Questions tagged [hashsum]
Questions related to hashes, hash values or hash codes that are returned by hash functions such as SHA-1.
1
vote
0answers
17 views
GraphDriver & RootFS entry in manifest file
When the image is pushed to Docker registery, the content of each image layer is compressed and then the corresponding digest(SHA-256) is placed in manifest file.
Manifest file for redis repository ...
0
votes
1answer
55 views
How do I fix this error: “ipset v6.11: Hash is full, cannot add more elements”
When I run the update script for voipbl manually, I get this error from ipset: ipset v6.11: Hash is full, cannot add more elements. I am running it manually because some IPs that are on the blacklist ...
0
votes
0answers
36 views
What is the sha1sum -c equivalent with OpenSSL?
I generated checksums for a list of files and stored them a .sha1 file by using the following command:
openssl dgst -r -sha1 -out sums.sha1 *
which is the equivalent of:
sha1sum * > sums.sha1
...
0
votes
0answers
33 views
Continuously detect a change of chksum of files under folder with inotify-tools [duplicate]
I just installed inotify-tools.
I would like to continuously detect change of chksum of files under folder /path
Once a change was detect ( under /path ) then it will print
echo “chksum of files ...
-1
votes
1answer
42 views
do I use sha256sum or sha256hmac for file checksum
I have a text file with stuff in it
I want to checksum it and create a hash for later use to know if the file has changed, when used anywhere else
which to use? sha256sum myfile or sha256hmac myfile
2
votes
1answer
54 views
md5sum of /dev/sr1 different than ISO image?
After writing an ISO image using Brasero, I discovered that the md5sum of the target DVD is different than the ISO image, despite no readability errors.
What has caused that difference?
0
votes
1answer
32 views
Generate a sfv file with bash (crcs along with the paths)
How would I script something so that it gives me a list of crcs along with the paths, like an sfv file? I could code this in python but there is probably a simpler way in shell.
So far I have:
find ....
0
votes
1answer
53 views
In a bash script, how to use a variable inside a command and assign to a new variable?
I'm trying to store the MD5 of a variable into another variable. Between backticks and the more modern () notation, I cannot figure out how to assign the value of a variable run through a command to ...
0
votes
2answers
99 views
Fast hashing in awk?
I find it cool that someone has written MD5 in AWK: https://kaworu.ch/blog/2017/05/23/implementing-md5-in-AWK/
Unfortunately that one is quite slow. I am looking for a fast hashing tool for AWK that ...
0
votes
1answer
387 views
how to generate bcrypt 2a variation hash instead of 2y?
On my linux machine, I'm able to generate bcrypt hash from command line using htpassword
htpasswd -bnBC 10 "" password | tr -d ':\n'
however it generates "$2y$" but I need "$2a$" (bcrypt 2a). How ...
7
votes
5answers
525 views
Using pv with md5sum
I used md5sum with pv to check 4 GiB of files that are in the same directory:
md5sum dir/* | pv -s 4g | sort
The command completes successfully in about 28 seconds, but pv's output is all wrong. ...
-1
votes
1answer
54 views
find the relevant files with their checksum
We want to find all the .jar files with their chksum.
find . -name "*.jar"
./lib/ant-1.8.0.jar
./lib/ant-launcher-1.8.0.jar
./lib/backport-util-concurrent-3.1.jar
./lib/classworlds-1.1-alpha-2.jar
./...
1
vote
1answer
50 views
awk inside another awk's system
I am given a file containing the md5 values for files within the same folder. The information is in the file md5checksums.txt in the following format:
b0da7ead9d82a3494d7e0a7099871ef4 ./...
0
votes
2answers
300 views
Print SHA sums without “-” at the end?
Is it possible to have SHA sums print without the - appended to the end?
$ echo test | sha1sum
4e1243bd22c66e76c2ba9eddc1f91394e57f9f83 - <--- this "-" dash/hyphen
I know we can use awk and ...
-1
votes
1answer
26 views
Command line generates different hashsum than online hash generator… [duplicate]
Input text: test
Online MD5 hashsum generator: 098f6bcd4621d373cade4e832627b4f6
echo "test" | md5sum: d8e8fca2dc0f896fd7cb4cb0031ba249
Also the same happens to sha512sum and sha1sum.
Why does Linux ...
7
votes
1answer
616 views
How to check a hash sum file on FreeBSD?
Situation
I'm on FreeBSD 11.2 without GUI. I'm brand new to BSD systems.
Suppose we have a SHA512SUM file generated on FreeBSD with:
sha512 encrypt-file-aes256 decrypt-file-aes256 > SHA512SUM
...
