Blockchain’s decentralized nature offers tantalizing benefits for business, from supply chain transparency to automating workflows. But before jumping on the blockchain bandwagon, it’s critical to evaluate use cases with security… Continue reading Assessing Blockchain Solutions with a Security-First Mindset
Author: Bryant Nielson
An Auditor’s Guidebook: The Magic of Smart Contract Auditing
Smart contracts are powerful spells, but even the wisest wizard cannot catch every bug in their own code. Auditing provides a crucial second set of eyes, unveiling flaws that may… Continue reading An Auditor’s Guidebook: The Magic of Smart Contract Auditing
The Smart Contract Spellbooks: Mastering Secure Code for Blockchain
Smart contracts are the wizards of blockchain, weaving complex financial magic atop decentralized ledgers. But with great power comes great responsibility. A single vulnerability can bring down entire networks. To… Continue reading The Smart Contract Spellbooks: Mastering Secure Code for Blockchain
Navigating the Treacherous Seas of DeFi: Avoiding Vulnerabilities in Decentralized Finance
The decentralized finance (DeFi) movement promises to revolutionize finance by removing intermediaries and connecting directly through code. However, beneath the surface lie treacherous waters, rife with vulnerabilities that threaten even… Continue reading Navigating the Treacherous Seas of DeFi: Avoiding Vulnerabilities in Decentralized Finance
The Quest for the Optimal Consensus Mechanism
Since Bitcoin launched in 2009, blockchain platforms have relied on consensus mechanisms to securely add new transactions. Yet no consensus method perfectly optimizes for the desired attributes of decentralization, security,… Continue reading The Quest for the Optimal Consensus Mechanism
Beyond Proof of Work and Proof of Stake: Emerging Consensus Models
Proof of Work (PoW) and Proof of Stake (PoS) are the two dominant blockchain consensus models today. However, they each have drawbacks that have motivated researchers to develop innovative new… Continue reading Beyond Proof of Work and Proof of Stake: Emerging Consensus Models
The Evolution of Blockchain Consensus: From Proof of Work to Proof of Stake
When Satoshi Nakamoto created Bitcoin in 2008, he introduced the concept of a decentralized digital currency powered by a novel consensus mechanism called Proof of Work (PoW). This allowed participants… Continue reading The Evolution of Blockchain Consensus: From Proof of Work to Proof of Stake
Hardening Blockchain Nodes Against Attack
The decentralized node networks powering blockchain face threats from hackers exploiting vulnerabilities to disrupt consensus and availability. Nodes must be hardened to withstand attacks like DDoS, DoS, de-peering, Sybil attacks,… Continue reading Hardening Blockchain Nodes Against Attack
Blockchain and Baseball: The Scoreboard – Tracking the Blocks and Hits
In baseball, the scoreboard acts as a ledger to track key events like runs, hits, and errors to provide a snapshot of the game’s progress. Likewise, a blockchain records transactions… Continue reading Blockchain and Baseball: The Scoreboard – Tracking the Blocks and Hits
How to Secure Your Blockchain Wallet and Transactions
Blockchain wallets that store cryptocurrencies and digital assets are prime targets for hackers. While the blockchain itself is decentralized and secure, users must take care to properly secure access to… Continue reading How to Secure Your Blockchain Wallet and Transactions