Bitcoin is a decentralized digital currency that uses cryptography to secure online transactions without relying on central authorities. It works by maintaining a distributed ledger called the blockchain that records all transactions. Transactions are authenticated through digital signatures and verified by the network through proof-of-work mining to prevent double spending. While providing pseudonymity, Bitcoin transactions are publicly visible on the blockchain, compromising user privacy. Zerocoin was proposed to add an anonymous currency layer on top of Bitcoin through cryptographic commitments and zero-knowledge proofs to allow untraceable transactions.
Cryptocurrencies like Bitcoin aim to enable digital cash transactions that are secure, private, and preserve users' anonymity. Bitcoin introduced a decentralized digital currency using cryptography and a peer-to-peer network to validate transactions without a central authority. It uses public key cryptography, digital signatures, and cryptographic hash functions to secure transactions and prevent double spending. While Bitcoin provides pseudonymity, all transactions are recorded on the public blockchain, compromising users' privacy. Zerocoin was developed to add an anonymous currency on top of Bitcoin using zero-knowledge proofs to allow users to exchange bitcoins for untraceable zerocoins and back without revealing their identities.
Bitcoin is a cryptocurrency that was created in 2009 as a decentralized digital currency not controlled by any central authority like a bank. It uses cryptography to secure transactions and generate new units of currency. Transactions are recorded on a public ledger called the blockchain. New bitcoins are "mined" by solving complex math problems, and the total number that can ever be created is limited to 21 million. While bitcoin offers advantages like instant transactions and anonymity, it also has risks like high volatility and the inability to recover funds if private keys are lost.
Bitcoin is a digital currency that allows for decentralized peer-to-peer transactions without a central authority. It was created in response to distrust of financial institutions and high transaction costs. Bitcoin uses public/private key cryptography and a distributed ledger called the blockchain to ensure transaction security and prevent double spending. New bitcoins are "mined" by solving complex math problems, rewarding miners with new coins. As more bitcoins enter circulation, the difficulty of mining increases.
Bitcoin is a digital currency that allows for decentralized peer-to-peer transactions without a central authority. It was created in response to distrust of financial institutions and high transaction costs. Bitcoin uses public/private key cryptography and a distributed ledger called the blockchain to ensure transaction security and prevent double spending. New bitcoins are "mined" by solving complex math problems, and miners are paid in bitcoin.
The document discusses cryptocurrency and blockchain technology. It begins by asking whether people like or dislike cryptocurrency. It then provides explanations of key concepts related to blockchain like how blockchain batches transactions into blocks and uses cryptography to securely link blocks together in a distributed ledger. It provides an analogy comparing transactions, blocks, and the blockchain to lines, chapters, and a book. It discusses why someone may want to reverse transactions and explains the process of mining blocks for verification and rewards. Finally, it summarizes some terms related to cryptocurrency and blockchain and asks if the reader understands.
14 Jan17- Nullmeets -Blockchain concept decoded by Ninad SarangNinad Sarang
Blockchain is a distributed public ledger that records all Bitcoin transactions in a permanent, verifiable way. It uses cryptography to ensure the integrity and security of each transaction. New transactions are grouped into blocks and added to the blockchain through a process called mining, where miners compete to solve complex math problems. In return for securing the network, miners are rewarded with new Bitcoins. This decentralized system allows for peer-to-peer transactions without an intermediary.
Blockchain technology is currently taking over the world with its amazing features. This presentation covers all you need to know about the basics of blockchain technology with beautiful animations
This document provides an overview of cryptocurrency including:
- Cryptocurrency is a decentralized digital currency that uses cryptography and a distributed ledger called blockchain to secure online transactions. The first cryptocurrency was Bitcoin, created in 2009.
- Blockchain underlies cryptocurrencies like Bitcoin - it is a public distributed ledger where transactions are recorded in chronological order in blocks that cannot be altered.
- Cryptocurrencies work through mining, where miners use computing power to validate transactions by solving complex math puzzles. Successful miners are rewarded with the cryptocurrency.
