More info: https://blockchainhub.net/
Blockchain for Beginners: blockchains are the basis for auto enforceable smart contracts and dApps (decetralized applicatons).
An introduction to Blockchain (for nontechnical people)Miguel Neumann
Introduction to basic concepts of blockchain technologies oriented to non-technical audience, explaining in simple terms the capabilities and potential applications of the technology, created by Miguel Neumann for the launch of the Swisscom sponsored Blockchain Meetup in Zurich, for DXMarkets.
A CIO Roundtable briefing on the disruptive nature of the Blockchain, Bitcoin and Ethereum. We'll take a look at Smart Contracts, Digital Tokens and a dozen or so use cases within Financial Services, IOT, Healthcare and Government.
Topics Covered:
What is the BlockChain
Economics behind Digital Currencies
Blockchain Trivia
Use Cases
More info: https://blockchainhub.net/
Blockchain for Beginners: blockchains are the basis for auto enforceable smart contracts and dApps (decetralized applicatons).
An introduction to Blockchain (for nontechnical people)Miguel Neumann
Introduction to basic concepts of blockchain technologies oriented to non-technical audience, explaining in simple terms the capabilities and potential applications of the technology, created by Miguel Neumann for the launch of the Swisscom sponsored Blockchain Meetup in Zurich, for DXMarkets.
A CIO Roundtable briefing on the disruptive nature of the Blockchain, Bitcoin and Ethereum. We'll take a look at Smart Contracts, Digital Tokens and a dozen or so use cases within Financial Services, IOT, Healthcare and Government.
Topics Covered:
What is the BlockChain
Economics behind Digital Currencies
Blockchain Trivia
Use Cases
Blockchain. Everyone talks about it, but how does it really work?
This talk covers the fundamentals and discusses real world examples of how blockchain is being used to transform healthcare, real estate, humanitarian aid, governance and other domains.
See the original talk at: https://www.facebook.com/thekasbahhub/videos/1875008969491362/
The fundamental security properties of blockchain originate from both bitcoin architecture and cryptography advances. the proficiency of the cryptographic chain of blocks was advanced giving birth to various inborn security qualities.
9 BUILDING BLOCKS FOR A SUCCESSFUL BLOCKCHAIN INDUSTRY | BLOCKSTARS.IOBlockStars.io
Want to go beyond Bitcoins? We outline what is needed for a successful blockchain industry in 9 simple building blocks.
We view each one as critical infrastructure to enable sustainable commercial businesses to operate on a blockchain.
Web3 Security: The Blockchain is Your SIEMTal Be'ery
2021’s hottest new tech term, according to TechCrunch, was “definitely Web3”. Web3, as its name suggests, is considered by many as the future of the internet: decentralized, permissionless, and based on modern blockchain technology. While Web3 might have a bright future, it’s in the middle of growing pains: A number of Web3 apps were hacked in 2021, leading to theft of cryptoassets valued at hundreds of millions of US Dollars. In this talk we will present Web3 app technology, dissect new attack surfaces, and suggest new and exciting defense mechanisms.
First, we will dive into the technical details of Web3 applications, showing how Web3 technology opens new attack surfaces by moving app functionality onto the blockchain. We will then analyze these newly-exposed attack surfaces by reviewing a few examples we’ve discovered “in the wild.”
While Web3 exposes new attack surfaces, it also provides novel detection opportunities. Specifically, the public and transparent nature of the blockchain allows security researchers to immediately explore full details of any attack and, as a result, leads to quick and thorough discoveries. This is a paradigm shift in security research, as current practices only allow a few to learn actual attack details, only some portions of which are shared publicly. This shift in transparency allowed us to independently explore the aforementioned attacks.
Furthermore, we believe we can do even better and go beyond rapid post-mortem reports. We will show how the same raw data we had previously used for a post-mortem analysis can be analyzed in real-time (or even ante factum by “taking a peek” into the blocks that have yet to be mined) to detect and even prevent attacks. This capability is enabled by the online nature of the blockchain and its inherent block time delays. In fact, we can import, with relevant modifications, many of the principles and learnings of current web defenses, including Web Application Firewall (WAF) into the realm of blockchain. By doing so, we introduce a scheme for a Web3 Application Firewall (W3AF) which can greatly improve Web3 security and blockchain-based apps.
