Questions tagged [hashing]

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How to covert each password into their SHA256 hashes using a simple tool

Is there a tool to convert each password in a text file into sha256 hash without writing any program? I want to convert each password in "rockyou" password file into their SHA256 form line ...
Not a Salmon Fish's user avatar
2 votes
1 answer
291 views

How to calculate hash value of a directory, is it possible?

I need to send someone a 10GB file that has inside several thousands of files. I know that in Ubuntu you can use the next command in the terminal: md5sum <directory_name> and this returns a hash....
Linux's user avatar
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0 answers
201 views

Problem in using zip2john tool to take hash values

I have take a zip file from NFS port using sudo mount -t nfs 192.168.1.105/backup /tmp/kevgir . After that, I got backup.tar.bz2.zip file in /tmp/kevgir directory. I crack the zip file using fcrackzip ...
Not a Salmon Fish's user avatar
0 votes
0 answers
112 views

How to crack an Active Directory service ticket with Hashcat?

I'm attempting to crack a service ticket with Hashcat, however not entirely sure about the correct command. The ticket is TicketByteHexStream : Hash : $krb5tgs$23$*UNKNOWN$UNKNOWN$...
TMOTTM's user avatar
  • 195
0 votes
3 answers
123 views

Is it safe to share a SHA-256 hash to check that a sensative number has been copied correctly? [closed]

Say I would like to receive a sensitive number from someone (e.g. bank account details). Would it be safe to share the number over the phone and then send an email with the SHA-256 hash of the number ...
maxbear123's user avatar
0 votes
1 answer
75 views

Is there a chance for two different files have same byte data?

I am using Node.js to read a file to bytedata (uint8array) and use SHA256 to hash the file’s bytedata like this: ad505ee6067fba3f6fc20506d3379e190e087aeffe5d958ab9f2f3ed3800sa4f I am wondering if it ...
Neo Liu's user avatar
  • 103
0 votes
1 answer
160 views

How do i delete everything after the last occurance of # in a name?

I've got many files, all start with the date in the year-month-day format, then the name, and then a #with a string of numbers after it. Examples - 2018-03-24 - file name one #458934 Now, I've ...
Mark C's user avatar
  • 23
1 vote
2 answers
888 views

How 7zip generates hash for multiple files?

I have a zero size file. 7-zip generates da39a3ee5e6b4b0d3255bfef95601890afd80709 for it. It's fine. But if I select 2 zero size files, 7zip generates b47346ddbdd6961a64aa7edf2bc130205fb10f12 for them....
KeyKi's user avatar
  • 181
5 votes
1 answer
471 views

Everytime we restart the Linux server it looks like the root gets a new password hash

The other day I was asked by a friend to change their forgotten root password of their Linux server. I have done this procedure many times without a problem, but this time something strange happened ...
Kumar's user avatar
  • 51
0 votes
2 answers
3k views

How to generate MD5 hash with a salt in command line?

password: rose salt: jack123 MD5 hash value: bf57b6634a951e3ee7ff2bbfb6206ec0 The above-given output was generated on a website (http://md5.my-addr.com/md5_salted_hash-md5_salt_hash_generator_tool.php)...
Syskey Whiskey's user avatar
0 votes
2 answers
601 views

How to use Argon2 with salt from binary file?

In the Linux program Argon2, we need to supply the salt in the command line. This limits the salt to be printable characters. How can we use a binary string as the salt? # argon2 -h Usage: argon2 [-...
midnite's user avatar
  • 521
0 votes
1 answer
196 views

PowerShell script to compute partial MD4 checksums

I need a script that will read an input file and calculate MD4 checksums for each 9728000 bytes chunk, until the end of the file. I've done this previously by first extracting all 9728000 bytes chunks ...
GabrielB's user avatar
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0 answers
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Is a file Overlay a security threat?

How do you tell if the "Overlay" found on some files when searching the hash checksum on VirusTotal poses any threat? Would the Overlay be part of the signed file? Does the VT page ...
Eric's user avatar
  • 83
5 votes
1 answer
1k views

How is the .sha256 file on the download page for Inkscape used as a checksum?

In Windows 10 I would like to download and install Inkscape 1.1.2, verifying the installation file first. How do you view the contents of the .sha256 file (labeled 'sig' on the Inkscape download page) ...
Eric's user avatar
  • 83
1 vote
0 answers
3k views

SHA1, SHA256 or MD5 hash of Windows 7 SP1 installation ISO [closed]

I know that Windows 7 is end-of-life, but for software testing and other reasons, I need to reinstall a Windows 7 from the original ISO. I'm specifically looking for "Windows 7 Ultimate 64-bit ...
Basj's user avatar
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0 votes
2 answers
417 views

How can I hash/checksum any sequential download, without having to store the whole file locally?