- Popular cryptocurrencies besides Bitcoin include Ethereum, Ripple, Litecoin, and Dash. Cryptocurrency is not yet clearly regulated in India but the government may launch
Cryptocurrencies like Bitcoin aim to enable digital cash transactions that are secure, private, and preserve users' anonymity. Bitcoin introduced a decentralized digital currency using cryptography and a peer-to-peer network to validate transactions without a central authority. It uses public key cryptography, digital signatures, and cryptographic hash functions to secure transactions and prevent double spending. While Bitcoin provides pseudonymity, all transactions are recorded on the public blockchain, compromising users' privacy. Zerocoin was developed to add an anonymous currency on top of Bitcoin using zero-knowledge proofs to allow users to exchange bitcoins for untraceable zerocoins and back without revealing their identities.
Bitcoin is a cryptocurrency that was created in 2009 as a decentralized digital currency not controlled by any central authority like a bank. It uses cryptography to secure transactions and generate new units of currency. Transactions are recorded on a public ledger called the blockchain. New bitcoins are "mined" by solving complex math problems, and the total number that can ever be created is limited to 21 million. While bitcoin offers advantages like instant transactions and anonymity, it also has risks like high volatility and the inability to recover funds if private keys are lost.
Bitcoin is a digital currency that allows for decentralized peer-to-peer transactions without a central authority. It was created in response to distrust of financial institutions and high transaction costs. Bitcoin uses public/private key cryptography and a distributed ledger called the blockchain to ensure transaction security and prevent double spending. New bitcoins are "mined" by solving complex math problems, rewarding miners with new coins. As more bitcoins enter circulation, the difficulty of mining increases.
Bitcoin is a digital currency that allows for decentralized peer-to-peer transactions without a central authority. It was created in response to distrust of financial institutions and high transaction costs. Bitcoin uses public/private key cryptography and a distributed ledger called the blockchain to ensure transaction security and prevent double spending. New bitcoins are "mined" by solving complex math problems, and miners are paid in bitcoin.
The document discusses cryptocurrency and blockchain technology. It begins by asking whether people like or dislike cryptocurrency. It then provides explanations of key concepts related to blockchain like how blockchain batches transactions into blocks and uses cryptography to securely link blocks together in a distributed ledger. It provides an analogy comparing transactions, blocks, and the blockchain to lines, chapters, and a book. It discusses why someone may want to reverse transactions and explains the process of mining blocks for verification and rewards. Finally, it summarizes some terms related to cryptocurrency and blockchain and asks if the reader understands.
14 Jan17- Nullmeets -Blockchain concept decoded by Ninad SarangNinad Sarang
Blockchain is a distributed public ledger that records all Bitcoin transactions in a permanent, verifiable way. It uses cryptography to ensure the integrity and security of each transaction. New transactions are grouped into blocks and added to the blockchain through a process called mining, where miners compete to solve complex math problems. In return for securing the network, miners are rewarded with new Bitcoins. This decentralized system allows for peer-to-peer transactions without an intermediary.
Blockchain technology is currently taking over the world with its amazing features. This presentation covers all you need to know about the basics of blockchain technology with beautiful animations
This document provides an overview of cryptocurrency including:
- Cryptocurrency is a decentralized digital currency that uses cryptography and a distributed ledger called blockchain to secure online transactions. The first cryptocurrency was Bitcoin, created in 2009.
- Blockchain underlies cryptocurrencies like Bitcoin - it is a public distributed ledger where transactions are recorded in chronological order in blocks that cannot be altered.
- Cryptocurrencies work through mining, where miners use computing power to validate transactions by solving complex math puzzles. Successful miners are rewarded with the cryptocurrency.
- Popular cryptocurrencies besides Bitcoin include Ethereum, Ripple, Litecoin, and Dash. Cryptocurrency is not yet clearly regulated in India but the government may launch
Bitcoin is a digital currency that allows for peer-to-peer transactions without an intermediary. The document discusses how bitcoin works, including how transactions are recorded in a public ledger called the blockchain and secured through cryptography. It also describes how bitcoin can be acquired, stored in digital wallets, and exchanged at bitcoin ATMs or exchanges. While bitcoin offers advantages like low fees and censorship resistance, it also faces challenges like volatility, lack of buyer protection, and limited acceptance.
Bitcoin is a proposed digital currency that allows for direct peer-to-peer transactions without third party involvement. It uses cryptography to control transactions and prevent double spending. Transactions are recorded in a public ledger called the blockchain that is maintained collaboratively by users on the network. New bitcoins are generated through a process called mining where users solve complex math problems to validate transactions and are rewarded with new bitcoins. The document discusses problems with traditional currency systems, how the bitcoin system works, privacy concerns, and concludes that bitcoin provides a way to conduct electronic transactions without relying on trust through its consensus mechanism.