More info: https://blockchainhub.net/
Ethereum for Beginners: History of the Blockchain & Ethereum, Components, Outlook, Web 3.0, Serverless, Decetralized Universal World Computer
A talk I gave, as part of a roundtable on CivicTech, on blockchain and smart contracts. Legal considerations are discussed as well as the technology considerations.
I have been presenting blockchain and bitcoin to several companies and audiences in the past 2 years (mostly financial companies).
I started taking notes of their questions as it allows me to reconstruct their thought process while they discover and familiarize themselves with the concepts. These slides have been prepared for investment fund based in Luxembourg. I worked with the Head of Market Research to make the presentation tailored to their needs. Although we tried not to abuse simplifications, we had to gloss over many details and use analogies.
The team was particularly interested in the ecosystems and applications.
Here are the questions I could write down or remember, in their order. Hopefully they will help someone giving similar presentations to similar audiences.
+ Where is actually the blockchain?
+ Do I need all the blocks?
+ How big is it? If the data keeps adding one day it would take *hours* to download
+ In a peer to peer network how are people discovered?
+ Are there people checking all the blocks to verify the transactions? Could i do it?
+ Why do miners would want to do work to validate transactions?
+ Could I mine myself? How?
+ Why am i not mining if i can make 12.5 btc?
+ When does the blockchain ends?
+ What does prevent people from using bitcoin for illegal activities?
+ How could governemnts block it? How can it be shutdown
+ How can transactions be traced? Is it anonymous?
+ Where is the mempool?
+ What prevents everyone to do his own coin?
+ Where does it start? What happens if Satoshi sells its coins? + How was the 21M coins cap decided? Who decided it? Can it be changed?
+ Does the protocol evolve? who modifies it? what happens if some people don't want the modification.
+ If second layers protocols arrive (Lighting) would miners still be required?
+ What is difficulty and why 10minutes per block? Who decides how difficulty is updated? Based on what?
+ Can i do my ICO? How is it done?.
+ Is it legal? How is the crypto business legally recognised.
+ Which countries are more open to blockchain
+ How will governements tax it?
* Credits to Alex Fishers for the PPT template
Structured approach to blockchain and consensus techniquesVasiliy Suvorov
An overview of history and available research on various consensus techniques, blockchain and DLTs design. Bitcoin, Tendemint, Ripple, Ethereum, IOTA and Corda were used as examples.
These slides were originally presented at CryptoValley meetup on Dec 6, 2016 in Zug.
The Blockchain - The Technology behind Bitcoin Jérôme Kehrli
The blockchain and blockchain related topics are becoming increasingly discussed and studied nowadays. There is not one single day where I don't hear about it, that being on linkedin or elsewhere.
I interested myself deeply in the blockchain topic recently and this is the first article of a coming whole serie around the blockchain.
This presentation is an introduction to the blockchain, presents what it is in the light of its initial deployment in the Bitcoin project as well as all technical details and architecture concerns behind it.
We won't focus here on business applications aside from what is required to present the blockchain purpose, more concrete business applications and evolutions will be the topic of another presentation I'll post in a few weeks
Blockchain. Everyone talks about it, but how does it really work?
This talk covers the fundamentals and discusses real world examples of how blockchain is being used to transform healthcare, real estate, humanitarian aid, governance and other domains.
See the original talk at: https://www.facebook.com/thekasbahhub/videos/1875008969491362/
The fundamental security properties of blockchain originate from both bitcoin architecture and cryptography advances. the proficiency of the cryptographic chain of blocks was advanced giving birth to various inborn security qualities.
9 BUILDING BLOCKS FOR A SUCCESSFUL BLOCKCHAIN INDUSTRY | BLOCKSTARS.IOBlockStars.io
Want to go beyond Bitcoins? We outline what is needed for a successful blockchain industry in 9 simple building blocks.
We view each one as critical infrastructure to enable sustainable commercial businesses to operate on a blockchain.
Web3 Security: The Blockchain is Your SIEMTal Be'ery
2021’s hottest new tech term, according to TechCrunch, was “definitely Web3”. Web3, as its name suggests, is considered by many as the future of the internet: decentralized, permissionless, and based on modern blockchain technology. While Web3 might have a bright future, it’s in the middle of growing pains: A number of Web3 apps were hacked in 2021, leading to theft of cryptoassets valued at hundreds of millions of US Dollars. In this talk we will present Web3 app technology, dissect new attack surfaces, and suggest new and exciting defense mechanisms.
