How to Recover Your Lost Bitcoin Wallet Password ...
BitcoinBrain WalletCracking and ... - Nicolas Courtois
Bitcoin Key Management: HD Wallets, BIP032 - Nicolas Courtois
NYC Bitcoin Center - Monday July 21st: Satoshi Square Bitcoin Trading and Special Guests Richard Amores (BIP32 Multi-Sig Business Wallet) and Dr. Nicolas Courtois (Cryptography professor speaking about speed of txns on the blockchain) - Free Open Bar & Pizza!
Another interim update while I'm having lunch; back from Bitcoin Expo 2015, which was great, just wish I could have stayed longer (had to fly down and back within the weekend, made it home around 11pm on Sunday)! Quick highlights:
Met with the Ethereum guys, got to talk to them about their stuff and /dogethereum/ (parody, in case anyone's uncertain) . They outlined a few (serious) ways we can use Dogecoin with Ethereum, and that sounded positive. They've also just announced a bug bounty, which seems to have just broken, but may be of interest as part of their progress towards launch.
Bought a Ledger; so far it's been a smooth experience, the requirement that you trust the PC you do initial setup on is a snag, but otherwise it seems to work well. So far, if it works as advertised, it's very impressive for the cost. I'll report back if it's still working in 6 months :-D I have their contact details and a quick outline of what's needed for Dogecoin support, and will be looking into what we need to do.
Back to wallets a second, Rivetz did a presentation on their software wallet that runs in trusted hardware.
There was a Dogecoin panel, which I think went well, and a good learning experience for myself as well. Hoping we'll have a video up of that soon.
Overall, good experience, was great to be there, and I'd like to thank Cryptoevents for inviting myself and the other Dogecoiners along. They have an event in Amsterdam coming up in March, which I can't attend myself unfortunately (moving house), but it would be great if others can make it along to: http://signup.webtcexpo.com/ Edit: Oh, and I've finally beaten the Toshi patch to support Dogecoin until it got through the Travis checks. Not sure why the changes caused problems, but somehow address balances ended up as floating point values instead of integer, which... yeah, anyway, it's done now, hopefully Coinbase will merge that in as I'd like to start building tools on top of Toshi. Edit 2: Clarify that /dogethereum is a parody.
It is known that brain wallets were using during July 2015 Flood Attack : https://en.bitcoin.it/wiki/July_2015_flood_attack Here we found and list 41 brain wallet addresses (uncompressed version) used in this attack. An example : password = "power" bitcoin address = "1HDmTVYGdpZhsZgZ2aDjKUWvMb1WTRucb6" https://blockchain.info/address/1HDmTVYGdpZhsZgZ2aDjKUWvMb1WTRucb6 The passwords used are the following: power tom the peter god car password1 password sex bob dog cat wallet Bitcoin Password1 frog free Money cookie sarah tree Rob freemoney cool1 Money2 Hamster Sean travel password2 master cow cows best donkey poker blockchain Bitcoins nitro food bestest coffee Nicolas Courtois & Guangyan Song from UCL
http://bitcoinference.com/2015/How-To-Steal-Bitcoins.html http://bitcoinference.com/2015/How-To-Steal-Bitcoins.html Nicolas Courtois On Hash Rate 51 and Protection Against Double Spending In Bitcoin and Other Crypto This video is unavailable. Watch Queue Queue. Watch Queue Queue Bitcoin and Cryptocurrency Technologies Online Course 263,963 views 58:42 What Bitcoin Private keys say to each other (Nicolas T. Courtois, October 2015) - Duration: 1:18:29.