This document provides an overview of cryptocurrencies and Bitcoin. It defines cryptocurrency and describes how Bitcoin works as a decentralized digital currency using cryptography to regulate currency generation and verify fund transfers without a central bank. Key aspects covered include currency vs Bitcoin, Bitcoin expansion, cryptography basics like hashing and digital signatures, blockchain data structures, mining and proof-of-work consensus, and incentives to maintain the Bitcoin network.
Presentation Titled " Bitcoin and Ransomware Analysis " we discuss ransomware and how bitcoin are being utlized in cyber crime. we also have look at Bitcoin mining, Bitcoin trading market and block chain concept.
In the presentation Titled " Bitcoin and Ransomware Analysis " we discuss ransomware and how bitcoin are being utlised in cyber crime. we also have look at Bitcoin mining, trading and block chain concept.
Bitcoin is a peer-to-peer electronic cash system that allows for secure, low-inflation transactions without a central authority. It uses public/private key cryptography and a distributed transaction ledger called a blockchain to prevent double spending. Nodes in the Bitcoin network compete to validate transactions by solving computationally difficult proof-of-work puzzles. The longest blockchain held by the majority of nodes represents the valid transaction history and prevents reversal of transactions.
Blockchain technology provides a peer-to-peer transaction system without a central intermediary by using a distributed ledger called a blockchain. The document discusses how traditional transactions rely on centralized parties like banks and payment processors to facilitate transactions and provide trust, whereas blockchain transactions use cryptographic techniques and distributed consensus to validate transactions without intermediaries. The blockchain grows over time as new blocks of transactions are added through a decentralized mining process, linking each new block to previous ones in an immutable chain. This allows for fast, global, low-cost transactions without centralized control.
Blockchain and cryptocurrency applications can be summarized in 3 sentences:
Blockchain is a distributed ledger technology that allows for the decentralized recording of transactions and smart contracts without a central authority. Bitcoin was the first cryptocurrency to use blockchain technology for tracking ownership and transfers of digital currency. Ethereum later introduced programmable smart contracts and decentralized applications to blockchain.
Bitcoin is a cryptocurrency that uses cryptography to control the creation of monetary units and verify transactions. It works by distributing a publicly available ledger of all transactions across a peer-to-peer network, achieving consensus on updates without the need for a central authority. Users can transfer coins electronically by digitally signing transactions with private keys.
Bitcoin is a digital currency that was created in 2008 to solve problems with traditional currency and payment systems. It uses blockchain technology and cryptography to allow peer-to-peer transactions without a central authority. Key goals of Bitcoin were to create a purely digital currency, enable direct payments between parties without intermediaries, and solve the double spending problem in a decentralized manner. The document provides an overview of Bitcoin's methodology using digital signatures, cryptographic hash functions, and proof-of-work to validate transactions and create new coins in a decentralized blockchain network.
Blockchain concept and technology. How this is becoming the next trend after the Bitcoin, expanding to a myriad of solutions. Smart contracts might be using a public distributed, and encrypted platform to support data persistence.
Blockchain is a distributed ledger technology that allows for the safe distribution of a ledger across multiple nodes. It works by having each transaction digitally signed and added in a "block" along with a proof of work. This prevents double spending and allows nodes to reach consensus on the transaction history without a centralized authority. Smart contracts enable decentralized applications to run transactions automatically according to the program. However, first generation blockchains face challenges around centralization, scalability, and smart contract quality. New solutions aim to address these through alternative consensus methods, off-chain transactions, and designed smart contract languages.
Can we safely adapt the construction of permissionless blockchain to user dem...I MT
1) The document discusses adapting permissionless blockchain construction to user demand by allowing the number of blocks and block creation rate in a blockchain to self-adapt to transaction demand.
2) It proposes a system called Sycomore that moves from a chain of blocks to a directed acyclic graph (DAG) of blocks where the predecessor of a block is not predictable.
3) Sycomore aims to partition transactions over blocks in a way that is verifiable by anyone and allows the blockchain to scale to thousands of transactions per second while maintaining security properties like preventing double spending.
Sunstone Capital, Avalanche 2014 - Bitcoin: Primer, State of Play, DiscussionYacine Ghalim
Every winter, Sunstone hosts an offsite event with the participation of executives from our portfolio companies, fellow VCs, and various thought leaders.