First, we will dive into the technical details of Web3 applications, showing how Web3 technology opens new attack surfaces by moving app functionality onto the blockchain. We will then analyze these newly-exposed attack surfaces by reviewing a few examples we’ve discovered “in the wild.”
While Web3 exposes new attack surfaces, it also provides novel detection opportunities. Specifically, the public and transparent nature of the blockchain allows security researchers to immediately explore full details of any attack and, as a result, leads to quick and thorough discoveries. This is a paradigm shift in security research, as current practices only allow a few to learn actual attack details, only some portions of which are shared publicly. This shift in transparency allowed us to independently explore the aforementioned attacks.
Furthermore, we believe we can do even better and go beyond rapid post-mortem reports. We will show how the same raw data we had previously used for a post-mortem analysis can be analyzed in real-time (or even ante factum by “taking a peek” into the blocks that have yet to be mined) to detect and even prevent attacks. This capability is enabled by the online nature of the blockchain and its inherent block time delays. In fact, we can import, with relevant modifications, many of the principles and learnings of current web defenses, including Web Application Firewall (WAF) into the realm of blockchain. By doing so, we introduce a scheme for a Web3 Application Firewall (W3AF) which can greatly improve Web3 security and blockchain-based apps.
More info: https://blockchainhub.net/
Ethereum for Beginners: History of the Blockchain & Ethereum, Components, Outlook, Web 3.0, Serverless, Decetralized Universal World Computer
A talk I gave, as part of a roundtable on CivicTech, on blockchain and smart contracts. Legal considerations are discussed as well as the technology considerations.
I have been presenting blockchain and bitcoin to several companies and audiences in the past 2 years (mostly financial companies).
I started taking notes of their questions as it allows me to reconstruct their thought process while they discover and familiarize themselves with the concepts. These slides have been prepared for investment fund based in Luxembourg. I worked with the Head of Market Research to make the presentation tailored to their needs. Although we tried not to abuse simplifications, we had to gloss over many details and use analogies.
The team was particularly interested in the ecosystems and applications.
Here are the questions I could write down or remember, in their order. Hopefully they will help someone giving similar presentations to similar audiences.
+ Where is actually the blockchain?
+ Do I need all the blocks?
+ How big is it? If the data keeps adding one day it would take *hours* to download
+ In a peer to peer network how are people discovered?
+ Are there people checking all the blocks to verify the transactions? Could i do it?
+ Why do miners would want to do work to validate transactions?
+ Could I mine myself? How?
+ Why am i not mining if i can make 12.5 btc?
+ When does the blockchain ends?
+ What does prevent people from using bitcoin for illegal activities?
+ How could governemnts block it? How can it be shutdown
+ How can transactions be traced? Is it anonymous?
+ Where is the mempool?
+ What prevents everyone to do his own coin?
+ Where does it start? What happens if Satoshi sells its coins? + How was the 21M coins cap decided? Who decided it? Can it be changed?
+ Does the protocol evolve? who modifies it? what happens if some people don't want the modification.
+ If second layers protocols arrive (Lighting) would miners still be required?
+ What is difficulty and why 10minutes per block? Who decides how difficulty is updated? Based on what?
+ Can i do my ICO? How is it done?.
+ Is it legal? How is the crypto business legally recognised.
+ Which countries are more open to blockchain
+ How will governements tax it?
* Credits to Alex Fishers for the PPT template
Structured approach to blockchain and consensus techniquesVasiliy Suvorov
An overview of history and available research on various consensus techniques, blockchain and DLTs design. Bitcoin, Tendemint, Ripple, Ethereum, IOTA and Corda were used as examples.
These slides were originally presented at CryptoValley meetup on Dec 6, 2016 in Zug.
The Blockchain - The Technology behind Bitcoin Jérôme Kehrli
The blockchain and blockchain related topics are becoming increasingly discussed and studied nowadays. There is not one single day where I don't hear about it, that being on linkedin or elsewhere.
I interested myself deeply in the blockchain topic recently and this is the first article of a coming whole serie around the blockchain.