1
vote
1answer
255 views
Using korn shell to compare local and remote MD5 over sftp
I am in need of creating and checking checksums between a local file, and the remote file I just pushed. If the MD5 checks, continue, else break. This needs to be in KORN shell scripting because we ...
0
votes
2answers
41 views
Restoring files names using md5 file
I recovered some files from my HDD, but there names were changed. Also, I found md5 files of the recovered files.
How can I use the md5 file to restore files names?
-4
votes
2answers
51 views
Remove all before last “:” in Terminal [closed]
I have millions of lines with these 2 formats all in one merged file.
hash:salt:password
hash:password
hash:hash
What I want is just keep the password, then remove duplicates and after remove ...
2
votes
2answers
514 views
Compare tarballs with sha1sum
I create a .tgz/tarball with $(npm pack).
I then run:
sha1sum oresoftware-npp-0.0.1001.tgz
and I get:
77c58da68593dcdcd14bb16a37f5f63ef42bab63 oresoftware-npp-0.0.1001.tgz
I want to compare ...
2
votes
4answers
526 views
Reverse engineering IP camera firmware to find admin password
I'm trying to reverse engineering an IP camera firmware and found the complete ROM OS but I would like to find out the system password so I have looked at /etc/passwd.
The file is not there, it is ...
0
votes
1answer
235 views
md5sum warning about formatted lines
I am trying to validate a file using the following command:
$ md5sum myfile_v2.1.ova -c myfile_v2.1.md5
md5sum: myfile_v2.1.ova: no properly formatted MD5 checksum lines found
myfile_v2.1.ova: OK
...
0
votes
2answers
402 views
get base64 value from openssl md5 command in script
I am trying to get the base64 md5 value of the latest file in an oracle backup directory:
for file in "$(find /oracle/PD1/sapbackup/b*/ -newermt $date -type f)"; do openssl md5 -binary $file | ...
0
votes
1answer
72 views
md5 sum (fdupes) vs sha256sum - why different results - ubuntu server
I have a directory structure that I know contains a LOT of duplicate files. (the dir tree has 67K files with around 8K duplicates). Naturally, the duplicates are all same size in bytes and the same ...
0
votes
2answers
350 views
Postfix configuration issue with fips on centos 7; mailgun relay
I am trying to setup postfix to relay all mail generated on the local machine via SMTP to a mailgun relay. I have used the mailgun relay before with success on an ubuntu server, but I am migrating to ...
1
vote
1answer
665 views
How to install md5sum in FreeBSD?
I am using FreeBSD 11.1
I am unable to find right way to install md5sum package in FreeBSD installation. I need md5sum for Conda installation.
Please suggest if you know anyways.
5
votes
1answer
647 views
Tar produces different files each time
I often have large directories that I want to transfer to a local computer from a server. Instead of using recursive scp or rsync on the directory itself, I'll often tar and gzip it first and then ...
1
vote
2answers
1k views
md5sum failed to open a file, directory issue
I'm having a problem checking certain .md5 files, they are all files that are in directories which have been renamed since the files were downloaded.
[User1 Directory X]$ md5sum -c file1.txt.md5
...
9
votes
1answer
4k views
How to find the hashing algorithm used to hash passwords?
I have the working password and can see the hash (/etc/passwd). How do I find the hashing algorithm used to hash the password, without manually trying different algorithms until I find a match?
6
votes
3answers
5k views
No sha256sum in MacOS
I tried to use sha256sum in High Sierra; I attempted to install it with MacPorts, as:
sudo port install sha256sum
It did not work.
What to do?
0
votes
1answer
161 views
sha512sum from terminal is wrong [duplicate]
Runing
echo "zyc.txt" | openssl dgst -sha512
(stdin)= 11aa472bf4c97ffb1fae06a3f7175127da084c5dfb840038ee308b37136330e5b6a56cc053c62881f10aec88948d8addb1d4844496cdb08e4067b4fd4601330e
or
...
22
votes
2answers
2k views
md5sum prepends '\' to the checksum
Why md5sum is prepending "\" in front of the checksum when finding the checksum of a file with "\" in the name?
$ md5sum /tmp/test\\test
\d41d8cd98f00b204e9800998ecf8427e /tmp/test\\test
The same ...
3
votes
1answer
781 views
How do I prevent gpg from including SHA1?
apt-get is complaining that signatures are invalid and that the InRelease file is not signed (see Using Centos to sign .deb packages for background). On the server, I have verified using gpg that ...
