Decentralized Stock and Cryptocurrency Exchange

NeuCoin: the First Secure, Cost-efficient and Decentralized Cryptocurrency

NeuCoin is a decentralized peer-to-peer cryptocurrency derived from Sunny King’s Peercoin, which itself was derived from Satoshi Nakamoto’s Bitcoin. As with Peercoin, proof-of-stake replaces proof-of-work as NeuCoin’s security model, effectively replacing the operating costs of Bitcoin miners (electricity, computers) with the capital costs of holding the currency. Proof-of-stake also avoids pro...

Comparative study on Warsaw Stock Exchange and Vienna Stock Exchange

A very important research topic is describing the way in which different asset price movements are correlated. Modern portfolio theory methods are based on observed correlations between returns at daily or larger time scales. One expects that coarse scale correlations originate from intraday movements that are strongly correlated. This implies the important question of how to obtain better esti...

Tesseract: Real-Time Cryptocurrency Exchange using Trusted Hardware

We propose Tesseract, a secure real-time cryptocurrency exchange service. Centralized exchange designs are vulnerable to theft of funds, while decentralized exchanges cannot offer real-time cross-chain trades. All the existing exchanges are also vulnerable frontrunning attacks. Tesseract overcomes these flaws by using a trusted execution environment, specifically Intel SGX. The task of committi...

Online Appendix Decentralized Exchange

Proof of Lemmas A.2 and A.1. {Λi}i is an equilibrium if and only if {Λi}i = F ({Λi}i). By direct calculation, defining Xi = (Λi + αiVN(i)), we get {Λi}i = F ({Λi}i) if, and only if, {Xi}i = G({Xi}i). That F and G are monotone increasing follows because matrix inversion Y → Y −1 is monotone decreasing (e.g., Horn and Johnson (2013)), and projection onto N(i) Y → YN(i) is monotone increasing in t...

Bubbles In Tehran Stock Exchange