This presentation is an introduction to the blockchain, presents what it is in the light of its initial deployment in the Bitcoin project as well as all technical details and architecture concerns behind it.
We won't focus here on business applications aside from what is required to present the blockchain purpose, more concrete business applications and evolutions will be the topic of another presentation I'll post in a few weeks
Blockchain: The Information Technology of the FutureMelanie Swan
The blockchain concept may be one of the most transformative ideas to impact the world since the Internet. Cryptocurrencies like bitcoin are merely one application of the blockchain concept. The blockchain is a public transaction ledger built in a decentralized network structure based on cryptographic principles so that any kind of trading, buying and selling of assets does not need to go through a centralized intermediary. Any kind of asset may be encoded into the blockchain and transacted, validated, or preserved in a much more efficient manner than at present including ideas, health data, financial assets, automobiles, and government documents. Venture Capitalists are calling the blockchain the next big investment wave.
An introduction to the Internet of Things for people interested in getting a first glance of this fascinating field of the future.
We cover the following subjects:
- defining the internet of things
- its architecture
- reasons why consumers and companies should care
- Lots of Examples
- How to prototype IoT devices
- Challenges for IoT endeavor
- The Opportunities that lay in this field
- Good books on IoT
This is a updated version of last year's IoT presentation we gave.
Introdução ao Ethereum, Uma Plataforma BlockchainRenato Guimaraes
Ethereum é uma plataforma blockchain aberta que permite a qualquer pessoa construir e usar aplicativos descentralizados que funcionam em tecnologia blockchain.
Bloq: Bringing Enterprise to BlockchainJeff Garzik
Presented at Global Blockchain Summit Shanghai 2016, describing how Bloq is opening the door to bitcoin blockchain through open source and open networks.
DApps all around - the state of decentralized developmentBlockStars.io
At www.bitcoinference.com autumn 2015, Aron van Ammers showed five decentralized apps with working versions available today, to give an impression of what is and isn't possible in the current state of decentralized development.
From "decentralized money" to "decentralized everything", Bitcoin has inspired a revolution in application development. Blockchain technology like Ethereum enables a wide range of possibilities far beyond currency.
Decentralized apps (DApps) are applications that don't require a central party or server to function, typically backed by a blockchain. Aron van Ammers gave a showcase of five DApps currently available or being developed and highlighted their challenges and possibilities.
Will blockchain technology prove to be the biggest disruptor the digital industry has yet faced? Or is it the salvation for creatives and content creators? What exactly is the blockchain? This breakfast briefing will unlock the mystery as you hear from thought leaders and digital practitioners on what the next big thing means for digital.
Benjamin discusses some of the issues with identity fraud in the UK and how blockchain can be used to combat this problem.
Here Blockchain and CryptoAsset (K) Ltd. give a view of how cryptocurrency or cryptoassets fit into the wider technological space involving blockchain and related technologies and the investment opportunities made available.
A free-flowing, non-technical guide to NFTs.
The guide starts with blockchain basics and gradually builds to explain NFT use cases in the metaverse and how brands are using NFTs to engage with customers.
A lot of resources are added towards the end to let the reader continue her journey in the web3.
BLOCKCHAIN, DIGITAL WALLET And CRYPTOCURRENCYsanidulsattar
A Complete Presentation on history, working, analysis of BLOCKCHAIN, DIGITAL WALLET And CRYPTOCURRENCY.
And Crypto mining and how Bitcoin actually works.
This presentation is part of New Product Developers (NPD) meetup regularly conducted by Divum. In this session, we covered gentle introduction to blockchain to running a truly decentralised Pizza ordering application built using solidity on ethereum.
BlockChain basics for the non-technical banker covering what's happening, what the opportunities are, and the problems we all face. Covers BitCoin and Ethereum with brief mentions made of Ripple and the HyperLedger project.
This presentation is about blockchain.
When Thomas Edison invented the electric lamp in 1879, he did not make a market analysis. The market did not have an identified need for a lamp but for light. This is a kind of disruptive original ideas.
Satoshi Nakamoto (a person or a group) did not do a market analysis neither . The blockchain was born after the financial crisis of 2008 as people lost trust in banks.
Satoshi Nakamoto introduced a new model of trust based on cryptographic proof in a decentralised & distributed ledger.
