Algorand blockchain basics, decentralized and for developers
•
0 likes•484 views
Algorand is a new blockchain built on a Permissionless, pure proof of stake, decentralized agreement protocol, where anyone can participate and requires minimal computational power. This protocol finalizes transactions very quickly and offers true decentralization. For developers the Algorand blockchain provides JavaScript, Java, Python and Go SDKs. Additionally REST endpoints are provided for interacting with the nodes and handling wallet functions. These REST endpoints are based on the OpenAPI Specification and can be used to build clients in any language. This session covers the basics of how the Algorand protocol works, cover the architecture overview, managing the node with the command line tools, and show developers how to integrate using the SDKs to build Layer 2 applications.
Recommended
More Related Content
What's hot
What's hot (20)
Similar to Algorand blockchain basics, decentralized and for developers
Similar to Algorand blockchain basics, decentralized and for developers (20)
More from Russ Fustino
More from Russ Fustino (8)
Recently uploaded
Recently uploaded (20)
Algorand blockchain basics, decentralized and for developers
- 1. russ@algorand.com Russ Fustino Technical Evangelist Algorand Algorand Blockchain Basics - Decentralized and for Developers
- 2. The documents and statements presented on (or directly accessible from) this presentation may contain forward-looking statements. These statements relate to future events or Algorand Network's future performance, financial or otherwise. Any statements that are not statements of historical fact (including without limitation statements to the effect that the Company or its management “believes”, “expects”, “anticipates”, “plans” (and similar expressions) should be considered forward looking statements. There are a number of important factors that could cause Algorand Network’s actual results and outcomes to differ materially from those indicated by the forward looking statements. The Algorand or any other party contained within disclaim any obligation to update any forward looking statement. Safe Harbor
- 4. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Get the goods!!! Hackathon: https://github.com/algorand-devrel SDKs: https://github.com/algorand 7
- 5. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Tamperproof Transparency Trust The Blockchain Promise Unlimited Applications
- 6. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Ransomware Attacks!!! • City of Baltimore and over 25 other cities! • $100,000 • What is worse then Ransomware Attack? • Ransomware Paid! by Palm Beach, FL • $600,000 11
- 7. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level What happens when you swipe your card at Starbucks? • Front-end processor • Acquiring bank • Card association • Issuing bank • Payment processor • Federal Reserve • Clearing House Payments Co 12
- 8. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Today’s Centralized Economies Are Broken 13 *Sources: McKinsey, Fundstrat, Bloomberg, PwC
- 9. Agenda § Blockchain Basics § What is Algorand? § Algorand’s Consensus Model § Algorand Foundation § TestNet § APIs, SDKs and Command Line tools § Planned Developer Features
- 11. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Problem: Databases FAIL to Work for Many Applications Central Authority decides: • Who has access • What types of data they can have • What is stored in it • What is deleted • What is archived Flaws: • Single point of failure • Deny or fail to provide access • Hard to access globally • Hard to maintain and manage data replication across multiple databases 16
- 12. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Wanted: Distributed, Secure, and Efficient Ledger! 17
- 13. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level 18 Data Block Data Block ⋯ Data Block 𝑘+1 Blockchain A sequence of data organized in blocks (1) Writable by All (2) Readable by All (3) Tamperproof for All
- 14. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Blockchain Properties ü Global instant access 19 ü Absolute trust and accountability ü Tamperproof append only log ü Cheap to transact and share information ü Virtually impossible to break the system!
- 15. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Blockchain is Good for 20 ü Notarization and Storage ü Ordering of information ü Disintermediation ü Payments and cryptocurrencies ü Supply chains
- 16. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Applications 21 ü Payments ü Voting ü Self-driving cars and IoT communication ü Digitization and tracking of assets and records (e.g., car titles, birth records, degrees) ü Health care record keeping ü Waste management tracking systems ü Authorization of identities ü Multi-party transactions ü Cross-organization transactions ü Billing
- 17. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Applications Domains 22 ü Health care ü Real-estate ü Communication ü Government records
- 19. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Borderless… Commerce Transactions Exchange Opportunity Applications Development Finance Currency EconomyMoney Governance Investment Participation Trade Markets Customers Technology Innovation Contracts
- 20. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Algorand Alternative Blockchain Developed from First Principles Enabling Continuous Progress Smart Science and Proven Leadership Broad-based Global Investment Group Cryptography pioneer, Turing award-winner, MIT professor Leading Scientific and Industry Advisors
- 21. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Algorand Pure Proof of Stake 0.001 algo per transaction ~= 5 second block confirmation 1000 transactions/second Scales to billions of users
- 23. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Algorand Pure Proof of Stake Simplified Smart Contracts Network-Wide Incentives Seamless Upgrades Scalable & Secure 𝐵$ 𝐵% 𝐵& 𝐵' 𝐵( … Effortless One-By-One Byzantine Agreement Forks? Proof of Work?
