In my first course, open SSL, cryptography Beginner's Guide, we had a series of videos that were dedicated to hashes. hashes are one way function one way mathematical function that takes any input and turns it out as a fixed length output. In the case of Mt five, it is 128 bit, but there are stronger hash functions such as Sha 256 and Sha 512. So, let's play around a little bit with hashes. hashes are used everywhere. They are used in the block chain using bitcoins, but they're also used to store the passwords that you're entering when ever you reach out any website that requires passwords.

So one thing if we want to see our password, hash, we can use the open SSL path WT. And let's choose the word encrypt as the password. And that is the hash of the word encrypt. Now let's try to make a hash. stronger. Let's use another password open SSL wg and let's use the password Word, great 123 if we use it, we'll get the hash of it.

But if we want to make use of a stronger hash as Sha 256, we can use the hyphen five. And that will output a much stronger hash. A much more Secure Hash for our passwords.