WORK IN PROGRESS - Feel free to raise any issues, features or improvements on GitHub!

What does this program do?

Hash-gen aims to find the matching hex value for a given hash, therefore finding out the unencrypted/original value of the hash.

Example

Take the number, 500.

Convert 500 to hex and you will get 1f4.

Encrypt 1f4 with sha256 and you will get the following hash:

10be707c02c8eafff11f843178cc5c86381b2d31d3569b268ad4d0a4dc890c7d

Now, say you are trying to find the value behind this hash. How would Hash-gen do this? Just run the following:

$ hash-gen -t 10be707c02c8eafff11f843178cc5c86381b2d31d3569b268ad4d0a4dc890c7d -s 5 -d 1 -h sha256 -V --log

After running this command, Hash-gen would set the target hash target to 10be707c02c8eafff11f843178cc5c86381b2d31d3569b268ad4d0a4dc890c7d, starting at 5 it would increment by 1, each time converting the number to hex, hashing the hex and checking to see if the hash is equal to the target hash. For example:

Int:  5
Hex:  5
Hash: ef2d127de37b942baad06145e54b0c619a1f22327b2ebbcfbec78f5564afe39d

...

Int:  170
Hex:  aa
Hash: 961b6dd3ede3cb8ecbaacbd68de040cd78eb2ed5889130cceb4c49268ea4d506

Int:  171
Hex:  ab
Hash: fb8e20fc2e4c3f248c60c39bd652f3c1347298bb977b8b4d5903b85055620603

Int:  172
Hex:  ac
Hash: f45de51cdef30991551e41e882dd7b5404799648a0a00753f44fc966e6153fc1

Int:  173
Hex:  ad
Hash: 70ba33708cbfb103f1a8e34afef333ba7dc021022b2d9aaa583aabb8058d8d67

Int:  174
Hex:  ae
Hash: f9a00f43e97e3966bb846e76b6795e11512c3bbfa787e6b70e0310c7b9346b98

Int:  175
Hex:  af
Hash: 503126878d17fcd6bde7df320ff6eb7c278a1c42f30014a03b17f3dd0c023c1d

If Hash-gen does find a match it will output something similar to this:

-- A MATCH FOR YOUR HASH VALUE HAS BEEN FOUND --

Writing to /Users/ryan/Documents/hash_logs/sha256-54048.txt...
Successfully saved match.

Locate the .txt file, if the --log argument was passed, this file will contain all the previous hex/hash pairs. You may need to run a search on the file for the target hash. Example contents of .txt file:

sha256 hash log.

Matched On Int: 500
Hex Value: 1f4
Hash Type: sha256
Hash: 	10be707c02c8eafff11f843178cc5c86381b2d31d3569b268ad4d0a4dc890c7d

Congratulations! You now know that your target hash has the hex value of 1f4.

1. Install hash-gen

$ npm install --global hash-gen

Ensure you are using node version 6 or above. Double check the installation has gone smoothly by simply running:

$ hash-gen

If it has, you should see the following message:

Hash-gen has been successfully installed! Time to get hashing.

2. Start Hashing!

$ hash-gen -h sha256 -t bf9949911bad9ad71e2b8d4904ea4ffd386a6a8fa03e68e1d2ac738fd1d8be4d -s 5 -d 1 -V -l

Hash Matching

-t, --target    The hash you are trying to find a match for
-h, --hash      Type of hash e.g sha256, sha512 etc. (sha256 is default)
-s, --start     The number you would like to start at (1 is default)
-d, --delay     Delay in milliseconds between each hash (5 is default, 1 is minimum value)
-l, --log       Keep a log of all created hashes to file (Can slow hash generation when ON)
-V, --Verbose   Verbose output (Shows hex & hash)
    --ssh       Enables SSH mode (No console output at all) - Highly recommended when running Hash-gen on a VPS

Hash Creation

-c, --create    Only used when creating a hash. The value you would like to hash (e.g. password)
-h, --hash      Type of hash e.g sha256, sha512 etc. (sha256 default)
    --digest    hex, base64, utf8, latin1 (hex default)

Global

    --help      Shows help for Hash-gen

Currently Supported hashes

md4, md5, mdc2, sha, sha1, sha224, sha256, sha384, sha512, dss1, ripemd, ripemd160, rmd160, whirlpool

More hashing algorithm's coming soon! Keep updated via GitHub!