Ken Shirriff's blog

Computer history, restoring vintage computers, IC reverse engineering, and whatever

iPad charger teardown: inside Apple's charger and a risky phony

This article is now available in Turkish iPad şarjının iç yapısı and Chinese [中文翻译版本] Apple iPad原装充电器拆解 . Apple sells their iPad charger...

The programming error that cost Mt Gox 2609 bitcoins

In October 2011, Mt Gox lost over 2609 bitcoins by accidentally creating transactions that can never be redeemed. (At the time, 2609 bitcoin...

Bitcoin mining the hard way: the algorithms, protocols, and bytes

This article explains Bitcoin mining in details, right down to the hex data and network traffic. If you've ever wondered what really h...

Hidden surprises in the Bitcoin blockchain and how they are stored: Nelson Mandela, Wikileaks, photos, and Python software

Every Bitcoin transaction is stored in the distributed database known as the Bitcoin blockchain. However, people have found ways to hack ...

The Bitcoin malleability attack graphed hour by hour

I have a new Bitcoin article: Hidden surprises in the Bitcoin blockchain The Bitcoin network was subject to a strange attack this week. U...

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