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1
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1answer
30 views

/etc/shadow in old format, where is salt stored?

In /etc/shadow I have entries such as admin:YtChlvAGYzva2:16318:0:99999:7:::. I know the original password and would like to generate the same hash somehow. However, running openssl passwd -crypt ...
1
vote
2answers
44 views

Is encrypting the password legal? Not using any hash methods [on hold]

I tried to login to my college social network site but I forgot my password so I clicked the "Forgot Password" link then an email has been sent. It stated in that email my username and the super duper ...
0
votes
1answer
13 views

Mail server that supports duplicate file detection?

AFAIK, Google mail servers (gmail) can detect duplicate files. For example, if you receive a big file as attachment that exactly exists in someone else's inbox, google avoids storing the file twice, ...
2
votes
1answer
14 views

How can hashes be used to efficiently keep track of version changes in documents?

I have heard that open source software uses these. Are they computed on an entire file? Like if you changed one letter of Moby Dick the hash would be different? I am curious about these for keeping ...
0
votes
1answer
14 views

Blake2 installation in linux?

I was trying to install from source BLAKE2 hash function in Ubuntu, but I do not know how. I don`t know how to use these makefiles with .c and .h files . Any help? https://blake2.net/
0
votes
1answer
21 views

Kernel-level pass-through method to change file hashes

I'm searching for any kernel-level mechanism that is pass-through and will change file hashes by either encrypting file contents or appending data. The most obvious solution is encryption, but I can't ...
2
votes
4answers
139 views

How do I verify a GPG symmetrically encrypted file?

I created an encrypted file with symmetric encryption. gpg -c 50GBfile Now I want to delete the original. Before I delete the original, I want to verify the integrity of the encrypted file. ...
0
votes
1answer
52 views

Network Password Recovery

I am trying to recover a password for my network. It's set up like this: a network of computers, and a central server which authenticates login-passwords entered, and is also a network share. Username ...
0
votes
1answer
381 views

Adding peers from another torrent with different hash values

I found two exact torrent files (same in size) with two different hash values. Since the contents of the files were the same and the number of seeds was very less, I thought that I could connect the ...
1
vote
3answers
85 views

How can SHA512 make a long string into a short string

I´m wondering how this random and very long string €£$€@]}$€{[$£}]£[€€£$€@]}$€{[$£}]£[€]}€486745896€$@fdhhsgpbkjhYUVYUDTYhµµµ½789ty45thhrhYUFVYU7645646f8cgI JKHVruxty dw78fg f 9w64f ...
0
votes
1answer
28 views

Restore Partiton only on change

I have wrote a script that restores a partition from a previous made dd dump. Basically it calls this line: dd if=stored_image.img of=/dev/sdb1 bs=1M The restore for this takes about 5 Minutes ...
0
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0answers
36 views

Checksums for Win7 installation files?

OK many thanks to the guys on Where do I download Windows 7 (legally from Microsoft)? who provided links to d/l the WIn7 .ISO images. Now where can we find a similar listing of the md5 hashes for ...
0
votes
3answers
257 views

Identify Known Malware By Hash (MD5) Across Network

I need to design a solution that will allow me to submit a series of MD5 hashes and then be alerted if these hashes are found on any machine (Windows) on the network. I'm open to existing solutions ...
0
votes
0answers
41 views

Combine .hash files into single .hash file

I am trying to rename all the .hash files in one directory to the same name (or merge all of the .hash files into a single .hash file). I am using Kali Linux - what tool would be best to do this? Can ...
0
votes
0answers
61 views

want to make sure two or three folders are identical/same

I checked two/three folders with two software called Beyond Compare and Araxis Merge. Those two software says these folders identical. I tried another way. Compress these folders and compare hash ...
0
votes
1answer
20 views

How can a user login to a workstation if the DC is down?

Is it possible to do such thing? Because the hash of that users' password is normally stored on the DC.. And if it is, where are the users credentials stored on that workstation?
0
votes
1answer
17 views

Where on the DC are password's hashes saved?