The event is designed to mix informal networking, stimulating discussions around key topics shaping our industry, and intense skiing. We find that the best inspiration and ideas are generated when you least expect it, and in company with people that challenge your thinking.
This year's edition took us to Courmayeur in the Italian Alps, and Bitcoin was on the list of topics we discussed. Here are the supporting slides from our Jan 24th presentation "Bitcoin: Primer, State of Play, Discussion".
http://www.sunstone.eu
This document provides an introduction and overview of blockchain technology. It discusses the history of blockchain from 1991 concepts of cryptographically secure blocks to the creation of Bitcoin in 2008. It describes how Bitcoin works through a transaction example. Key aspects of blockchain like decentralization, mining, smart contracts on Ethereum, and permissioned networks like Hyperledger are summarized. Several use cases for blockchain in areas like payments, supply chain, and healthcare are outlined.
Bitcoin 101 - Certified Bitcoin Professional Training SessionLisa Cheng
Bitcoin 101 provides an overview of bitcoin basics including that it is a peer-to-peer digital currency that allows for pseudo-anonymous value transfer through irreversible transactions recorded on a distributed blockchain ledger. It describes how bitcoin addresses and private keys work to send and receive bitcoin as well as exploring the bitcoin community, transactions, and units of bitcoin. It also summarizes different types of bitcoin wallets including desktop, mobile, online, hardware and paper wallets as well as key management, backups and importing/exporting between wallets.
Bitcoin is a cryptocurrency that uses blockchain technology to record transactions. Transactions are grouped into blocks and added to the blockchain through a process called proof-of-work that requires significant computing power. Miners who solve the proof-of-work puzzles and add blocks to the blockchain are rewarded with new bitcoins and transaction fees. The blockchain prevents double spending by ordering transactions and ensuring bitcoins cannot be spent twice. As more blocks are added, transactions are confirmed, though single transfers occur instantly. A maximum of 21 million bitcoins will ever be created through mining rewards.
Cryptocurrencies for Everyone (Dmytro Pershyn Technology Stream)IT Arena
The document provides an overview of cryptocurrencies and Bitcoin. It defines cryptocurrency as a digital currency that uses encryption techniques to regulate currency units and verify fund transfers outside of central bank control. Bitcoin is highlighted as the first decentralized digital currency, used for online payments and traded on exchanges. Key differences between traditional currencies and Bitcoin are outlined. The document then covers various technical elements that underpin cryptocurrencies like decentralization, distributed consensus, digital signatures, hash functions, and blockchain data structures. It provides examples of how cryptocurrency and Bitcoin systems work at a technical level.
Taking AI to the Next Level in Manufacturing.pdfssuserfac0301
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
Bitcoin is a digital currency that allows for peer-to-peer transactions without an intermediary. The document discusses how bitcoin works, including how transactions are recorded in a public ledger called the blockchain and secured through cryptography. It also describes how bitcoin can be acquired, stored in digital wallets, and exchanged at bitcoin ATMs or exchanges. While bitcoin offers advantages like low fees and censorship resistance, it also faces challenges like volatility, lack of buyer protection, and limited acceptance.
Bitcoin is a proposed digital currency that allows for direct peer-to-peer transactions without third party involvement. It uses cryptography to control transactions and prevent double spending. Transactions are recorded in a public ledger called the blockchain that is maintained collaboratively by users on the network. New bitcoins are generated through a process called mining where users solve complex math problems to validate transactions and are rewarded with new bitcoins. The document discusses problems with traditional currency systems, how the bitcoin system works, privacy concerns, and concludes that bitcoin provides a way to conduct electronic transactions without relying on trust through its consensus mechanism.
This document provides an overview of cryptocurrencies and Bitcoin. It defines cryptocurrency and describes how Bitcoin works as a decentralized digital currency using cryptography to regulate currency generation and verify fund transfers without a central bank. Key aspects covered include currency vs Bitcoin, Bitcoin expansion, cryptography basics like hashing and digital signatures, blockchain data structures, mining and proof-of-work consensus, and incentives to maintain the Bitcoin network.
Presentation Titled " Bitcoin and Ransomware Analysis " we discuss ransomware and how bitcoin are being utlized in cyber crime. we also have look at Bitcoin mining, Bitcoin trading market and block chain concept.
In the presentation Titled " Bitcoin and Ransomware Analysis " we discuss ransomware and how bitcoin are being utlised in cyber crime. we also have look at Bitcoin mining, trading and block chain concept.