What is bloackchain technology ? Why blockchain is disruptive? And what are the main blockchain technologies ?
Discussed about the Blockchain and how it works
Also the advantages of Blockchain over centralized system and some drawbacks are also mentioned.
Discussion on bitcoin and Cryptocurrency
Creating our own cryptocurrency for startups.
Snapshots are attached.
In an era of rapid technological advancements, understanding cryptocurrencies is no longer optional; it's a necessity. Our guide is meticulously designed to cater to both beginners and seasoned investors, offering insights, strategies, and practical advice that will empower you to make informed decisions in this dynamic market.
Our Comprehensive Cryptocurrency Guide is your passport to the exciting and potentially lucrative world of digital assets. Whether you're looking to invest, trade, or simply broaden your financial knowledge, our guide will equip you with the skills and confidence you need to thrive in the cryptocurrency landscape.
How the Blockchain and Crypto Currencies are dramatically reshaping the way the world works.... empowering the 99%. Presented by Meg Montgomery http://electricmeg.com
Impact of Blockchain on IT AuditBlockchain Techn.docxsheronlewthwaite
Impact of Blockchain on IT Audit
Blockchain Technology Overview
Three Levels of Blockchain, Tokens
Alliances and Industry Adoption
Smart Contracts
Identity Management
Criticism and Challenges
Impact on the IT Audit Function
Learning and Engagement
Agenda
*
Blockchain technology is a digital innovation that is poised to significantly alter financial markets within the next few years, within a cryptographic ecosystem that has the potential to also significantly impact trusted computing activities and therefore cybersecurity concerns as a whole.
Blockchain Overview
.
*
How many of you:
Have heard of bitcoins?
Own cryptocurrency?
Feel you understand the underlying blockchain technology?
Feel you can summarize for us the benefits of the “trust economy”?
Are involved in projects that involve blockchain technology implementation or related activities?
Student Exposure
*
Where It All Started
Blockchain technology was first introduced in a whitepaper entitled: “Bitcoin: A Peer-to-Peer Electronic Cash System,” by Satoshi Nakamoto in 2008.
No reliance on trust
Digital signatures
Peer-to-peer network
Proof-of-work
Public history of transactions
Honest, independent nodes control majority of CPU computing power
Nodes vote with CPU computing power
Rules and incentives enforced through consensus mechanism
https://bitcoin.org/bitcoin.pdf
*
Cryptocurrency Summarized
Bitcoin was the first digital, i.e., cryptocurrency
A maximum of 21 million Bitcoins can be generated
Just as with real world mining, energy must be invested to solve complex mathematical problems by which systems earn Bitcoins
https://www.cryptocoincharts.info/coins/info claims to be indexing 4,220 cryptocurrencies
Most circulated: Bitcoin, Ethereum, Litecoin
*
The Technology Behind Bitcoin
Think of Bitcoin as an electronic asset (as well as a digital currency)
A network of computers keeps track of Bitcoin payments, and adds them to an ever-growing list of all the Bitcoin payments that have been made, called “The Bitcoin Blockchain”
The file that contains data about all the Bitcoin transactions is often called a “ledger”
Bitcoin value is created through transaction processing, referred to as “mining,” which is performed by distributed processors called “nodes” of the peer-to-peer network
A Gentle Introduction to Bitcoin by Antony Lewis, https://bravenewcoin.com/assets/Reference-Papers/A-Gentle-Introduction/A-Gentle-Introduction-To-Bitcoin-WEB.pdf
*
Mining Evolution
Mining is the process whereby value is created through transaction processing that occurs on nodes of the network.
In 2009, one could mine 200 Bitcoins with a personal, home computer. In 2015, it would take about 98 years to mine just 1 Bitcoin.
Today there is almost no money to be made through traditional home mining.
ASIC (Application Specific Integrated Circuit) has been designed strictly for mining Bitcoins.
Groups of miners have formed mining pools, with each being paid their relati ...
Enhancing Enterprise Architecture with Artificial IntelligencePatrice Kerremans
Some of the Enterprise Architect's tasks seem very suitable to be augmented by Artificial Intelligence.
Take, for instance, finding links between applications and business objects. This is a time-consuming task. That's why it is only performed once every one or two years. But ideally it would be run every month or even every week.
