Two Bitcoins at the Price of One? Double-Spending Attacks on Fast Payments in Bitcoin-Cryptology ePrint Archive

Two Bitcoins at the Price of One? Double-Spending Attacks on Fast Payments in Bitcoin-Cryptology ePrint Archive

Bitcoin is a decentralized payment system that is based on Proof-of-Work. Bitcoin is currently gaining popularity as a digital currency; several businesses are starting to accept ...

Virtual money laundering: the case of Bitcoin and the Linden dollar – Information & Communications Technology Law

Virtual money laundering: the case of Bitcoin and the Linden dollar – Information & Communications Technology Law

This paper presents an analysis of the money laundering risks of two virtual currencies, the Linden dollar, the in-world currency of the interactive online environment Second ...

The Dark Side of Cyber Finance – Survival: Global Politics and Strategy

The Dark Side of Cyber Finance – Survival: Global Politics and Strategy

Digital technology has created a new playing field for illicit financial transactions. Governments and industry will have to be as fast-moving and adaptable as the criminals and ...

An Analysis of Anonymity in the Bitcoin System – Security and Privacy in Social Networks

An Analysis of Anonymity in the Bitcoin System – Security and Privacy in Social Networks

Anonymity in Bitcoin, a peer-to-peer electronic currency system, is a complicated issue. Within the system, users are identified only by public-keys. An attacker wishing to ...

Bitter to Better — How to Make Bitcoin a Better Currency – Financial Cryptography and Data Security

Bitter to Better — How to Make Bitcoin a Better Currency – Financial Cryptography and Data Security

Bitcoin is a distributed digital currency which has attracted a substantial number of users. We perform an in-depth investigation to understand what made Bitcoin so successful, ...

CommitCoin: Carbon Dating Commitments with Bitcoin – Financial Cryptography and Data Security

CommitCoin: Carbon Dating Commitments with Bitcoin – Financial Cryptography and Data Security

In the standard definition of a commitment scheme, the sender commits to a message and immediately sends the commitment to the recipient interested in it. However the sender may ...

Can We Afford Integrity by Proof-of-Work? Scenarios Inspired by the Bitcoin Currency – Workshop on the Economics of Information Security WEIS 2012, Berlin, Germany

Can We Afford Integrity by Proof-of-Work? Scenarios Inspired by the Bitcoin Currency – Workshop on the Economics of Information Security WEIS 2012, Berlin, Germany

Proof-of-Work (PoW) is a principle to artificially impose transaction costs in the absence of a payment system. The idea is to “charge” the requester of a service with the effort ...

Nerdy Money: Bitcoin, the Private Digital Currency, and the Case Against Its Regulation – Temple Law Review / Temple University Legal Studies Research Paper

Nerdy Money: Bitcoin, the Private Digital Currency, and the Case Against Its Regulation – Temple Law Review / Temple University Legal Studies Research Paper

In 1601, Elizabeth I and her government devalued the Irish coin from nine ounces fine to three ounces fine of silver in order to finance the high cost of the Nine Years War in ...

A Structural Analysis of Bitcoin – University of Rostock

A Structural Analysis of Bitcoin – University of Rostock

There is no formal framework for describing the core structural concepts of Bitcoin or for attempting a correctness proof of the algorithm. This contribution presents several ...

Implementation, evaluation and detection of a doublespend-attack on Bitcoin – ETH Zürich, Department of Computer Science (2012)

Implementation, evaluation and detection of a doublespend-attack on Bitcoin – ETH Zürich, Department of Computer Science (2012)

Bitcoin is a peer-to-peer payment scheme with a monetary volume of over 40 million USD and estimated 60’000 users worldwide, including several businesses like Drupal, Bitbrew, ...