In the blockchain world, losing private keys is akin to torching your treasury. Without keys, users are locked out of their funds and control is lost. Myriad threats exist to… Continue reading Battling Key Custody Calamities and Catastrophes
Category: Security
Securing Keys Across the Kingdoms of Cold and Hot Storage
For blockchain participants, protecting the private keys that authorize access to funds and contracts is paramount. Various storage models exist on a spectrum from cold storage that keeps keys offline,… Continue reading Securing Keys Across the Kingdoms of Cold and Hot Storage
How to Forge Strong Blockchain Keys
Cryptographic keys form the basis of security for blockchain networks. Private keys in particular prove ownership of assets and authorize transactions. The randomness and secrecy of private keys is paramount.… Continue reading How to Forge Strong Blockchain Keys
A Cryptographer’s Guide: Demystifying Keys and Cryptography
Cryptography plays a crucial role in blockchain technology, yet the mathematical principles involved can seem esoteric. By decoding key concepts in public key cryptography and cryptographic hash functions, professionals can… Continue reading A Cryptographer’s Guide: Demystifying Keys and Cryptography
Assessing Blockchain Solutions with a Security Eye
Blockchain technology has seen tremendous growth and adoption across industries in recent years. However, before embarking on a blockchain journey, it is crucial for organizations to thoroughly evaluate potential use… Continue reading Assessing Blockchain Solutions with a Security Eye
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
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
zk-SNARKs and the Evolution of Blockchain Privacy
While blockchain’s transparency helps prevent fraud, sharing all transaction details publicly risks privacy violations. Emerging cryptographic innovations like zero-knowledge proofs offer new ways to maximize both privacy and security on… Continue reading zk-SNARKs and the Evolution of Blockchain Privacy
Securing Blockchain Smart Contracts and DApps
Smart contracts and decentralized applications (DApps) built on blockchain introduce new attack surfaces and vulnerabilities compared to simple value transactions. Without proper security engineering, exploitable code risks theft and loss… Continue reading Securing Blockchain Smart Contracts and DApps
Case Study – The Verge 51% Attack and Blockchain Consensus Vulnerabilities
In April 2018, the Verge blockchain fell victim to a damaging 51% attack. Within hours, threat actors took over Verge’s proof-of-work consensus mechanism and successfully double spent coins, stealing an… Continue reading Case Study – The Verge 51% Attack and Blockchain Consensus Vulnerabilities