What is the promise of smart contracts? How is their development different from software engineering? What practices should one adopt if becoming a smart contracts engineer?
Learn the basics of Blockchain technology here. Blockchain is the new disruptive technology around. These slides were used for the session hosted by GTech µLearn with Travancore Analytics.
What is the promise of smart contracts? How is their development different from software engineering? What practices should one adopt if becoming a smart contracts engineer?
Learn the basics of Blockchain technology here. Blockchain is the new disruptive technology around. These slides were used for the session hosted by GTech µLearn with Travancore Analytics.
An technical overview of Ethereum that provides a full picture starting from the original problem of building a distributed ledger and mining up to smart contracts.
Please note that there are no llamas in this presentation.
Smart Contracts Nothing but Decentralised Workflows?Fabian Hinsenkamp
Blockchain platforms, such as Ethereum, don't rely on a central authority to allow a set of actors to maintain a ledger
of transactions. Additionally it is possible to deploy scripts, called
smart contracts, which get executed whenever certain transactions occur. This talk, initially hold on the
2th Oktober 2018 @camunda in Berlin, explores if smart contracts could be used as basic building blocks for executing collaborative business processes between mutually untrusting parties.
A broad-ranging introduction into Blockchain, the Mental Models to use to think about its implications (Blockchain as a Database, as a City and as a Continent); and a technical introduction into the key ingredients to build a blockchain as well as dApps.
Blockchain, cryptography and tokens — NYC Bar presentationPaperchain
Concise version of presentation delivered at the NYC Bar Association.
Overview of blockchains, how cryptography works on blockchains and the difference between cryptocurrencies and tokens.
Blockchain 101, Enabler of Cryptocurrencies - v1.0en (2021/03) Young Suk Ahn Park
Introduction to Blockchain.
Describes what blockchain is, how it works, how it guarantees trust.
Introduces to to different use cases and how blockchain can enable the new economies based on trust.
An technical overview of Ethereum that provides a full picture starting from the original problem of building a distributed ledger and mining up to smart contracts.
Please note that there are no llamas in this presentation.
Smart Contracts Nothing but Decentralised Workflows?Fabian Hinsenkamp
Blockchain platforms, such as Ethereum, don't rely on a central authority to allow a set of actors to maintain a ledger
of transactions. Additionally it is possible to deploy scripts, called
smart contracts, which get executed whenever certain transactions occur. This talk, initially hold on the
2th Oktober 2018 @camunda in Berlin, explores if smart contracts could be used as basic building blocks for executing collaborative business processes between mutually untrusting parties.
A broad-ranging introduction into Blockchain, the Mental Models to use to think about its implications (Blockchain as a Database, as a City and as a Continent); and a technical introduction into the key ingredients to build a blockchain as well as dApps.
Blockchain, cryptography and tokens — NYC Bar presentationPaperchain
Concise version of presentation delivered at the NYC Bar Association.
Overview of blockchains, how cryptography works on blockchains and the difference between cryptocurrencies and tokens.
Blockchain 101, Enabler of Cryptocurrencies - v1.0en (2021/03) Young Suk Ahn Park
Introduction to Blockchain.
Describes what blockchain is, how it works, how it guarantees trust.
Introduces to to different use cases and how blockchain can enable the new economies based on trust.
Kristof V. explained the basics of blockchain and smart contracts. Starting with the mechanics of bitcoin (introduced by the 2009 paper of Satoshi Nakamoto) he explains concepts of pseudonymisation, encryption, blockchain, mining, and distribution. After skimming high-level through some use cases he moves to "(smart) contracts", using the example of an auction.
Link to examples of "smart contracts": https://dapps.ethercasts.com
Link to the event follow-up page: https://www.meetup.com/Brussels-Legal-Hackers/messages/boards/thread/50920056
Legal hackers: https://www.meetup.com/Brussels-Legal-Hackers
I spent quite some time to digest how Blockchain works and how it can influence our everyday life in the upcoming decades. My slides focus on that from a non-IT expert point view.