If only we could automate such tasks...
Cloud Spotting 2017: An overview of cloud computingPatrice Kerremans
An overview of cloud computing I taught to students. With a strong bias towards Amazon Web Services (AWS). Some examples are included as well as an overview of the most important AWS services.
Applying Inversion of Control to SOA is an interesting idea. It increases the level of decoupling beyond standard implementations of SOA services. It comes with advantages and challenges of course, both of which we discuss.
I was asked to answer the following question on the RouteYou event "Research met en voor de geomatica-industrie v.2.0": "Will mobile change our view on the world and the way we move about in it?"
More on the event: https://sites.google.com/a/routeyou.com/research4geomaticadec2011/
Prepared a presentation to give a broad overview of some of the current concerns and approaches for Mobile App/Web Development for the students of the Karel de Grote Hogeschool
This is a summary of the fantastic guide Mrs. Typaldos wrote about setting up and maintaining successful community websites.
http://www.typaldos.com/12principles.htm
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
5. Bitcoin is the tip of the Ice berg
The blockchain can be used for any property transaction
The Blockchain is the single source of truth
It is distributed and doesn’t require middlemen
It is virtually unhackable due to this distributed nature
SUMMARIZED
8. A PURELY PEER-TO-PEER VERSION OF
ELECTRONIC CASH [WHICH] WOULD ALLOW
ONLINE PAYMENTS TO BE SENT DIRECTLY
FROM ONE PARTY TO ANOTHER WITHOUT
GOING THROUGH A FINANCIAL INSTITUTION.
2008 - Satoshi Nakamoto - whitepaper
INTRODUCTION OF THE BITCOIN CONCEPT
9.
10. THE BLOCK CHAIN IS …
A chain of blocks (duh!)
Blocks containing transactions and referencing previous blocks…
Genesis Block
11. THE TIMES 03/JAN/2009
CHANCELLOR ON BRINK
OF SECOND BAILOUT FOR
BANKS
BitCoin Genesis Block’s Coinbase Parameter
THE FAMOUS BITCOIN GENESIS BLOCK
12. SOLVING A VERY DIFFICULT PUZZLE
PROOF OF WORK
Find a hash that starts with a number of leading zeros
The acting of searching for this nonce is called mining
The first miner to find this nonce is rewarded new
bitcoins that are created by
adding a Coinable Transaction to the block.
Coinbase Transaction = reward
Regular Transactions
16. WHAT IS BLOCKCHAIN
NOT CENTRALIZED, NOT DECENTRALIZED, DISTRIBUTED
Every node in the network has a full copy of the entire blockchain
17. TEXT
THE BLOCKCHAIN
Distributed
No central, nor decentralized power(s) has control over the
system
Immutable
means that something is unchanging over time or unable to
be changed
Traceable
Since all transactions are timestamped and linked to
previous transactions they can be traced & audited
public / pseudo anonymous
Anyone can join the blockchain and use it to submit
transactions. No KYC -yet- so some privacy
Crypto-key based extremely secure
Smart Contracts promising technology
24. THE PROBLEM EXPLAINED
A1 and A2 have not yet agreed on a attack time
A2 only attacks if A1 attacks and vice-versa
A1 nor A2will perish if they attack B alone
A1 and A2 can only send messages with messengers that have to go
through the valley
RULES
Of the Fight
26. SOLUTION
NAKAMOTO ALGORITHM
by having a large enough amount of generals (miners)
fight (mine) a heavy terrain (puzzle) should begged
enough a deterrent for traitors (hackers)
29. ETHEREUM
BETTER THAN BITCOIN (?)
▸ In Ethereum the block time is set to twelve seconds compared to Bitcoins 10 minutes. This allows for faster transaction times. Ethereum does this by
using the Ghost protocol.
▸ Ethereum has a slightly different economic model than Bitcoin – Bitcoin block rewards halve every 4 years whilst Ethereum releases the same amount
of Ether each year ad infinitum.
▸ Ethereum has a different method for costing transactions depending on their computational complexity, bandwidth use and storage needs. Bitcoin
transactions compete equally with each other. This is called Gas in Ethereum and is limited per block whilst in Bitcoin it is limited by the block size.