- 24. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Pure Proof of Stake Consensus ü Public and permissionless ü All users can participate in consensus ü Blocks are confirmed by voting ü Every token carries the same voting power ü No need to delegate or bond ü Minimal compute required
- 25. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Key Idea 1) Sample a small committee at random from the set of all users 2) The committee agrees on a block of transactions. Every member verifies transactions and digitally signs it. 𝐵$ 𝐵% 𝐵& 𝐵' 𝐵( 3) The block is added to the chain 𝐵(𝐵)𝐵)
- 26. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Algorand Consensus Overview
- 27. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Learn More about Algorand Technology ü Byzantine Agreement Protocol ü Random Sampling using Verifiable Random Function: Introduced by Micali (founder of Algorand), Rabin, and Vadhan in ’99
- 29. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Algorand Foundation Rewards § See Foundation site https://algorand.foundation/token-dynamics § All users online and offline are eligible to earn rewards
- 30. Algorand TestNet
- 31. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level TestNet Rocks!
- 32. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level TestNet Node Map
- 33. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level TestNet AlgoExplorer 67
- 34. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Install your node! Install new node • Log into https://developer.algorand.org/ • https://developer.algorand.org/docs/introduction-installing-node 68
- 36. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Wallets and Accounts - Logical Overview wallet Account Private Key Address/Public Key Derived Mnemonic Spending Account Account Im port/Export Stand Alone SDK/Algokey Generated Mobile Apps/AirGapped or non KMD Managed Wallets WalletID Wallet Name Wallet Mnemonic Wallet Driver Managed By KMD process on Node
- 37. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Multi-Sig accounts Multi-Sig Account Address2 (PK2) Address1 (PK1) Address3 (PK3) Threshold Level Address(Hash of PKs)
- 38. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Participation Keys- Logical Overview Account VRF Key using in VRF function Voting Keys are generated for round range Participation Keys are used for participating in consensus and associated to spending keys Spending keys used for creating and issuing signed transactions Algorand Participation Node Participation Key Set VRF Key Voting Keys Generate Parkeys Goal/Algokey Take Online Transaction Can be Signed on or offline Associates Keys to Account
- 39. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Algorand Processes kmd algod Node 1 2 1. KMD handles all interaction with spending keys, including signing transactions. Signing can be stand alone as well. 2. Algod is responsible for processing the protocol and interacting with SQLite to record the ledger. Implements REST API for read only APIs.
- 40. APIs and Command Line Tools
- 41. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Goal goal clerk account addpartkey balance changeonlinestatus importrootkey list new multisig rename send multisig rawsend ledger supply logging disable enable send network create delete restart start status stop node clone generatetoken lastround restart start status stop version Wallet KMD list new start stop delete listpartkeys rewards pendingtxns export import partkeyinfo renewallpartkeys renewpartkey
- 42. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Private Network Private Networks are primarily for developers to learn from locally.
- 43. SDKs and Swagger
- 44. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Swagger.Json
- 45. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level How do you download the swagger files? There are two swagger definition json files, one for Algod and one for KMD For Alogd use this: http://localhost:8080/swagger.json curl http://$(cat ~/node/data/algod.net)/swagger.json > swagger.json For kmd use this: http://localhost:7833/swagger.json curl http://$(cat ~/node/data/kmd-v0.5/kmd.net)/swagger.json > swaggerkmd.json 81
- 46. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Generating Clients
- 47. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level SDK Functionality 83 kmd Wrapper algod Wrapper Stand-alone functions Create accounts Account Mnemonic Create Transaction kmd algod Sign Transaction Air Gapped Applications Networked Applications
- 48. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level SDK Documentation at Developer.Algorand.org 84
- 49. Demos JS, Go, and Java SDK’s Algorand TestNet Dispenser REST API goal Algoexplorer.io Resources 85
- 50. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level ENTER TO WIN YUBIKEY and Thule 32L Backpack TODAY IN THIS SESSION! https://www.algorand.com/developer-entry 86 WIFI info:
- 51. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Get the goods Hackathon: https://github.com/algorand-devrel SDKs: https://github.com/algorand PowerPoint: https://bit.ly/2S8fliP 87
- 52. Coming Features
- 53. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Near Term Projects § Vault - Solve blockchain storage issues § Pixel – Address size and bandwidth of multi-signature requirements § Self Validating Transactions – Address balance time constraint § Atomic Swaps – Crosschain and multi-asset swaps in single transactions § Post-and-Sale Trades – Get buyers and sellers together quickly § Smart² contracts, quantum-resiliency Source: https://algorand.foundation/roadmap
- 54. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Become An Algorand Ambassador • Work directly with the Algorand team and learn from the best in the field • Host your own hackathon or developer meetup to help others in your community build on top of Algorand • Connect with other developers from all over the world who are also building on Algorand • Get the latest news and updates about our platform before anyone else hears about it 90 è Visit community.algorand.org
- 55. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Summary • Algorand Has Launched! https://twitter.com/Algorand/status/1141368150467993601 92 § What is Algorand? § Algorand’s Consensus Model § Algorand Foundation § TestNet § Process Architecture § APIs, SDKs and Command Line tools § Planned Developer Features
- 56. • Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level Sign up Today! 93
- 57. Questions?