How can I hash/checksum any sequential download, without having to store the whole file locally? It needs to work with any kind of sequential download, so "basic HTTP download" specific ...
Hiccup's user avatar
  • 291
0 votes
1 answer
137 views

`openssl digest | head -c 10` gives strange results

I'm using salted hashes of some memorable words as login/pass for anonymous accounts and just now I've noticed that sometimes I get no result for my method and then I've discovered that it was not ...
dm33tri's user avatar
  • 23
0 votes
1 answer
442 views

How to use scrypt or Argon for Openldap version < 2.4.5

I know that support for Argon2 was released with OpenLdap 2.4.5 according to this link https://bugs.openldap.org/show_bug.cgi?id=8575, but what if I want to use it with a previous version like 2.4.4 ...
user avatar
0 votes
3 answers
102 views

Does a repeated download protect against file corruption?

Disclosed real issue: I use a program called youtube-dl to download and archive videos from websites like YouTube and Twitch. To verify the integrity of the downloads, I download the same video twice ...
Uri's user avatar
  • 3
0 votes
0 answers
169 views

Is downloading a media file twice and comparing their hash values enough to verify their integrity?

I often use youtube-dl to download videos. As far as I know, there is no data integrity verfication built in to youtube-dl, so what I do to verify that a video isn't corrupted in some way after ...
Uri's user avatar
  • 3
12 votes
6 answers
11k views

For websites, is your password's hash computed on the client or the server side?

I was wondering if passwords' inputs are "converted" locally on the client/web browser side or on the server side. I'm pretty sure it's on the server side, but in that case it brings a ...
Ozwel's user avatar
  • 153
0 votes
0 answers
244 views

Comparing Files to a list of MD5 Hashes and getting a List as Result (where i can delete, copy, cut etc. the results)

I am searching for a solution for the following situation. I have a list of Hashes in a Text File and i want to find every File in a certain folder and subfolders that matches the Hashes from the Text ...
Sev's user avatar
  • 1
0 votes
1 answer
81 views

How to create verifiable unique hashes to include in any text?

Is there a way to include a unique hash along with say any post I make on reddit or any other public forum such that it can be verified by anyone to make sure that the message was posted by me. This ...
user221238's user avatar
1 vote
0 answers
498 views

Why is there a “Hash Sum mismatch” when I switch to a bridged network connection with VMWare on macOS?

I'd prefer to run my virtual machine in a bridged configuration so that it appears as another machine on my network. However, when I switch from a NATed configuration to a Bridged connection I get &...
Paul's user avatar
  • 205
-1 votes
1 answer
173 views

Cant we use md5 like hash algorithms to store big data?

i've read a paper about how hash algorithms word in general and i saw one strange thing. MD5 input length is unlimited and the output length are always the same so isn't that mean you can turn any ...
Sarkar's user avatar
  • 105
0 votes
1 answer
686 views

wrong hash pasted after copying on Windows 10

well i don't know how to explain it but always when i copy some hash from any hashin like base64 sha256 md5 etc even a txid of Bitcoin or Ethereum or Denarius my Windows 10 copy always paste wrong ...
Rodrigo's user avatar
2 votes
0 answers
11 views

What can make unmounted volumes SHA512 hashes differ while mounted volumes content SHA512 hashes are identical?

I am trying to configure Raspberry Pi OS to be read-only. In theory, both / and /boot are read-only. That being said, I am experiencing a strange discrepancy and can’t figure out what is happening. I ...
sunknudsen's user avatar
2 votes
1 answer
5k views

What kind of encoding is this (sha256 variant)?

I have some config files from the program ELOG where I want to change the password manually, using something like echo -n "newpassword" | sha256sum but the value is not the expected hexa. ...
dargaud's user avatar
  • 210
0 votes
1 answer
699 views

Comparing ISO image files in Windows 10 or MacOS

I have a number of CDs and DVDs (some RW and some not). Some of these disks contain simple files (such as .txt, .doc, etc) and others contain Dell system drivers, various Windows OS's and so on. I am ...
Shamioso's user avatar
0 votes
0 answers
95 views

Identify the hashing algorithm

I started working on a web scraping project and wanted to generate the URLs to be able to scrape the data. In my company's website, unique URL is by converting Listing ID to hash value of length "...
user1268076's user avatar
1 vote
1 answer
3k views

Enable checksum on FileZilla server

How can I enable checksum on the FileZilla server? I want to compare files after downloading on my Android device via FluentFTP library. The following checksum FTP commands are supported by this ...
Rusty Pythonic Script's user avatar
1 vote
1 answer
673 views

Enable MD5 or SHA1 hash functions in IIS

I have an IIS FTP server on my Windows 10. I am using a third party library FluentFTP to download a file. This library has a function to compare two files. And I am trying to compare my downloaded ...
Rusty Pythonic Script's user avatar
0 votes
1 answer
1k views

MD5 Hex to Base64 String

When I generate an MD5 hash with a plain-text (password), I get: $echo -n "password" | openssl dgst -md5 -binary | openssl enc -base64 X03MO1qnZdYdgyfeuILPmQ== This works fine if I knew ...
Zeigeist's user avatar
  • 103
1 vote
1 answer
178 views

Git History object hash recalculation

I'm trying to write a git history rewriter that I have completed Pack file Reader and Writer(also IDX file too) already. now I change a commit content and recalculate the hash of the new object and I ...
AliReza Beigy's user avatar
1 vote
1 answer
839 views

