Hash Cracking Challenge
#1
Hash Cracking Challenge

What is Hashing?
Hashing is the transformation of a string of characters into a usually shorter fixed-length value or key that represents the original string. Hashing is used to index and retrieve items in a database because it is faster to find the item using the shorter hashed key than to find it using the original value. It is also used in many encryption algorithms.

What's The Difference Between Ecnryption and Hashing?
Encryption is a two-way function; what is encrypted can be decrypted with the proper key. Hashing, however, is a one-way function that scrambles plain text to produce a unique message digest. With a properly designed algorithm, there is no way to reverse the hashing process to reveal the original password. An attacker who steals a file of hashed passwords must then guess the password.

What is Hashing Used For?
  • Keeping Passwords Secure
  • Faster Password Recognition
  • Identify Secret Info
  • Caching Large Data Sets
  • And Much, Much More!

Methods of Hash Cracking?
There are 2 main methods of cracking hashes, the 2 are:
  1. Bruteforce
  2. Dictionary
Now if you know anything about cracking accounts, you probably know about these methods. But I'll tell you about them anyways.

What is Bruteforcing?
Bruteforcing is basically trying every possible combination until you get the correct password/response/etc. These attacks can virtually crack anything but can take a while. Dictionary attacks take less time, but can't crack everything.

What are Dictionary Attacks?
A dictionary uses a specified "dictionary" full of passwords and tries them on a target until they get the right one. This method is really self-explanatory, but the big point is that even though it's faster than a bruteforce, that doesn't mean it'll crack every hash you throw at it.

THE CHALLENGE!
PM THE ANSWERS TO ME, DON'T POST THEM!
Crack These 5 Hashes:
Code:
a8ab0ca826b549da99a6515cf6f71fff
e0d00b9f337d357c6faa2f8ceae4a60d
0800fc577294c34e0b28ad2839435945
1bc29b36f623ba82aaf6724fd3b16718
4b3182360786948b98ba7358b5989a0a

SOURCES:
http://searchsqlserver.techtarget.com/de...on/hashing
http://gcn.com/articles/2013/12/02/hashi...ption.aspx
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#2
Do you have the answers to these hashes already or do you actually need help cracking them? I'm going to give them a go with good old hashcat.

By the way great introduction to hashing encryption / decryption. Straightforward info.
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#3
(06-26-2015, 08:17 AM)#Limitless Wrote: Do you have the answers to these hashes already or do you actually need help cracking them? I'm going to give them a go with good old hashcat.

By the way great introduction to hashing encryption / decryption. Straightforward info.

No, I have the answers.
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#4
Got 5/5.

Pmed you the answers.
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#5
Hey, pretty funny challenge, i pmed you the answers.
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#6
As the challenge is already "old" here are some useful links

https://crackstation.net/

https://hashkiller.co.uk/md5-decrypter.aspx
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