Learn Bitcoin and Blockchain

Hash function 

 The main cryptography techniques used in cryptocurrency are a hash function and a digital signature.

Let's look at each of these briefly. The hash function is a mathematical function with the following properties:

• Any input that we provide, be it a string, number, floating number, or anything, can be of any size
• It produces a fixed-size output such as a 128-bit hash outcome or even a 256-bit outcome
• It is collision-resistant
• It hides the data within it

Let's now look at an example of a hash function in the following diagram:

Let's look at the hash function being used here. In the preceding diagram, we gave Fox, one string, ...