Bitcoin is a peer-to-peer electronic cash system that allows for secure, low-inflation transactions without a central authority. It uses public/private key cryptography and a distributed transaction ledger called a blockchain to prevent double spending. Nodes in the Bitcoin network compete to validate transactions by solving computationally difficult proof-of-work puzzles. The longest blockchain held by the majority of nodes represents the valid transaction history and prevents reversal of transactions.
Blockchain technology provides a peer-to-peer transaction system without a central intermediary by using a distributed ledger called a blockchain. The document discusses how traditional transactions rely on centralized parties like banks and payment processors to facilitate transactions and provide trust, whereas blockchain transactions use cryptographic techniques and distributed consensus to validate transactions without intermediaries. The blockchain grows over time as new blocks of transactions are added through a decentralized mining process, linking each new block to previous ones in an immutable chain. This allows for fast, global, low-cost transactions without centralized control.
Blockchain and cryptocurrency applications can be summarized in 3 sentences:
Blockchain is a distributed ledger technology that allows for the decentralized recording of transactions and smart contracts without a central authority. Bitcoin was the first cryptocurrency to use blockchain technology for tracking ownership and transfers of digital currency. Ethereum later introduced programmable smart contracts and decentralized applications to blockchain.
Bitcoin is a cryptocurrency that uses cryptography to control the creation of monetary units and verify transactions. It works by distributing a publicly available ledger of all transactions across a peer-to-peer network, achieving consensus on updates without the need for a central authority. Users can transfer coins electronically by digitally signing transactions with private keys.
Bitcoin is a digital currency that was created in 2008 to solve problems with traditional currency and payment systems. It uses blockchain technology and cryptography to allow peer-to-peer transactions without a central authority. Key goals of Bitcoin were to create a purely digital currency, enable direct payments between parties without intermediaries, and solve the double spending problem in a decentralized manner. The document provides an overview of Bitcoin's methodology using digital signatures, cryptographic hash functions, and proof-of-work to validate transactions and create new coins in a decentralized blockchain network.
Blockchain concept and technology. How this is becoming the next trend after the Bitcoin, expanding to a myriad of solutions. Smart contracts might be using a public distributed, and encrypted platform to support data persistence.
Blockchain is a distributed ledger technology that allows for the safe distribution of a ledger across multiple nodes. It works by having each transaction digitally signed and added in a "block" along with a proof of work. This prevents double spending and allows nodes to reach consensus on the transaction history without a centralized authority. Smart contracts enable decentralized applications to run transactions automatically according to the program. However, first generation blockchains face challenges around centralization, scalability, and smart contract quality. New solutions aim to address these through alternative consensus methods, off-chain transactions, and designed smart contract languages.
Can we safely adapt the construction of permissionless blockchain to user dem...I MT
1) The document discusses adapting permissionless blockchain construction to user demand by allowing the number of blocks and block creation rate in a blockchain to self-adapt to transaction demand.
2) It proposes a system called Sycomore that moves from a chain of blocks to a directed acyclic graph (DAG) of blocks where the predecessor of a block is not predictable.
3) Sycomore aims to partition transactions over blocks in a way that is verifiable by anyone and allows the blockchain to scale to thousands of transactions per second while maintaining security properties like preventing double spending.
Sunstone Capital, Avalanche 2014 - Bitcoin: Primer, State of Play, DiscussionYacine Ghalim
Every winter, Sunstone hosts an offsite event with the participation of executives from our portfolio companies, fellow VCs, and various thought leaders.
The event is designed to mix informal networking, stimulating discussions around key topics shaping our industry, and intense skiing. We find that the best inspiration and ideas are generated when you least expect it, and in company with people that challenge your thinking.
This year's edition took us to Courmayeur in the Italian Alps, and Bitcoin was on the list of topics we discussed. Here are the supporting slides from our Jan 24th presentation "Bitcoin: Primer, State of Play, Discussion".
http://www.sunstone.eu
This document provides an introduction and overview of blockchain technology. It discusses the history of blockchain from 1991 concepts of cryptographically secure blocks to the creation of Bitcoin in 2008. It describes how Bitcoin works through a transaction example. Key aspects of blockchain like decentralization, mining, smart contracts on Ethereum, and permissioned networks like Hyperledger are summarized. Several use cases for blockchain in areas like payments, supply chain, and healthcare are outlined.
