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3answers
3k views

Proper way to denote base 10 (decimal) in computer science [closed]

The proper way to denote hex, or base 16, is to prepend 0x Conversely, what is the proper way to denote decimal/base 10?
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2answers
1k views

NTFS MAC Times in Hexadecimal

I am using EnCase and a Hex Editor to analyse a virtual drive. EnCase says that the this hexadecimal: 5FBF60C54F2CCF01 is the date/time (mm/dd/yy): 02/17/14 09:18:54 (PM) I have worked out date/...
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1answer
682 views

Encode 1920x1080 into edid format

The EDID format specifies "byte 38: X resolution, divided by 8, less 31 (256–2288 pixels, value 00 is reserved and should not be used) byte 39: X:Y pixel ratio: 00=16:10; 01=4:3; 10=5:4; 11=16:9." ...
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2answers
2k views

Excel: how to remove leading characters of a string with a function?

I have a text column in Excel full of hexademical values like this: 0000000000000c10 00000000000036f0 00000000000274da 00000000000379e0 Which function can help me strip the leading 0's up until the ...
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2answers
2k views

How to convert a column of hex to dec in gawk, strtonum in gawk gives erroneous results

I am trying to script a database from a network stream. The network stream after being heavily sed'd drops a three column file that looks something like this called file.db 123.123.123.123,computer ...
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2answers
9k views

EOF ASCII/HEX code in text files

As far as know in the end of all files, specially text files, there is a Hex code for EOF or NULL character. And when we want to write a program and read the contents of a text file, we send the read ...
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1answer
3k views

Get HEX code of char using only native Windows 7 tools

I have a text file with a weird character that isn't printable. I want to know its HEX code. How can I know it without installing software like HexView or programming?
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4answers
8k views

What is the hexadecimal system?

What is the hexadecimal system and why is it used so much in computing? I know that computers use 0s and 1s to store data, so how come we use hexadecimal?