▸ Ethereum has its own Turing complete internal code... a Turing complete code means that given enough computing power and enough time...
anything can be calculated. With Bitcoin there is not this form of flexibility.
▸ Ethereum was crowd funded whilst Bitcoin was released and early miners own most of the coins that will ever be mined. With Ethereum 50% of the
coins will be owned by miners in year five.
▸ Ethereum discourages centralized pool mining through its Ghost protocol rewarding stale blocks. There is no advantage to being in a pool in terms
of block propagation.
▸ Ethereum uses a memory hard hashing algorithm called Ethash that mitigates against the use of ASICS, and encourages decentralised mining by
individuals using their GPU’s.
https://www.cryptocompare.com/coins/guides/why-is-ethereum-different-to-bitcoin/
32. HYPERLEDGER (OR THE HYPERLEDGER PROJECT) IS A CROSS-INDUSTRY
COLLABORATIVE EFFORT, STARTED IN DECEMBER 2015 BY THE LINUX
FOUNDATION, TO SUPPORT BLOCKCHAIN-BASED DISTRIBUTED LEDGERS.
IT IS FOCUSED ON LEDGERS DESIGNED TO SUPPORT GLOBAL BUSINESS
TRANSACTIONS, INCLUDING MAJOR TECHNOLOGICAL, FINANCIAL, AND
SUPPLY CHAIN COMPANIES, WITH THE GOAL OF IMPROVING MANY
ASPECTS OF PERFORMANCE AND RELIABILITY.
wikipedia
HYPERLEDGER
34. R3 (R3CEV LLC) IS A BLOCKCHAIN TECHNOLOGY
COMPANY. IT LEADS A CONSORTIUM OF 45
FINANCIAL COMPANIES IN RESEARCH AND
DEVELOPMENT OF BLOCKCHAIN USAGE IN THE
FINANCIAL SYSTEM.
wikipedia
R3
36. COMPARISON
HyperLedger Ethereum Bitcoin
Description
General Purpose
Blockchain
General Purpose
Blockchain
Transactions
Blockchain
Governance Linux Foundation Ethereum Developers Bitcoin Developers
Currency none Ether Bitcoin
Mining Reward none Ether Bitcoin
Consensus Network Pluggable Mining Mining
Network Private or Public Public or Private Public
Privacy Open to Private Open Open
Smart Contracts
Multiple
Programming languages
Solidity
Programming Language
Not baked in
39. SMART CONTRACT
IF (CONDITIONS ARE MET) THEN
EXECUTE THESE TERMS
The use of code and a blockchain to execute logic if certain conditions are met.
Execution is not “forgotten”, it is automatic.
No discussion about the conditions or terms,
since code is unambiguous.
You still need lawyers to make sure the rules
are properly defined.
Faster and cheaper.
40. THE PHRASE "SMART CONTRACTS" WAS
COINED BY LEGAL THEORIST COMPUTER
SCIENTIST NICK SZABO IN 1994*
wikipedia
SMART CONTRACTS
* the idea was around since the 70s, though
45. A DECENTRALIZED AUTONOMOUS ORGANIZATION
THAT IS RUN THROUGH RULES ENCODED AS
COMPUTER PROGRAMS CALLED SMART CONTRACTS.
A DAO'S FINANCIAL TRANSACTION RECORD AND
PROGRAM RULES ARE MAINTAINED ON A BLOCKCHAIN
wikipedia
DAO - DECENTRALIZED AUTONOMOUS ORGANIZATION
49. ADDING A “DOCUMENT” TO THE BLOCKCHAIN
C35AD8A76CF51E00E
6E3DADAE01712C7DD
CFF83CA7125D1D3BB
2A8D7A57B10CD
21/09/2016
50. TEXT
GHANA - BITLAND
Ghana Blockchain Cadastral Land
Registration Registry Technology 2016
by NGO Bitland:
‣ Investigate the issued land title (land commission of Ghana)
‣ Survey the land (real estate)
‣ Confirm the land-title validity (talk to nearby neighbours).
‣ Record the property GPS coordinates with a GPS device
‣ Submit the collected data and information into the Blockchain
ledger
‣ Issue a paper certificate to the rightful property owner
51. TEXT
BLOCK NOTARY AN TIERON
▸ Sending a picture to the blockchain and
receiving a receipt for it.