I spent quite some time to digest how Blockchain works and how it can influence our everyday life in the upcoming decades. My slides focus on that from a non-IT expert point of view.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Gen AI Study Jams _ For the GDSC Leads in India.pdf
SHA-3 and Blockchain Security
1. Presenter: S a dja d Ta l akoo b
Email: s a dja d_talako ob97@cmps2.iust. a c.ir
N e twork S e curity by D r A k ba ri
D e c e m b e r - 2 0 1 9
Let’s Talk About Hash
2. What We Offer
0001
Crypto Hash Function
0010
Brief History
0011
Blockchain
0100
cryptocurrency
0101
Security in BC
0110
Hash in BC
0111
One more thing
1000
Conclusion
B.
1/20
3. Introduction
We Have Lots of Hash Fucntions - In compiler,web,Password,Spell checkers,Database,etc
We need only who related to Cryptography
2/20
4. Cryptographic Hash Function Properties
Quick
Computation
Should return the hash
output quickly
Avalanche
Effect
Small change in the
input, change the whole
output.
Determinestic
Always get the same
result with same data
Pre-Image
Resistance
Infeasible to determine
input data based on the
output hash.
3/20
5. Cryptographic Hash Function Properties
Collision Resistant
Each input has its own
unique hash.
Puzzle Friendly
Must be infeasible to find the
input from output and known
key
4/20
6. The collision
resistance is
effectively broken
Output size is limited,
vulnerable to length
extension attacks
Arbitrary length output,Sponge
Construction
The Brief History
SHA1
SHA2
KECCAK / SHA3
5/20
11. Cryptocurrency
• Cryptography has been a key technology in the financial
world for decades
• Bitcoin started in 2009
• Exploit advanced cryptographic techniques
• Today cryptography mostly secures point-to-point
interactions
10/20
16. One more thing
Merkle Tree
• Used in Cryptography and
computer science.
• Also called Hash tree.
• Every leaf node is labelled
with data block
• Every non-leaf node is
labelled with the
cryptographic hash of its
child node(s).
15/20
17. Ethereum – hash function
• Using the same
underlying
algorithm that
used in SHA-3.
• KECCAK-256
hash function-
FIPS202.
16/20
18. • Brief informations about Hash Fucntions.
• Why and How we use it in blockchain?
• Some new structures.
• Ehash from Ethereum
Conclusion
17/20
19. • Hahsing Data Structures-Ananda Gunawardena-2015.
• Security Aspects of Blockchain -ITU Workshop -2017.
• Farfalle: parallel permutation-based cryptography-Guido Bertoni Et al.-2018.
• Xoodoo cookbook-Joan Daemen Et al.-2018.
• Xoodyak, a lightweight cryptographic scheme- Joan Daemen Et al.-2018.
Some of My Resources
18/20
21. Any Question?
20/20
Presenter: S a dja d Ta l akoo b
Email: s a dja d_talako ob97@cmps2.iust. a c.ir
N e twork S e c urity by D r A k ba ri
D e c e m b e r - 2 0 1 9
این مکانیسم از جایگشتهای تصادفی برای جذب و خروج دادهها استفاده میکند و به عنوان منبعی تصادفی برای ورودیهای بعدی که وارد الگوریتم هشینگ میشوند هم فعالیت دارد
The blockchain is a distributed ledger platform withhigh Byzantine fault tolerance, which enables achieving consensus in a large decentralized network of parties who do not trust each other.
A paramount featureof blockchains is the accountability and transparency oftransactions, which makes it attractive for a variety ofapplications ranging from smart contracts and financeto manufacturing and healthcare
While promising for a wide range of applications, current blockchain platforms rely ondigital signatures, which are vulnerable to attacks by means of quantum computers.
One of the most prominent applications of blockchains is cryptocurrencies, such as Bitcoin .
The same, albeit to a lesser extent, applies to cryptographic hash functions that are used in preparing new blocks, so parties with access to quantum computation would have unfair advantage in procuring mining rewards.
‣ Many of these need advanced cryptographic protocols