Archive for the ‘Cryptography’ Category
Bitcoin is a crypto-currency which leverages the Blockchain. Similar to a real currency, Bitcoin is hailed as a revolutionary technology for storing value. It’s popularity stems from distrust in real world currencies, the un-regulated printing of currencies like the US Dollar.
Bitcoin is governed by “developers” and infrastructure. Crypto Miners who facilitate the transactions within the Bitcoin ecosystem have a shared consensus to regulate and evolve the Bitcoin economy. Bitcoin has governed parameters which include a limit on quantity, blocksize and others.
Today, the Bitcoin community seeks to evolve Bitcoin with agreed changes. Segwit2x, also known as the New York Agreement, is an industry-wide compromise that CEO and founder of Digital Currency Group Barry Silbert spearheaded in May to activate the Segregated Witness (Segwit) scaling upgrade for Bitcoin. Key mining pools and exchanges that agreed to the aforementioned plan include Bitmain’s Antpool, Btc.top, Bixin, Btcc Pool, F2pool, Huobi, Okcoin, Viabtc, BW, 1Hash, Canoe, Batpool, and Bitkan.
The event and announcement closely follow Bitmain’s release of its hard fork protection plan against UASF BIP148, which CEO Jihan Wu has described as an attack on Bitcoin. He spoke at the Summit on June 14 about how to prevent BIP148 from activating, outlining its weaknesses.
China owns ~80% of Bitcoin mining infrastructure and typically plays a dominant role in the future of Bitcoin.
Read more here.
To read or process the Ashley Madison data is fairly straight forward. The dataset comes with a suite of files. These are:am_am.dump.gz aminno_member.dump.gz aminno_member_email.dump.gz member_details.dump.gz member_login.dump.gz CreditCardTransactions.7z README
Each of these files come with a PGP signature. You can use gunzip on a Mac (or unix platform) to extract the files. 7z files will require 7-Zip software on a Windows computer.
You will need MySQL software from Oracle to load this data. MySQL Community edition is free.Top Cities by Users for Ashley Madison
Here’s are the Top 100 cities. It’s interesting that Singapore doesn’t feature on the list at all. The city-state had banned the site in the interest of the family. It looks like the ban worked. Sydney, New York and Toronto looks like a hotbed of infidelity.São Paulo 374542 New York 268171 Sydney 251813 Toronto 222982 Santiago 218125 Melbourne 213847 Houston 186795 Los Angeles 181918 London 179129 Chicago 162444 Rio de Janeiro 156572 Madrid 135294 Bogotá 123559 Brisbane 118857 Brooklyn 110859 Miami 109505 Calgary 107021 San Antonio 99157 Dallas 97736 Brasília 97096 San Diego 94953 Perth 88754 Las Vegas 87720 Atlanta 86897 Philadelphia 86018 Edmonton 84971 Lima 82279 Phoenix 81913 Belo Horizonte 77834 香港 77561 Austin 77432 Columbus 73377 Montreal 72304 Washington 71779 Jacksonville 70134 Denver 70043 Mississauga 69403 Curitiba 68916 Barcelona 68513 Dublin 65658 Ciudad de México 64516 Orlando 63549 San Francisco 62333 Minneapolis 61403 灣仔 60674 Portland 60672 Charlotte 59686 Ottawa 58463 Seattle 56935 Indianapolis 56741 Buenos Aires 56701 Adelaide 55490 Tampa 55321 Cleveland 55031 Vancouver 52651 Fort Lauderdale 52554 Cincinnati 52055 Springfield 51644 Arlington 51345 Salvador 51069 San Jose 51043 Fort Worth 50976 Medellín 50308 Beverly Hills 49437 Bronx 49067 Boston 47951 Pittsburgh 47815 Kansas City 47793 Louisville 47239 Winnipeg 47202 Porto Alegre 47018 Saint Louis 46547 Richmond 46546 Buffalo 46532 North York 46223 Roma 46000 Johannesburg 45831 Sacramento 45777 Rochester 45216 Columbia 44541 Tucson 43293 Central 41900 Oklahoma City 41809 Salt Lake City 41773 El Paso 40914 Milwaukee 40392 Hamilton 40096 Cali 38847 Colorado Springs 38696 New Delhi 38620 London 38561 Brampton 38446 Madison 37813 Paris 37641 Saint Paul 37412 Cape Town 37001 Fortaleza 36922 Scarborough 35952 Albuquerque 35802 תל אביב יפו 35602
Yes, we have a copy of it. No, we’re not selling it. However, we’ll be putting our data analytics and data quality glasses on to see what lies within.
Several Australian cities featured prominently on the list of AM users. Singapore, which had banned the website was highly represented.
There is nothing special about Ashley Madison’s leak except that the brand attracts alot of negative emotions. They probably stepped on the toes on a capable geek. Reality is that nothing is safe on the internet, and transparency is your only defence.
Should Ashley Madison have done more to protect their data? Yes! The next simple step of basic data encryption should have been done. But it wasn’t.
Bye bye Ashley Madision. You’re not the first, and I am sure you won’t be the last. There is no defence against cheating spouses expect character, honesty, truth and love.
You’ve heard of bitcoin. Its built using the blockchain. This is a distributed database that keeps track of every bitcoin transaction. Bitcoin popularity may have diminished, but the importance of the blockchain as truly revolutionary technology remains.
The Internet’s key design objective was to survive nuclear attack. The need for resilience is what led to the distributed design pattern. But certain core features, like the IP address space and Domain Name Servers (DNS) systems were never decentralised as the solutions had yet to be defined.
Even early peer-to-peer products (like Skype and Napster) relied on managed super-nodes or centralised directories.
The blockchain provides a method of distributing trust and facilitating decentralised systems.
This excellent IEEE Spectrum essay explores how the blockchain could inveigle its way to improving core internet services from payment transactions, to online communities, to video games, to preventing spam email and more.