2
votes
1answer
2k views
Generate HMAC in Bash without revealing the secret
I'd like to compute a HMAC-SHA512 digest in my bash script. So far I've found only this repeated many times over many different sites.
echo -n message | openssl dgst -sha256 -hmac secret -binary >...
-2
votes
1answer
224 views
MD5 hash from for loop [closed]
I have the following string: "VGxkTk1GcHFTWGRhUjBacFkycENhMWx0VFRWT1IxazBUMVJXYUZwSFNUQmlWR1JxVGtSVmVVOVZjR3RhYWtFOQ%3D%3D"
and a for loop:
for(var i=0,k=3,l=643; (i<=20 && l>200) || k&...
4
votes
2answers
1k views
Compute md5sum for each line in a file
Given a file like:
a
b
c
How do I get an output like:
a 0cc175b9c0f1b6a831c399e269772661
b 92eb5ffee6ae2fec3ad71c777531578f
c 4a8a08f09d37b73795649038408b5f33
in an efficient way?...
-4
votes
1answer
114 views
A lot of duplicates…no fdupes,i want to make a script
No fdup please..I want to make a script.
I have a lot of file duplicates,there are more than 200
I made ( is under construction ) a bash script which make
md5sum on every file,then with uniq i put ...
8
votes
1answer
418 views
Why does `md5sum` not give the same hash as the Internet does?
I want to find the md5 hash of the string "a", but running echo "a" | md5sum gives me another hash than what I get if I search the internet (for example using DuckDuckGo or the first search result I ...
3
votes
2answers
4k views
How to compare different SSH fingerprint (public key hash) formats?
When I log in to an SSH server/host I get asked whether the hash of its public key is correct, like this:
# ssh 1.2.3.4
The authenticity of host '[1.2.3.4]:22 ([[1.2.3.4]:22)' can't be established.
...
2
votes
5answers
4k views
Generate MD5sum for all files in a directory, and then write (filename).md5 for each file containing that file's MD5SUM
I have a directory full of files. Each file will be copied to a specific type of destination host.
I want to calculate an MD5 sum for each file in the directory, and store that md5 sum in a file that ...
1
vote
1answer
531 views
Echo hash only from shasum
Is there a way to get shasum to only print the hash?
I know this can be achieved by piping the output to another program, e.g.
shasum something | cut -d' ' -f1
Is there a way to achieve this only ...
4
votes
1answer
194 views
How Linux can compare old and new password?
I know that on Linux (at least debian) every password are hashed and stored in /etc/shadow.
However thanks to the libpam-cracklib you can add some rules on passwords. For instance in /etc/pam.d/...
0
votes
2answers
64 views
How to verify checksums if files to check are mounted on different location?
I use OS X and have several checksum files that are generated from different external harddisks.
If the checksum files are in the same location as the files to check then I can simply run eg.:
...
5
votes
1answer
3k views
OSX: Generate MD5 checksum recursively in a textfile containing files with corresponding checksum
In a directory withmultiple subdirectories but only one folder deep containing tiff-files I'd like to generate a md5 checksum that writes the filename with the corresponding checksum into a textfile.
...
0
votes
2answers
510 views
awk - compare 2 files and use md5 function
I need to hash each line of second file (md5) and compare it with the first file line by line like that :
awk -F, 'FNR==NR {a[$1]; next}; !(md5($1) in a)' file1 file2 > file3
How can I do this ...
2
votes
0answers
517 views
Why does md5sum give inconsistent results on device files?
Backing up some USB flash-drives on Lubuntu 16.04.3 LTS.
Plug USB drive into laptop. Automounter does its stuff. I remount all partitions as read-only
sudo mount -o remount,ro /dev/sdxn
Copy USB ...
1
vote
1answer
2k views
How to check md5sum between two directories?
I have two directories. I want to check whether all files in one directory are same as that of other directory or not by using md5sum. If the md5sum results in a difference, I want to apply diff.
So ...
1
vote
2answers
643 views
Find files based on MD5 and delete
I want to delete same file with different names scattered in folders.
This command works fine for searching and listing the files.
Then I manually delete the files.
Is it possible to add delete ...
0
votes
1answer
29 views
In directory how can find files and apply md5sum of all files at same time?
How can find files then apply md5sum of all files?
2
votes
1answer
312 views
Different hash code when piping “sha1sum” to “tar” output
In AIX system (v 7.1) sha1sum is calculating different hash codes when its piped directly to the output of tar compared to when it reads a file.
What are the reasons for this ? Are there ways to ...
