Public-key cryptography | Theory of computation | Distributed computing problems
A Byzantine fault (also Byzantine generals problem, interactive consistency, source congruency, error avalanche, Byzantine agreement problem, and Byzantine failure) is a condition of a computer system, particularly distributed computing systems, where components may fail and there is imperfect information on whether a component has failed. The term takes its name from an allegory, the "Byzantine generals problem", developed to describe a situation in which, in order to avoid catastrophic failure of the system, the system's actors must agree on a concerted strategy, but some of these actors are unreliable. In a Byzantine fault, a component such as a server can inconsistently appear both failed and functioning to failure-detection systems, presenting different symptoms to different observers. It is difficult for the other components to declare it failed and shut it out of the network, because they need to first reach a consensus regarding which component has failed in the first place. Byzantine fault tolerance (BFT) is the resiliency of a fault-tolerant computer system to such conditions. (Wikipedia).
Fall of The Roman Empire...in the 15th Century: Crash Course World History #12
In which John Green teaches you about the fall of the Roman Empire, which happened considerably later than you may have been told. While the Western Roman Empire fell to barbarians in 476 CE, the Byzantines in Constantinople continued the Eastern Empire nicely, calling themselves Romans fo
From playlist World History
18. The Early Middle Ages, 284--1000: The Splendor of Byzantium
The Early Middle Ages, 284--1000 (HIST 210) In this lecture, Professor Freedman surveys major trends in Byzantine history from the sixth to eleventh century, dividing the era into four periods. In the sixth century, under Justinian's rule, the Byzantine Empire experienced a period of ex
From playlist The Early Middle Ages, 284--1000 with Paul Freedman
A reputation based improvement over Byzantine Fault Tolerance (Paper Review)
- GURU Paper: https://eprint.iacr.org/2017/671.pdf - Reading List: https://github.com/Constellation-Labs/constellation/wiki/Recommended-Reading -Distributed-Algorithms texbook https://www.amazon.com/Distributed-Algorithms-Kaufmann-Management-Systems/dp/1558603484 - Pages on BFT: http://
From playlist Reviews
Emperor Zeno: The Saviour of the Byzantine Empire
If you wanna toss a couple of bucks my way https://www.patreon.com/ancientaccounts This video, Emperor Zeno the savior of the Byzantine Emperor is often overlooked, I was researching Caesar Augustus the guy that was the last Roman Emperor of the Roman Empire, i realized oh what was the Byz
From playlist Biographies
From the 15th-16th century the Ottoman Empire was at its peak. Its realm streched from North Africa to Egypt to the Arabian Peninsula. Its holdings included the Levant, Mesopotamia, the Caucasus, the Crimea, and the Balkans all the way to the gates of Vienna. It was by far the largest empi
From playlist History
Why Hagia Sophia Doesn't Collapse? Architect Explains
Hagia Sophia, one of the most precious jewels of ancient architecture, the Byzantine Basilica of the Holy Wisdom, Sancta Sophia. Join me and discover the secrets of this spectacular building. Like and subscribe to see more videos like this. Mira el vídeo en español: https://youtu.be/I-B_
From playlist Vídeos
Bitcoin Q&A: The 'Byzantine Generals Problem' Thought Experiment
Did the Byzantine Generals Problem really exist in the historical record, or is it just a thought experiment for fault tolerance? Is the Bitcoin network a middleman in the BGP? Is mining like a brute force attack? Chapters 0:00 Did the Byzantine Generals Problem really exist in the histor
From playlist Bitcoin Q&A
Justinian and the Byzantine Empire | World History | Khan Academy
Overview of the Byzantine Empire under its greatest strength under Justinian and then eventual slow decline over the next 900 years. Code of Justinian. Hagia Sophia. Empress Theodora's role in putting down the Nika Riots.
