## Top 10 Online Crypto Communities 2020

Crypto is still rapidly growing in 2020, and while the hype train has somewhat left the station, we are sure it will be back. In the meantime, it’s a good opportunity to learn more about the fundamentals and technology that support decentralized money. These communities can help tremendously. #1 BITCOINTALK https://bitcointalk.org/ Bitcointalk is the gold standard for the community of …

## Cryptography Trends And News Going Into 2020

Quantum Computing While quantum computing may not be coming quite as fast as some in the field had feared (or perhaps hoped), Google did solve an impressive problem this year. They published a paper in Nature stating that their quantum processor solved a problem that a digital computer would take 10,000 years to solve. The problem that was solved deals …

## (Very) Basic Intro To Elliptic Curve Cryptography

This is going to be a basic introduction to elliptic curve cryptography. I will assume most of my audience is here to gain an understanding of why ECC is an effective cryptographic tool and the basics of why it works. My goal is to explain it in a general sense, I will be omitting proofs and implementation details and instead …

## (Very) Basic Intro to Key Derivation Functions (Argon2, Scrypt, etc)

A key derivation function, or KDF, derives one or many secret keys from a secret value. If you’ve ever needed to store a password in a database or create a private key from a password, you may have used a KDF. Examples of popular KDFs: Argon2 Scrypt PBKDF2 Are KDFs just hash functions? No, but there is overlap. In order …

## Cryptology, Cryptography, and Cryptanalysis – Get your Vocabulary Straight!

Many new developers are jumping right into coding (usually for those fat paychecks) without learning much about the history of Computer Science. Alan Turing, regarded as the father of Computer Science, was first a cryptologist and mathematician and pioneered the field of CS in order to solve cryptological problems. In this article, I will go over common crypto-related definitions for …

## How to Create a Bitcoin Savings Wallet Using Qvault and Sentinel

Qvault and Samourai’s Sentinel are a match made in heaven for anyone wanting a secure and easy solution for Bitcoin savings. Why? A watch-only wallet is perfect for users who want a high-security savings account. It is a two-app-setup where the seed (containing spending keys) is stored securely in one app, and the public keys in another. The app with …