OpenSSL 1.1.1f measure the speed of SHA3 series

In my Ubuntu OpenSSL 1.1.1f 31 Mar 2020 is installed. I can measure the SHA256 speed by $ openssl speed sha256 Help list the following as message digest commands Message Digest commands (see the `...
kelalaka's user avatar
  • 397
0 votes
2 answers
439 views

customize output of command "openssl dgst -hmac"

I want to compute the HMAC of file A.txt and put it into file A_hmac.txt. I use openss library, now I have: openssl dgst -hmac "myHmacKey" -out A_hmac.txt A.txt The output, inside A_hmac....
Francesco Pagani's user avatar
1 vote
1 answer
2k views

Facing trouble in Configuring Tor to hash a new password in windows 10

I have tried and read various articles over the internet about hashing a new password for Tor. My tor is installed in local disk D I used the following commands in the command prompt D:\softwares\tor\...
Ritesh Mukhopadhyay's user avatar
0 votes
0 answers
165 views

How safe are Google's suggested passwords?

When I create a new account on any site, Google suggests a password under the option "Use suggested password". These passwords seem pretty strong but are hard to remember for a human. It ...
niamulbengali's user avatar
1 vote
1 answer
712 views

Encrypted RSA Private KEY - What is this?

I'm new on cryptography and I have so many trouble to understand a lot of things. On my screen, I use Openssl to generate RSA private key and I use DES3 to encrypt this private key. Then I type my ...
user avatar
0 votes
1 answer
1k views

Calculate KDF (just like a hash digest) such as PBKDF2 on command line? using openssl or otherwise

OpenSSL can be used to calculate a hash of a file or given input from the shell, like this: echo -n "abc" | openssl dgst -sha256 or openssl dgst -sha256 myfile.txt Can I also calculate a KDF ...
RocketNuts's user avatar
  • 1,052
1 vote
0 answers
38 views

What is the hash algorithm used by Google's mod_pagespeed? [closed]

Google's mod_pagespeed for Apache server produces the following url structure by appending an hash string: ...pagespeed.jc.bFZBaW2xkN.js What is the hash algorithm used in this process?
RafaSashi's user avatar
  • 151
1 vote
1 answer
117 views

How to use b2sum in keyed mode?

Considering using Blake2 (perhaps b2sum) in conjunction to openssl dgst -sha512 -hmac $key but I don’t see an option to enable keyed mode.
sunknudsen's user avatar
0 votes
0 answers
2k views

How can I read the contents of a crd file as plain text (i.e., recover my passwords)?

I lost all my passwords due to a dumb mistake I did yesterday. These passwords are really important. My computer has them saved under Windows credentials. However, I can't view passwords stored under ...
user avatar
3 votes
1 answer
1k views

Why do .sha256 hash files include asterisk before and after filenames?

I've seen .sha256 files for software such as: this_is_a_fake_sha256_hash_of_64_characters file_name.exe Or: this_is_a_fake_sha256_hash_of_64_characters *file_name.exe Or: ...
G. Luchini's user avatar
5 votes
1 answer
7k views

Is the ".sha256" file format formally defined somewhere? How should it be parsed?

I see a bunch of FOSS projects which have ".sha256" files. They look something like this: dsdfdfdsffdfsdfdsfdsfdsfdsfdsfds23r2ewrefdefdsfdsgfdsgffgfkgdfgg *meow.exe ...
Iago B.'s user avatar
  • 51
4 votes
2 answers
3k views

How do I crack a double encrypted Hash

I created a hash which is encrypted like this: $What_i_made=BCrypt(MD5(Plain Text Password)) and I wonder if it can be cracked. Currently, I thought of two ways: Brute force $What_i_made to get the ...
SmartOinker's user avatar
2 votes
2 answers
540 views

Looking for latest Blake2 b2sum.exe for Windows

I downloaded the b2sum file from blake2.net but it's from 2013 and doesn't seem to support the "compare" -c option. Several online references show several options which I cannot access with the ...
HTWingNut's user avatar
  • 459
0 votes
1 answer
1k views

Microsoft File Checksum Integrity Verifier (fciv.exe) not working/error

I'm attempting to hash every file on my C:\ drive with fciv.exe c:\ -r -md5 -xml hashes.xml The xml file does not initially exist, but after the command is entered, the xml file is created. The ...
ubernoob1010's user avatar
0 votes
1 answer
1k views

What is the OpenSSL equivalent of this given C# hashing code?

I've got C# server code which verifies a hash using the following logic. I have no control over the server code and cannot change it. string key = "xZBn34L4myg[...]cebvr7A=="; var hmacSha256 = new ...
Krumelur's user avatar
  • 189
0 votes
1 answer
7k views

7-Zip. h (Hash) command. Calculate hash values for files. When you use it?

I use 7-Zip. I work in Windows 10 Home 64-bit. I use command line. From 7-Zip help I know there is h (Hash) command. Calculate hash values for files. Syntax h [-scrc{Method}] [files] Supported ...
Konskoo's user avatar
  • 35