Bitcoin 101 - Certified Bitcoin Professional Training SessionLisa Cheng
Bitcoin 101 provides an overview of bitcoin basics including that it is a peer-to-peer digital currency that allows for pseudo-anonymous value transfer through irreversible transactions recorded on a distributed blockchain ledger. It describes how bitcoin addresses and private keys work to send and receive bitcoin as well as exploring the bitcoin community, transactions, and units of bitcoin. It also summarizes different types of bitcoin wallets including desktop, mobile, online, hardware and paper wallets as well as key management, backups and importing/exporting between wallets.
Bitcoin is a cryptocurrency that uses blockchain technology to record transactions. Transactions are grouped into blocks and added to the blockchain through a process called proof-of-work that requires significant computing power. Miners who solve the proof-of-work puzzles and add blocks to the blockchain are rewarded with new bitcoins and transaction fees. The blockchain prevents double spending by ordering transactions and ensuring bitcoins cannot be spent twice. As more blocks are added, transactions are confirmed, though single transfers occur instantly. A maximum of 21 million bitcoins will ever be created through mining rewards.
Cryptocurrencies for Everyone (Dmytro Pershyn Technology Stream)IT Arena
The document provides an overview of cryptocurrencies and Bitcoin. It defines cryptocurrency as a digital currency that uses encryption techniques to regulate currency units and verify fund transfers outside of central bank control. Bitcoin is highlighted as the first decentralized digital currency, used for online payments and traded on exchanges. Key differences between traditional currencies and Bitcoin are outlined. The document then covers various technical elements that underpin cryptocurrencies like decentralization, distributed consensus, digital signatures, hash functions, and blockchain data structures. It provides examples of how cryptocurrency and Bitcoin systems work at a technical level.
Taking AI to the Next Level in Manufacturing.pdfssuserfac0301
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-EfficiencyScyllaDB
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
Main news related to the CCS TSI 2023 (2023/1695)Jakub Marek
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Programming Foundation Models with DSPy - Meetup SlidesZilliz
Prompting language models is hard, while programming language models is easy. In this talk, I will discuss the state-of-the-art framework DSPy for programming foundation models with its powerful optimizers and runtime constraint system.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
This presentation provides valuable insights into effective cost-saving techniques on AWS. Learn how to optimize your AWS resources by rightsizing, increasing elasticity, picking the right storage class, and choosing the best pricing model. Additionally, discover essential governance mechanisms to ensure continuous cost efficiency. Whether you are new to AWS or an experienced user, this presentation provides clear and practical tips to help you reduce your cloud costs and get the most out of your budget.
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on integration of Salesforce with Bonterra Impact Management.
Interested in deploying an integration with Salesforce for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Best 20 SEO Techniques To Improve Website Visibility In SERPPixlogix Infotech
Boost your website's visibility with proven SEO techniques! Our latest blog dives into essential strategies to enhance your online presence, increase traffic, and rank higher on search engines. From keyword optimization to quality content creation, learn how to make your site stand out in the crowded digital landscape. Discover actionable tips and expert insights to elevate your SEO game.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...alexjohnson7307
Predictive maintenance is a proactive approach that anticipates equipment failures before they happen. At the forefront of this innovative strategy is Artificial Intelligence (AI), which brings unprecedented precision and efficiency. AI in predictive maintenance is transforming industries by reducing downtime, minimizing costs, and enhancing productivity.
JavaLand 2024: Application Development Green Masterplan
Blockchain and Bitcoin.pptx
1. Secure Digital Currency:
Bitcoin
Amir Houmansadr
CS660: Advanced Information Assurance
Spring 2015
Content may be borrowed from other resources.
See the last slide for acknowledgements!
2. Online Transactions
• Physical cash
– Non-traceable (well, mostly!)
– Secure (mostly)
– Low inflation
• Can’t be used online directly
Electronic credit or debit transactions
Bank sees all transactions
Merchants can track/profile customers
CS660 - Advanced Information Assurance -
UMassAmherst
2
4. E-Cash Crypto Protocols
Chaum82: blind signatures for e-cash
Chaum88: retroactive double spender identification
Brandis95: restricted blind signatures
Camenisch05: compact offline e-cash
• Various practical issues:
– Need for trusted central party
– Computationally expensive
– Etc.
