- Privacy for Bitcoin on Mobile, Part 1: Giants and Dwarves On May 18th, the Open Bitcoin Privacy Project published our first wallet ratings report. To my knowledge, this is the first publicly shared data that compares wallet privacy. We have many plans to hone and expand our analysis, but already it has revealed a wealth of insight into the current state and near future of […]
- Main Street’s Financial Privacy The following is an introduction I wrote for the Open Bitcoin Privacy Project’s Spring 2015 Wallet Privacy Rating Report, published May 17th, 2015. You can download the report here [github.com]. Any technology as revolutionary as Bitcoin is bound to come with surprises. In fact, if you’ve been following the technology for any appreciable amount of […]
- Brooklyn Graffiti Artist “Gadse” and the Spread of Bitcoin If you’ve spent any time in Brooklyn, you’re probably familiar with the works of Gadse. A typical intersection in the Bushwick neighborhood looks like this: Graffiti in these neighborhoods is prevalent. Sometimes it is beautiful street art commissioned by building owners. Sometimes it’s a pointless scrawl of a word or name that serves as not […]
- Account Enumeration and Random User Identifiers Security and user-friendliness are not always at ends, but making a product that is simultaneously user-friendly and secure is harder than a making product that accomplishes only one of those goals. In the battle to balance security and usability, usernames are a topic that is hotly debated amongst software developers and security evaluators. Because usernames […]
- Joining the Blockchain.info Team, OBPP 2014 was a big year for me. My love of crypto-currencies, and their security and privacy possibilities in particular, blossomed. A few of the highlights included: Publishing my first book, Anonymous Bitcoin: How to Keep Your ฿ All To Yourself Delivering online and offline presentations at the Texas Bitcoin conference, Bitcoin in the Beltway conference, […]
Money, Security, and Privacy for the 21st century.