---
title: "Oluwatosin Serah Ajao (@Sayrarh) | Hashnode"
description: "Blockchain developer. Read the latest articles by Oluwatosin Serah Ajao on Hashnode."
url: "https://hashnode.com/@Sayrarh"
---

@Sayrarh

# Oluwatosin Serah Ajao

@Sayrarh · Nigeria · Joined July 2022

Blockchain developer

### [Misconceptions of Cryptography](https://sayrarh.hashnode.dev/misconceptions-of-cryptography?utm_source=hashnode&utm_medium=feed)

Cryptography has become the backbone of modern internet security and the concepts behind cryptography and encryption are frequently misunderstood. In this article, we will understand the concepts and applications of cryptography & how it helps to kee...

5 min read · [sayrarh.hashnode.dev](https://sayrarh.hashnode.dev/misconceptions-of-cryptography?utm_source=hashnode&utm_medium=feed)

[Jul 28, 2022](https://hashnode.com/posts/misconceptions-of-cryptography/62e2e601d7b405bea1558d09)

### [Blockchain: Why? Explained Well To A Layman](https://sayrarh.hashnode.dev/blockchain-why-explained-well-to-a-layman?utm_source=hashnode&utm_medium=feed)

Here is my article on what I learned in the first week of my web3 internship at web3bridge. As mentioned earlier in my bio that I will be sharing with you a weekly article on what I learned during the week. Let's dive right into it. WHAT ARE THE LIM...

6 min read · [sayrarh.hashnode.dev](https://sayrarh.hashnode.dev/blockchain-why-explained-well-to-a-layman?utm_source=hashnode&utm_medium=feed)

[1](https://hashnode.com/posts/blockchain-why-explained-well-to-a-layman/62d616853060d03288d9bc24) [Jul 19, 2022](https://hashnode.com/posts/blockchain-why-explained-well-to-a-layman/62d616853060d03288d9bc24)