CS660 - Advanced Information Assurance -
UMassAmherst
4
5. Bitcoin
• A distributed, decentralized digital currency
system
• Released by Satoshi Nakamoto 2008
• Effectively a bank run by an ad hoc network
– Digital checks
– A distributed transaction log
6. Size of the BitCoin Economy
• Number of BitCoins in circulation 11.8 million
(December 2013)
• Total number of BitCoins generated cannot
exceed 21 million
• Average price of a Bitcoin: around $300
Price has been unstable.
• Total balances held in BTC 1B$ compared with
1,200B$ circulating in USD.
• 30 Transactions per min. (Visa transaction
200,000 per minute.)
7. BitCoin: Challenges
• Creation of a virtual coin/note
– How is it created in the first place?
– How do you prevent inflation? (What prevents anyone from creating
lots of coins?)
• Validation
– Is the coin legit? (proof-of-work)
– How do you prevent a coin from double-spending?
• Buyer and Seller protection in online transactions
– Buyer pays, but the seller doesn’t deliver
– Seller delivers, buyer pays, but the buyer makes a claim.
• Trust on third-parties
– Rely on proof instead of trust
– Verifiable by everyone
– No central bank or clearing house
8. Security in Bitcoin
• Authentication
– Am I paying the right person? Not some other
impersonator?
• Integrity
– Is the coin double-spent?
– Can an attacker reverse or change transactions?
• Availability
– Can I make a transaction anytime I want?
• Confidentiality
– Are my transactions private? Anonymous?
9. Security in Bitcoin
• Authentication Public Key Crypto: Digital Signatures
– Am I paying the right person? Not some other
impersonator?
• Integrity Digital Signatures and Cryptographic Hash
– Is the coin double-spent?
– Can an attacker reverse or change transactions?
• Availability Broadcast messages to the P2P network
– Can I make a transaction anytime I want?
• Confidentiality Pseudonymity
– Are my transactions private? Anonymous?
11. Public Key Crypto: Digital Signature
• First, create a message digest using a cryptographic hash
• Then, encrypt the message digest with your private key
Authentication
Integrity
Non-repudiation
12. 12
Cryptographic Hash Functions
• Consistent: hash(X) always yields same
result
• One-way: given Y, hard to find X s.t. hash(X)
= Y
• Collision resistant: given hash(W) = Z,
hard to find X such that hash(X) = Z
Hash Fn
Message of arbitrary length
Fixed Size
Hash
13. Back to BitCoin
• Validation
– Is the coin legit? (proof-of-work) Use of
Cryptographic Hashes
– How do you prevent a coin from double-spending?
Broadcast to all nodes
• Creation of a virtual coin/note
– How is it created in the first place? Provide
incentives for miners
– How do you prevent inflation? (What prevents anyone
from creating lots of coins?) Limit the creation rate
of the BitCoins
14. Bitcoin
• Electronic coin == chain of digital signatures
• BitCoin transfer: Sign(Previous transaction + New owner’s public key)
• Anyone can verify (n-1)th owner transferred this to the nth owner.
• Anyone can follow the history
Given a BitCoin
16. Use of Cryptographic Hashes
Proof-of-work
Block contains transactions to be validated and previous hash value.
Pick a nouce such that H(prev hash, nounce, Tx) < E. E is a variable that
the system specifies. Basically, this amounts to finding a hash value
who’s leading bits are zero. The work required is exponential in the
number of zero bits required.
Verification is easy. But proof-of-work is hard.
17. Preventing Double-spending
• The only way is to be aware of all transactions.
• Each node (miner) verifies that this is the first
spending of the Bitcoin by the payer.
• Only when it is verified it generates the proof-
of-work and attach it to the current chain.
18. Bitcoin Network
• Each P2P node runs the following algorithm:
– New transactions are broadcast to all nodes.
– Each node (miners) collects new transactions into a block.
– Each node works on finding a proof-of-work for its block. (Hard
to do. Probabilistic. The one to finish early will probably win.)
– When a node finds a proof-of-work, it broadcasts the block to all
nodes.
– Nodes accept the block only if all transactions in it are valid
(digital signature checking) and not already spent (check all the
transactions).
– Nodes express their acceptance by working on creating the next
block in the chain, using the hash of the accepted block as the
previous hash.
19. Tie breaking
• Two nodes may find a correct block simultaneously.
– Keep both and work on the first one
– If one grows longer than the other, take the longer one
Two different
block chains (or
blocks) may
satisfy the
required proof-
of-work.
