MD5 (Message-Digest algorithm 5) is a 128-bits unidirecional hash algorithm.
0
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1answer
19 views
clear md5 cache on Mac
I noticed that calculating the md5 sums, for large files, take much less time the second time you run the md5 command on them. Is there any way to clear the cache? I'm actually writing a parallel ...
0
votes
1answer
31 views
how to detect file corruption?
Sometimes, my files become corrupted without me noticing - this happens to my photos a lot. This doesn't bother me when I notice it because I have backups. It's growing to be a pain to manually go ...
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0answers
40 views
Why do I get a different MD5 message digest on Solaris for the same file? [closed]
Observe that the digest value keeps on changing:
bash-3.2$ cd /some/path/
bash-3.2$ ls -l
-rw-r--r-- 1 user1 user1 1083338850 Apr 5 13:28 file1.zip
bash-3.2$ digest -v -a md5 file1.zip
...
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votes
1answer
46 views
md5pass or sha1pass on mac os
I'm looking for a hash tool on MacOS (shell), hope it works like md5pass on Ubuntu.
Calculate case sensitive hash code.
Calculate salted hash code.
md5 is good, any other algorithm is ok.
I ...
0
votes
2answers
85 views
What's the purpose of brute forcing MD5 hashes? [closed]
Great article about hacking passwords on Ars Technica:
http://arstechnica.com/security/2013/03/how-i-became-a-password-cracker/
But what I don't understand is why? From a black hat's standpoint, ...
0
votes
1answer
148 views
EFI partition malware?
I have a 2011 Macbook Pro, running 10.8.2 and was worried that the laptop may have been tampered with while left unattended for a few days while abroad in Asia.
I have mounted my EFI partition using:
...
0
votes
2answers
54 views
What's the percentage of having two files with the same byte size length giving the same md5 hash? [closed]
I'm developing an app that will store a lot of files, and in case of images, it will resize them and save the different thumbnails we need, so when a user uploads an image, it will save more 8 files ...
0
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1answer
97 views
MD5 (OSX) and Output
when using MD5 i get a text file output of the full path to the file and file name and then space and the hash.
wondering if there's a way omit the path and just have filename = hash
using terminal ...
0
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0answers
59 views
Use of TCP-MD5 option
For a research application we need to use the TCP-MD5 option (RFC 2385). After some research we have finally found that only a few GNU/Linux distributions support the option out of the box. We ...
3
votes
3answers
363 views
Is there a tool that automatically downloads and compares md5sums?
What I want but can't find:
$ download -url http://download.com/me.zip -md5 http://download.com/me.md5
[================================================================>] 100%
md5check .... OK
$
...
0
votes
1answer
99 views
md5sums differ between CIFS and NFS
I'm doing some research on 'cribbage' an Ubuntu 10.04 box which connects to 'prodcsamba01' via CIFS:
cribbage $ mount | grep prep
//prodcsamba01/prepfsnr on /prep type cifs ...
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votes
5answers
3k views
Is it possible to decrypt MD5 Hashing? [closed]
I was seeing a video on how to hash passwords with MD5 Hashing. After googling on it I found out that Facebook also uses MD5 hashing scheme. Now I was curious to know if we can decrypt the password ...
0
votes
1answer
74 views
Verifying file integrity on NTFS under linux
I have an NTFS volume that I share between a linux machine and a windows machine. Recently I have had a couple of strange problems where files have become corrupted. This has affected some media ...
2
votes
1answer
365 views
Why do two identical zips on Linux have different md5 sum values?
I created these two zip files about 24 hours apart.
$ ls -l /tmp/*.zip
-rw-rw-r-- 1 scott scott 1401289 Mar 21 20:11 /tmp/inc1.zip
-rw-rw-r-- 1 scott scott 1401289 Mar 22 19:29 /tmp/inc2.zip
You ...
0
votes
1answer
273 views
md5deep not working with duplicated files in different directories
I want to use md5deep to check that some copied directories are copied correctly. But seems md5deep doesn't use the filenames stored in the genearted .md5-files when matching!
This actually means, ...
1
vote
3answers
1k views
md5sum of files in two folders
I'm trying to compare all the files in two folders via an md5sum in one command. Some like the following (bash) in Debian:
$ cd ~/FOLDER1
$ md5sum ~/FOLDER2/* | md5sum -c -
The idea is that the ...
