BIP 32 Watch-Only Wallets

https://dissolve.com/video/Key-ring-frozen-ice-royalty-free-stock-video-footage/001-D617-9-730

Bitcoin improvement proposal 32 is, in my opinion, one of the most important BIPs we have. (Thanks Peter Wuille!) BIP 32 gave us Hierarchical Deterministic Wallets. That is, the ability to create a tree of keys from a single seed. In the early days of Bitcoin, each time a user wanted to receive new coins, …

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Secure Random Numbers in Node JS

http://thehobbyts.com/fun-dice-games-ultimate-list/

Randomness is a hard problem for computers. Most functions that generate randomness are not considered cryptographically secure. What this means is that it’s possible for attackers to take a good guess at what number a non-secure randomness generator generated. In the case of guessing a randomly generated private key, for example, this can be catastrophic. …

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