Privacy in Cryptocurrencies: An Overview

Transactions in Bitcoin are recorded in its blockchain. This makes it possible to see whether coins sent through the network are still valid unspent coins. At the same time, however, the transparency of the data stored in the blockchain can be used to infer private information of users. There are already many cryptocurrencies and “money […]

Review of AppeCoin: An Alternative Anonymous Cryptocurrency

AppeCoin, Sergio D. Lerner‘s proposal for an e-cash scheme, is designed for a peer-to-peer network which does not rely on a Trusted Third Party. Like the cryptocurrencies Monero or Zcash, AppeCoin is a protocol which aims to guarantee to its users full privacy. Lerner’s e-cash scheme leverages coin shuffling. Unlike ZeroCoin, where the monetary units […]

zk-SNARKs Technically Explained: Basic Principles

The full technical article is available here. Introduction Payment confidentiality is a property for cryptocurrencies which allows the user to hide the sender and receiver, as well as the amount of a transaction in the blockchain. Monero Research Lab invented Ring Confidential Transactions, while Zcash uses a different approach based on recent scientific progress in the field […]

Comparison of Cryptocurrency Developments

Working for our customers in our blockchain development company we built this spreadsheet which is a work in progress, comments are welcome here, which describes the features of multiple blockchain and sidechain technologies. Views about blockchain technologies range from hype to skepticism. A blockchain is a distributed database and consensus network that can be used to […]