2
votes
1answer
136 views
Sorting a checksums file by file name
I'm trying to sort the output of the md5sum program by file name, numerically (that is, file names all match log-\d+\.txt). I tried
sort -g "-t " -k 2 CHECKSUMS
but it sorts by checksum. Using
...
2
votes
2answers
265 views
Is there a way I can compute MD5 or SHA hashes on Windows and Linux without the need for a specific application? [duplicate]
Possible Duplicate:
Is there a built-in method for computing a sha1 or md5 hash in windows 7?
If I am running Windows 7 or a distribution of Linux how can I compute MD5 or SHA hashes ...
0
votes
1answer
717 views
rsync directory complete but some files md5sum is different
I'm using rsync to copy a directory from host A to host B. After the rsync is completed successfully, I check the files with the directory and find that some files' md5sum is different but the ...
0
votes
0answers
166 views
Grub password appears to be plain md5 in hex, not md5-crypt in base64
The menu.lst file has a line that looks like "password --md5 c5ae09c39ad1e0d2aa12231eea7bc5c2"
The grub-md5-crypt command creates salted, iterated md5 hashes that look more like ...
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votes
2answers
1k views
How to copy files and create hardlinks instead of copying when files are identical
Are there any tools for Windows that can
copy one dir to another
read copied content
generate MD5
if the current file is identical to a previously copied one, create a hardlink in destination dir ...
0
votes
2answers
386 views
How to convert Windows filenames (from a checksums.md5) to *nix notation so I can use it on my shell with md5sum?
I have some checksums.md5 verification files from an ntfs external drive, but using windows notation: \ instead of /, spaces between file names (not escaped), reserved shell characters (like (, &, ...
2
votes
3answers
149 views
How do I check the checksum of a download and why should I?
My memory isn't great but I think five or six years ago, when I downloaded some package, there was never a checksum line under the download icon on the webpage. And no instructions to "check the ...
1
vote
1answer
1k views
md5sum on large files
Context:
I have a large terabyte drive with various types of large media files, iso files etc.
I would like to verify its contents using md5sum on the first megabyte due to speed/performance.
You can ...
1
vote
3answers
885 views
How to add hash to MS Word documents?
I'd like to add a SHA, or some other kind of a hash to a Word (for Windows) document.
Is there a good program / macro that would help me with that? Or some kind of a tutorial somewhere on the net? ...
-2
votes
1answer
950 views
Which tools do you guys use for MD5 brute forcing in Mac OS X? [closed]
I am new to Macs, so I don't know which tool is good for MD5 brute forcing in Mac OS X. Do you have any suggestions?
0
votes
1answer
43 views
Are there two same md5sums in different files?
Are there two files which has same md5sums but different content? Is there way to find such files easy-way?
is there some article/blog post about it ?
8
votes
2answers
673 views
Is verifying a MD5 sum after copying 100GB of data safe?
I'm copying 100GB from a Windows 7 workstation to 2 external drives (if you have only one backup, then you have none). All files have a MD5 checksum. I've verified all MD5 checksums on the external ...
4
votes
3answers
395 views
Linux, is it necessary to to Md5sum when copying files to new directory on same hard drive?
I'm using an ubuntu server and the project I am working on has very strict requirements regarding making sure data is not corrupted. I can't seem to find a good answer on this, when doing a local copy ...
0
votes
1answer
260 views
how to use md5sum on certain files
Imagine I have a filelist like this:
file1.php
file2.php
login1.php
login2.php
logout1.php
logout2.php
And I want to do an md5sum on files called login* <- something like that. I need to count ...
4
votes
4answers
6k views
5
votes
3answers
1k views
How to verify a .md5sum file in snow leopard?
In snow leopard there is program that can do md4 checksums.
How can I verifiy a .md5 file?
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votes
1answer
492 views
DBAN MD5SUM Hash for Version 2.2.6 (i586)
Found this forum thread on SourceForge, but the MD5SUM Hash is for "dban.bzi", so that doesn't help at all. I checked elsewhere in the SourceForge forums, but I didn't find anything else. I also ...
