david wong

Hey! I'm David, a security engineer at the Blockchain team of Facebook, previously a security consultant for the Cryptography Services of NCC Group. I'm also the author of the Real World Cryptography book. This is my blog about cryptography and security and other related topics that I find interesting.

Manually making a transaction in bitcoins posted February 2014

Ken Shirriff has posted an amazing post on his blog on how he managed to manually make (meaning, he didn't use the official bitcoin application) a transaction in the bitcoin ecosystem.

I'm reading through it as I'm typing this, and it's really well explained, you get to see exactly what he does in Python and there are pictures!

you can read it here


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