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Learn about bitcoins and how they work.
Videos by Zulfikar Ramzan. Zulfikar is a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire. He received his Ph.D. in computer science from MIT.
What is bitcoin?
An introduction to the mechanics of bitcoins and an overview of how transactions take place.
What cryptographic hash functions are and what properties are desired of them.
A high-level explanation of digital signature schemes, which are a fundamental building block in many cryptographic protocols.
The basic mechanics of a bitcoin transaction between two parties and what is included within a given bitcoin transaction record.
An explanation of cryptographic proof-of-work protocols, which are used in various cryptographic applications and in bitcoin mining.
The mechanics of a bitcoin transaction block chain, which is a construct that is generated by bitcoin miners and functions as a global ledger for recording and validating bitcoins.
The mechanisms by which the supply of bitcoins is controlled.
A detailed explanation of what makes bitcoin transaction block chains secure.