Can we implement custom algorithms to encode and decode wifi password hashes between Windows 10 and our Router?

Question

Windows 10 has its own way of encrypting hashes, but these can be brute-forced by hashcat. One of our students created 2 of his own password encryption algorithms in python (One for encode, one for decode). Is there a way we can implement his algorithms on our Windows 10 PC and Router such that the algorithm encodes the wifi password, creates a hash, and then sends it to the pc, which reads the hash and then uses the decode algorithm to get the correct password.

Edit: I read the possible duplicate, but what I'm trying to do here is implement this method of encryption along with standard hash encryption. This algorithm is for string encryption, which would encrypt the password before it becomes a hash. I agree that standard tried and true hash encryption is the safest hash encryption. How do I encrypt the string before it becomes a hash?

Answer 1

Don't create your own custom algorithms. This is a trap that novices fall for again and again and again.

If you do, you will fail, because you are not an expert. Good algorithms are designed by people who spent decades on this very material, and the results again are checked by hundreds of cryptoanalysts, trying to find any imaginable flaw.

Your student, without trying to be personal, does not have this expertise. They are likely not even close. As a result, using your own "custom algorithm" will lead you to getting your connection cracked and highjacked, if anyone would seriously try.

How can we make our Wi-Fi secure?

Use a long passphrase! If brute force is your only worry, then use a long password that make brute force infeasible.

Use a password like .;{mr%chKzc<Z44aZ&+NV&uW!PuA5!CkJLA8*=c546/7'>,;{3@2w4x]9N}f?Da and you will be 100% safe.