Crack MD5

[visioneye]

Hello everyone,
I have given an assignment about the cracking of the MD5. But I am not having any idea about the MD5. When I tried to search on the Web I was not getting an appropriate answers. I have just told that it is related with the hashing technique and an authentication. Hope that you guys should be knowing something about this.!!! Please give some information about it.

[Samarth]

The MD5 is actually a hashing technique used to verify the authenticity of a sentence or a file. Indeed, it suffices to apply the algorithm to a number of characters and would emerge as a string of the form "f3789b3c1be47758203f9e8a4d8c6a2a. If a character is then changed, the contents of the chain has a different shape and will therefore say that the text has been altered.

[hariharan_00]

Like any hashing technique, the technique is obviously not absolute and two files may have the same MD5 key being different but this is unlikely. So on a similar principle that is basic to this site to provide a key to regenerate the same MD5 key and thus to bypass certain checks. It is therefore unnecessary to recall to it is strongly recommended to use the MD5 encryption of any password (for a particular website).

[pushpendra]

The MD5 HASH function is irreversible, which means that no algorithm or function to retrieve the original string from its HASH. The only way to decrypt a HASH is to encrypt a set of strings. Thus, each channel will be compared to encrypted HASH looking until you find the correspondence. There are mainly three methods are compared by :

• Brut Force, which is to generate all possible combination of a string for a given length. This method is very long.
• Dictionary, which is to use words in a dictionary. It is much more relevant, but it takes a lot of space and time.
• Rainbow table, which is looking for footprint's. A good range of time and space, but it is still very long.

[Damien25]

The idea of the online tool is offered to allow you to decrypt an MD5 HASH instantly (less than 3 seconds). For this, we generated 500 million of HASH stored in the database AuthSecu.com. So you can have a method that bypasses the problem of memory and time. The advantage of this tool is that query in a database consisting mainly of English dictionary where each word undergoes change raw strength. Increasing the maximum relevance and chances of finding your HASH.

[kattman]

A new tool available if you have multiple PCs, a cracker can use the power of multiple machines in order to crack the MD5 or SHA1 password MySQL is open source and Linux as AC runs Windows. The following are the required options :

• Host: Server hostname or IP address
• Port: Server TCP port
• Password: Server authentication password (default: NetCracker)

[Kirmiac]

I would like to discuss about an application hash. Application hash is stored in the base to complete the word "relevant". So when you capture a hash, yes, the answer is not required because the site does not have the infinite set of combination. You've seen understand your analysis. You will find below details of the contents of the database :

• Gross 4 - Generates a raw force of 4 characters including the 26 lowercase, 26 uppercase letters, 10 numerals and special characters 10.
• Raw 7 Figures - Generates a raw force of 7 characters including 10 figures.
• Var 1 before - Adds a character before each word in the dictionary. This character can be composed of 10 digits and 10 special characters.
• Var + 1 before 1 after - Adds a character before and after each word in a dictionary. These characters may be composed of 10 digits and 10 special characters.