Is it possible to decrypt MD5 in PHP?
In this article we will analyze if it is possible to decrypt MD5 in PHP, and we will also understand how this hash is used to save passwords works
What’s up programmer, ok? Let’s learn more about PHP and the MD5 hash!
The string generated by encrypting another string using the md5 method in PHP, cannot be decrypted
Because it is a unidirectional function, that is, when the text is encrypted, there is no turning back.
So, what is stored in the database, when we save a client’s password, for example, is not the password itself, but the password hash
When the user tries to login, the password will be re-encrypted and compared to the saved hash.
If both are the same, the user will be authenticated, if not, he will receive an error
The only possibility to break md5 is through brute force
And that would be having a huge database with several texts and hitting one by one with the encrypted data that we want to discover
However, most applications nowadays have treatment for this type of request, as there will be numerous login attempts, for example, to discover a password.
Once the hacker is identified, his IP is blocked from accessing the site
It is important to mention that a large part of password hacks is part of social engineering
Which is a way of analyzing the person’s behavior and trying to discover their information
For example: secret question about her first pet, social engineering could discover this information
MD5 is 128 bits, no matter how big or small the original content is, a string of that size will always be generated
And that means there are 2128 possibilities
In this article if it is possible to decrypt MD5
And we learned that there is no way to decrypt it, because when the algorithm is applied, there is no going back.
So the means that are used to crack people’s passwords are usually: brute force or social engineering