Bitcoin Q&A: Cryptographic Primitives
Channel: aantonop
Date: 2018-05-04

How are cryptographic primitives employed in Bitcoin? What are hashes and digital signatures? How does elliptic curve cryptography work? 

See details in Chapters 4 and 6 of 'Mastering Bitcoin': https://github.com/bitcoinbook/bitcoinbook/blob/f8b883dcd4e3d1b9adf40fed59b7e898fbd9241f/ch04.asciidoc
https://github.com/bitcoinbook/bitcoinbook/blob/f8b883dcd4e3d1b9adf40fed59b7e898fbd9241f/ch06.asciidoc#digital_sigs

Chapters
0:00 Can you explain the cryptography employed within the Bitcoin network, in digital signatures, in a little more detail, please?
1:33 One-way cryptographic function
2:40 Digital signatures use some tricks of addition and multiplication, knowing that division is impossible, to produce a proof that the person who has created the digital signature possesses the private key, without revealing that private key
4:00 Elliptic Curve Digital Signature Algorithm (ECDSA)

These questions are from the MOOC 9.3 session which took place on March 2nd 2018. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles.

If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop

RELATED:
Introduction to Bitcoin - https://youtu.be/l1si5ZWLgy0
Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0
Advanced Bitcoin Scripting: Transactions and Multisig - https://youtu.be/8FeAXjkmDcQ
The war on cash and crypto - https://youtu.be/BAlRKfvBnvw
MimbleWimble and Schnorr signatures - https://youtu.be/qloq75ekxv0
Mixing services - https://youtu.be/rKoMvOH4zoY
Atomic swaps - https://youtu.be/fNFBA2UmUmg
Directed acyclic graphs (DAGs) and IOTA - https://youtu.be/lfgMnbb5JeM
Decentralised exchanges with fiat - https://youtu.be/3Url8tbQEkA
Decentralised exchanges and counterparty risk - https://youtu.be/hi_jaw0dT9M
The Lightning Network - https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi
Secure, tiered storage system - https://youtu.be/uYIVuZgN95M
Using paper wallets - https://youtu.be/cKehFazo8Pw
Re-using addresses - https://youtu.be/4A3urPFkx8g
How to get people to care about security - https://youtu.be/Ji1lS9NMz1E
Migrating to post-quantum cryptography - https://youtu.be/dkXKpMku5QY

Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.

Follow on Twitter: @aantonop https://twitter.com/aantonop
Website: https://antonopoulos.com/

He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.

THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8

[NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8

MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042

[NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388

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