1
vote
1answer
744 views
OSX 10.6.6 SSH md5 break-in check
Information
Recently one of the linux servers that I access was compromised to steal passwords and ssh keys using a modified ssh binary. This lead me to question if the attacker had compromised my ...
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votes
2answers
441 views
Ubuntu 10.10 desktop edition installation fails
I just tried to set up a VM using VirtualBox and Ubuntu 10.10 desktop edition. Installation proceeded fine, but at ~60-80% I got a message that it failed and it's most likely a defect CD or a read ...
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vote
2answers
2k views
How can I copy files to an external drive and verify their integrity in OS X?
I'm moving large amounts of data from one external drive to another larger one. The files are important and the smaller drives need to be cleared and reused (HD camera). Is there some utility for ...
1
vote
2answers
942 views
Get md5sum without file name?
I need to get the md5 sum of a file on AIX, but the md5sum program prints the sum followed by the name of the file.
How can I get the sum without the file name.
2
votes
7answers
528 views
Why do sites offer an MD5 hash of a file?
Why do sites offer an MD5 hash of a file? How does that help you verify the integrity/source of the file? Wouldn't paying attention to your URL be enough security?
1
vote
2answers
169 views
How to Find Most Common or Frequent Files In Directory?
I have a directory with lots of images(100,000+). Many of these are
duplicates/identical images but obviously all have different filenames. I need to find the images that have the most duplicates in ...
2
votes
2answers
1k views
Looking for OS X utility to verify/validate copied files/directories - checksum / SFV / MD5
Looking for the best way to easily validate the integrity of files/folder in OS X when copied from one location to another.
I've downloaded SuperSFV but it appears to be very slow. Also new to the ...
14
votes
7answers
7k views
Is there a built-in method for computing an SHA-1 or MD5 hash in Windows 7?
Is there a built-in method for computing an SHA-1 or MD5 hash in Windows 7?
2
votes
3answers
268 views
is there any tool that can give a string for a MD5 code?
i want to have a string whose MD5 code is same as the original string has,
i mean i wants a tools that takes MD5 code and gives multiple possible strings which have the same MD5 code .
is there any ...
5
votes
6answers
8k views
What tool can generate MD5 from the command-line?
Is there any tool that can automate by script to generate file MD5?
I used to use Cygwin but I am looking for another solution without having Cygwin installed.
4
votes
1answer
537 views
md5sum via right click in ubuntu
Is there an extension or script to calculate a file's md5 hash using the right click of the mouse in Ubuntu ?
2
votes
2answers
2k views
What is the fastest MD5 sum calculator?
I tested the speed of md5sum on a few Ubuntu 8.04 servers
Pentium III 700 MHz: 52 MB/s
Atom 1.6 GHz, 32-bit: 119 MB/s
Core 2 (Yorkfield) 2.5GHz, 32-bit: 194 MB/s
Core 2 (Yorkfield) 2.5GHz, 64-bit: ...
1
vote
1answer
191 views
Where can I find hashes for Mozilla applications?
What is a reliable source for cryptographic hash values for Mozilla applications?
Update 1: the value from http://releases.mozilla.org/pub/mozilla.org/thunderbird/releases/latest/MD5SUMS, ...
2
votes
6answers
482 views
md5 hash is different on a file split, cat back again
Here's an excerpt of the commands I ran as I split and then cat a file:
sh-3.2# split -b 600m bt4-final.iso
sh-3.2# ls -hal
total 6132096
drwxr-xr-x 6 root staff 204B Jan 12 19:59 .
...
45
votes
10answers
19k views
Looking for MD5 utility that integrates to Windows
Is there any small utility that integrates with the Windows shell and computes md5 of files on demand? I'm too lazy to launch the command line :D.
Edit: Just found this with a Google search on "md5 ...
4
votes
3answers
492 views
How secure is it to use a password hash of a common English word as a WPA2 key?
I have a wireless router, and I want a difficult password that is still, in a way, easy to remember.
I came up with this idea to take the MD5, SHA-1, SHA-256, or whatever hash of a common English ...
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votes
4answers
2k views
Can you use OpenSSL to generate an md5 or sha hash on a directory of files?
I'm interested in storing an indicator of file / directory integrity between two archived copies of directories. It's around 1TB of data stored recursively on hard drives. Is there a way using ...