20. Reverting is Hard
• Reverting gets exponentially hard as the chain
grows.
1. Modify the transaction
(revert or change the payer)
2. Recompute
nonce
3. Recompute
the next nonce
21. Practical Limitation
• At least 10 mins to verify a transaction.
– Agree to pay
– Wait for one block (10 mins) for the transaction to
go through.
– But, for a large transaction ($$$) wait longer.
Because if you wait longer it becomes more
secure. For large $$$, you wait for six blocks (1
hour).
22. Optimizations
• Merkle Tree
– Only keep the root hash
• Delete the interior hash values to save disk
• Block header only contains the root hash
• Block header is about 80 bytes
• 80 bytes * 6 per/hr * 24 hrs * 365 = 4.2
MB/year
– Why keep use a Merkle tree?
23. Simplified payment verification
• Any user can verify a transaction easily by asking a node.
• First, get the longest proof-of-work chain
• Query the block that the transaction to be verified (tx3) is in.
• Only need Hash01 and Hash2 to verify; not the entire Tx’s.
24. BitCoin Economics
Rate limiting on the creation of a new block
Adapt to the “network’s capacity”
A block created every 10 mins (six blocks every hour)
How? Difficulty is adjusted every two weeks to keep the rate fixed
as capacity/computing power increases
N new Bitcoins per each new block: credited to the
miner incentives for miners
N was 50 initially. In 2013, N=25.
Halved every 210,000 blocks (every four years)
Thus, the total number of BitCoins will not exceed 21 million.
(After this miner takes a fee)
25. Privacy Implications
• No anonymity, only pseudonymity
• All transactions remain on the block chain–
indefinitely!
• Retroactive data mining
– Target used data mining on customer purchases to
identify pregnant women and target ads at them
(NYT 2012), ended up informing a woman’s father
that his teenage daughter was pregnant
– Imagine what credit card companies could do with the
data
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UMassAmherst
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26. Zerocoin
• A distributed approach to private electronic
cash
• Extends Bitcoin by adding an anonymous
currency on top of it
• Zerocoins are exchangeable for bitcoins
27. What is a zerocoin?
A zerocoin is:
Economically: a promissory note redeemable for a
bitcoin
Cryptographically: an opaque envelope containing
a serial number used to prevent double spending
823848273471012983
28. Commitments
• Allow you to commit to
and later reveal a value
• Binding: value cannot be
tampered with
• Blinding: value cannot be
read until revealed
812...
812..
29. Zerocoins: where do they come from?
• Anyone can make one
• Choose a random serial number and commit to it
• Mint a zerocoin by putting a mint transaction in the
block chain which “spends” a bitcoin and includes
the commitment
• Spending a zerocoin gives the recipient a bitcoin
30. Zerocoins: ...and where do they go?
• The “spent” bitcoins end up escrowed
• To spend a zerocoin
– You reveal the serial number
– Prove it is from some zerocoin in the block chain
– Put the spent serial number in the block chain
31. Zero-knowledge proofs
• Zero-knowledge [Goldwasser, Micali 1980s,
and beyond]
• Prove knowledge of a witness satisfying a
statement
• Specific variant: non-interactive proof of
knowledge
• Here we prove we know:
1.The serial number of a zerocoin
2.That the coin is in the block chain
32. Zero-knowledge proof
• Inefficient approach
– Identify all valid zerocoins in the block chain
(call them )
– Prove that S is the serial number of a coin C and
– This “OR” proof is O(N)
• Zerocoin uses cryptographic accumulators
– Sublinear
33. Zerocoin protocol
Generate a commitment to a random serial
number S:
(Store serial number S and randomness r)
Accumulate all valid coins, compute witness wi
Reveal S and prove knowledge of witness to
commitment accumulation and its randomness r
where is prime
34. Discussion
• The future of Bitcoin?
• Attacks on Zerocoin?
• Should we tradeoff privacy for usability? Is
privacy a main principle?
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UMassAmherst
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35. Acknowledgement
• Some of the slides, content, or pictures are borrowed from
the following resources, and some pictures are obtained
through Google search without being referenced below:
• L24-BitCoin and Security, many of the slides borrowed from
this presentation with modifications.
• Ian Miers, Zerocoin: Anonymous Distributed E-Cash from
Bitcoin, IEE S&P slides
•
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CS660 - Advanced Information Assurance -
UMassAmherst