Like title says, where are the password's hashes from all the computers on the domain saved on the DC? And where is that file on the dc's filesystem?
0
votes
2answers
134 views

2 users that have the same passwords on windows 7. will the hashes in the SAM file be the same?

Let's say I have a computer with win7 and I made 2 different accounts. Now I've set the same password for both accounts. My question is whether the hashes of the passwords in the SAM file will be ...
3
votes
1answer
67 views

Any examples of duplicate MD5 Hashes?

I was wondering, as it is theoretically possible to have duplicate MD5 hashes, are there any known examples of this, or is it all just theoretical?
0
votes
1answer
743 views

Location of SHA512 Haslist on Mavericks>

I'm trying to find the SHA512 hash of the user passwords on OS X Mavericks (10.9.1), I'm aware that you can get the user .plist from: /private/var/db/dslocal/nodes/Default/users/{username}.plist ...
3
votes
0answers
38 views

Embedding index in pdf files [closed]

Are there any (free) tools for building an index of a pdf and embedding it in the file in order to speed up searching? I know Acrobat Pro has a catalog option but I was hoping for a free tool and ...
1
vote
1answer
46 views

How does applications read my hashed passwords?

mpdas (last.fm scrobbler for mpd) forces one to write password hashed in md5. But if it's hashed, how does it login to last.fm? Isn't hash function one-way only?
1
vote
1answer
588 views

How to make sure a downloaded .iso matches a hash value?

I have download the .iso file as guided here and there is part that says to verify the downloaded .iso with CRC or SHA-1 hash value. Make sure that the CRC and SHA1 hash values of the downloaded ...
1
vote
2answers
181 views

Is there a way to search for files by hash value?

Is there a way I can have a hash value as input when searching for files and a complete list of files and their locations as output? This could be helpful when trying to pin point file duplicates. I ...
0
votes
0answers
41 views

Deleting sentences in database file

I'm writing a MD5 based antivirus, and my friend send to me a document with thousands of samples and their MD5. All is fine, but I have to delete all sentences what contain "File does not exists:" ...
0
votes
1answer
2k views

Can Robocopy ensure file integrity?

I am trying to copy a large file, around 10G size, over Internet using Robocopy, but I am a bit concerned about the file integrity. So can I just trust Robocopy to ensure file integrity or I need to ...
1
vote
1answer
141 views

Is it possible to write an app that ignores the zip archive password?

I am not sure how password protected archives work but is it the programs enforcing the protection or is it the way the format works where if it's password protected, there is no way to extract the ...
3
votes
1answer
2k views

“line length exception” in hashcat (kali linux)

I've received this line: root:$1$25A116L54$7/IbiL1ZsUyPwYBx/zuNv/ and asked to crack the password. So, I created a crack.hash file and put the following in it: $1$25A116L54$7/IbiL1ZsUyPwYBx/zuNv/ ...
0
votes
1answer
34 views

Probability of colission when hash is half the size of data?

If i had a password of 100 bits, and hashed it with a hash function that returned a 50 bit key, now i brute force it until a get a string that produces a matching hash, is there now a 50% chance that ...
1
vote
2answers
380 views

Obtain SHA256 Value for Subject Key Identifier

Using Keytool we can view the details of a Keystore with the command keytool -list -v -keystore <KeystoreName> This returns a set of values including a Subject Key Identifer ...
1
vote
2answers
6k views

Strongest Encryption and Hashing Algorithms Today [closed]

Basically, I want to know what the strongest (hardest to break) encryption algorithm today is. The same goes for the hashing algorithm. Let's say I pick a super-strong password too (bonus: how long ...
1
vote
2answers
327 views

is it possible to create custom columns (such as checksum/hash column) in windows explorer?

