Our Research Publications About Crypto Currencies and Their Security:
- Nicolas T. Courtois and Rebekah Mercer:
Stealth Address and Key Management Techniques in Blockchain Systems;
in proceedings of ICISSP 2017, 19-21 Feb 2017, Porto, Portugal. - Nicolas T. Courtois:
Features or Bugs: The Seven Sins of Current Bitcoin,
In Banking Beyond Banks and Money,
pp. 97-120, 1 September 2016, Springer.
Available here.ISBN: 978-3-319-42446-0 (Print) 978-3-319-42448-4 (Online) -
Nicolas Courtois, Guangyan Song, Ryan Castellucci:
Speed Optimizations in Bitcoin Key Recovery Attacks,
In CECC 2016, post-proceedings of Tatracrypt 2016 conference to appear,
earlier preprint available here (8 February 2016), Some basic slides can be found here. - Nicolas T. Courtois, Pinar Emirdag and Filippo Valsorda:
Private Key Recovery Combination Attacks: On Extreme Fragility of Popular Bitcoin Key Management, Wallet and Cold Storage Solutions in Presence of Poor RNG Events,
16 October 2014, preprint available here. - Nicolas Courtois:
On The Longest Chain Rule and Programmed Self-Destruction of Crypto Currencies.
Here is a video about the Longest Chain Rule and 51% attacks. - Nicolas T. Courtois, Pinar Emirdag and Daniel A. Nagy:
Could Bitcoin Transactions Be 100x Faster?,
appears in proceedings of
SECRYPT 2014, 28-30 August 2014, Vienna, Austria.
An extended version in preparation.
Her is our poster about improving bitcoin speed
presented at SECRYPT 2014. - Nicolas T. Courtois, Pinar Emirdag and Zhouyixing Wang:
On Detection of Bitcoin Mining Redirection Attacks, In ICISSP 2015, 1st International Conference on Information Systems Security and Privacy, 9-11 Feb 2015, Angers, France. Here is the paper and here are slides presented. - Nicolas Courtois, Marek Grajek, Rahul Naik:
Optimizing SHA256 in Bitcoin Mining.
In proceedings of CSS 2014, Springer, 2014.
Available here. And here are our detailed slides on bitcoin mining. - Nicolas Courtois, Marek Grajek, Rahul Naik:
The Unreasonable Fundamental Incertitudes Behind Bitcoin Mining, 31 October 2013. Available here. Older slides of May 2014. Later extended slides on bitcoin mining. - Nicolas Courtois, Lear Bahack:
On Subversive Miner Strategies and Block Withholding Attack in Bitcoin Digital Currency.
- Nicolas Courtois, Marek Grajek, Rahul Naik:
The Unreasonable Fundamental Incertitudes Behind Bitcoin Mining.