Hey, I'm Jeffrey Owoloko.

A software engineer focused on full-stack Web3 development, applied cryptography, and secure system design. New essays most months.

Posts

Aug 24, 2026

Perfect Secrecy: Why the Ultimate Cipher is Useless

Shannon formalised what it means for a secret to be perfectly kept. The one-time pad achieves it, and its cost explains why modern cryptography settled for less.

Dec 08, 2024

The Role of Account Abstraction in Ethereum's Evolution

Why Ethereum accounts work the way they do, what smart accounts change, and how paying gas in any token becomes possible.

Feb 22, 2024

Implementing a Custom ERC-20 Token Smart Contract with Solidity

The fungible token standard implemented by hand: the six mandatory functions and the promises each one makes.

Feb 17, 2024

ERC721: Digital Collectibles on Ethereum

What makes a token non-fungible, how ownership is tracked, and shipping your first NFT with OpenZeppelin and IPFS.