Is it possible to create my own custom column in Windows Explorer when listing files in "Details" mode? Right now, I have: Name Date Modified Type Size Hash I would like ...
4
votes
1answer
142 views

What files from the /boot partition, in addition to the MBR, must be hashed in order to detect an “evil maid” attack against LUKS-encrypted Linux?

Are boot.img, initrd, and vmlinuz adequate or should the entire contents be hashed? I am not familiar enough with the Linux boot process to answer this with confidence myself.
5
votes
2answers
354 views

Calculating sha256sum of a dvd

I have a burnt dvd from an iso image. I have also sha256sum of the iso image. to compare hashes, I created an iso image from the dvd and executed sha256sum image.iso, but it differs from the hash of ...
0
votes
2answers
248 views

Recover Windows password history

I am able to log into my Windows 7 machine as admin and am interested in recovering past passwords for the accounts on my laptop. Is there an easy way to do this, or would it still require cracking ...
0
votes
4answers
215 views

Split text stream by hash value of first field in line

I am looking for a fast filter that will take a text file on standard input, hash each line up to the first tab character, and put the line into a different file depending on the hash value (modulo ...
0
votes
1answer
190 views

How do you make multiple computers work on the same task? (hash cracking)

This is a question that's been plaguing me since I saw the following YouTube video: http://www.youtube.com/watch?v=TBXBB5sy5sA This man installed 20 video cards across 5 different rigs, all running ...
0
votes
1answer
305 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 ...
5
votes
2answers
664 views

How can zero byte files generate a hash value?

How can a zero byte text file generate a hash when hashed with sha1sum, sha256sum etc? What data are the programs hashing to generate a hash value? Ta
7
votes
4answers
18k views

Is there an Excel function to create a hash value?

I'm working with a number of data lists that are keyed by document name. The document names, while very descriptive, are quite cumbersome if I need to view them on (up to 256 bytes is a lot of real ...
1
vote
0answers
896 views

How to verify 7zip'd files integrity

For some files I have compressed, I have been looking for a MD5 add-on to 7zip (As I have the MD5's by way of an Explorer Column Handler, in xplorer2); or a CRC Explorer Column Handler (Because 7Zip ...
1
vote
3answers
242 views

Current alternative to the old CHECKSUM program

I'm looking for an application that does md5/sha hash check on specific files/folders periodically and store an index file per folder for future verification. I remember such application exist in DOS ...
-3
votes
1answer
1k views

With the Windows SAM and SYSTEM files, can I get the password of an account?

I heard of John the Ripper, Ophcrack and many other programs that are used in order to crack the hashes for Windows' 7 Password, but JTR seems a bit slow (Didn't get the password after 20 minutes) and ...
1
vote
1answer
34 views

Is it possible to store Hashed data in a different field than userPassword in LDAP

I've been asked to store hashed data in a LDAP server. Putting hashed passwords is easy but I'm not sure if LDAP allows to store data like email hashed or even encrypted. Creating a LDIF file with a ...
1
vote
3answers
3k views

sha1sum for a directory of directories

sha1sum ./path/to/directory/* | sha1sum the above was posted as a way to compute a sha1sum of a directory which contains files. This command fails if the directory includes more directories. Is ...
4
votes
4answers
3k views

OpenSSL hash function for generating AES key

What hash function does OpenSSL use to generate a key for AES-256? I can't find it anywhere in their documentation. $ touch file $ openssl aes-256-cbc -nosalt -P -in file enter aes-256-cbc ...
0
votes
5answers
6k 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
117 views

Hash Calculating Tools [duplicate]

Possible Duplicate: File checksum calculator for Windows What are some simple one-click tools to calculate hash of any file? For example: I'm looking for something simple like with Right ...
2
votes
1answer
599 views

Is the linux md5 password hashing considered secure?

On my RHEL6 linux is configured to use MD5 password hashing is the linux usage of MD5 for password hashing considered secure?
3
votes
1answer
814 views

How to check file against a hash on windows 7?

How to check downloaded file against its hash (SHA-256 Hash, SHA-1 Hash, MD5 Hash) on windows?