From playlist 600 - 1450 Regional and interregional interactions | AP World History | Khan Academy
Bitcoin Q&A: Sidechains and Federated Consensus
What are sidechains? What is Liquid and what are the use cases of sidechains? What are the differences to the Lightning Network? What do you think about Delegated Byzantine Fault Tolerance? What are issues with these federated models? Chapters 0:00 Do you see a danger of the sidechain mar
From playlist English Subtitles - aantonop Videos with subtitles in English
Blockchain Tutorial For Beginners - 2 | Blockchain Technology | Blockchain Tutorial | Simplilearn
🔥 Professional Certificate Program In Blockchain: https://www.simplilearn.com/blockchain-certification-training-course?utm_campaign=BlockchainTutorial2-ov8nVP6dowc&utm_medium=DescriptionFF&utm_source=youtube This Blockchain tutorial will help you understand what is block, how to add 2 blo
From playlist Blockchain Tutorial Videos 🔥[2022 Updated] | Simplilearn
Bitcoin Q&A: Offline Transactions and Fault Tolerance
Is it possible to do a bitcoin transaction without using the internet? How do transactions from paper wallets and physical bitcoins work? Does this solve the Byzantine Generals' Problem? NOTE: OpenDimes utilize some additional security measures, especially regarding key generation, which
From playlist English Subtitles - aantonop Videos with subtitles in English
The city of walls: Constantinople - Lars Brownworth
The world owes much of its cultural legacy to Constantinople's walls. When Constantinople was under seige by neighboring enemies, the Roman city's elaborate system of moats, outer walls, and inner walls stood tall. Surviving numerous fire attacks, the walls were eventually brought down by
From playlist Even More TED-Ed Originals
CERIAS Security: Survivable routing in wireless ad hoc networks 3/6
Clip 3/6 Speaker: Cristina Nita-Rotaru · Purdue University In an ad hoc wireless network nodes not in direct range communicate via intermediate nodes. Thus, a significant concern is the ability to route in the presence of Byzantine failures which include nodes that drop, fabricate, mo
From playlist The CERIAS Security Seminars 2005 (1)
Finding the Great Problems [Entire Talk]
Barbara Liskov was already breaking new ground in 1968, when she became one of the first American women to earn a doctorate in the emerging discipline of computer science. After receiving that PhD at Stanford, she went on to design several influential programming languages, including CLU,
From playlist Stanford Engineering Heroes
Stanford Seminar - Finding the Great Problems
Barbara Liskov MIT CSAIL October 16, 2019 Barbara Liskov was already breaking new ground in 1968, when she became one of the first American women to earn a doctorate in the emerging discipline of computer science. After receiving that PhD at Stanford, she went on to design several influen
From playlist MS&E472 - Entrepreneurial Thought Leaders - Stanford Seminars
Blockchain In-Depth Tutorial for Beginners | Blockchain Explained | All About Blockchain|Simplilearn
🔥 Professional Certificate Program In Blockchain: https://www.simplilearn.com/blockchain-certification-training-course?utm_campaign=BlockchainIn-DepthTutorialforBeginners-AWPisuBx1Zo&utm_medium=DescriptionFF&utm_source=youtube In this Blockchain In-depth Tutorial, you will learn ever
From playlist Blockchain Tutorial Videos 🔥[2022 Updated] | Simplilearn
Blockchain Tutorial | Blockchain Technology | Blockchain Explained | Blockchain Training|Simplilearn
🔥 Professional Certificate Program In Blockchain: https://www.simplilearn.com/blockchain-certification-training-course?utm_campaign=BlockchainTutorialSep12-C6NRcSZa1ds&utm_medium=DescriptionFF&utm_source=youtube In this Blockchain Tutorial, we'll tell you everything you need to know about
From playlist Blockchain Tutorial Videos 🔥[2022 Updated] | Simplilearn
Advanced Consensus Design | PyChain 2022
This is a video recording of the PyChain 2022 conference sessions. Speaker: Klaus Kursawe - Vega Protocol Designing modern consensus algorithms that minimise single leader issues like frontrunning. Klaus dives into consensus level design. In the first part, he will cover the basics of c
From playlist PyChain 2022
Determine Where the Function is Not Continuous
In this video I will show you how to Determine Where the Function is Not Continuous.
From playlist Continuity Problems