-
Notifications
You must be signed in to change notification settings - Fork 14
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
25e9497
commit d6695e1
Showing
1 changed file
with
65 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| # Blockchain Technology | ||
| - Definition: A decentralized digital ledger that records transactions across many computers so that the record cannot be altered retroactively. | ||
| ### Principles: | ||
| - Decentralization: No single entity controls the network. | ||
| - Transparency: Transactions are visible to all participants. | ||
| - Immutability: Once recorded, transactions cannot be changed. | ||
| ### Use Cases: Cryptocurrencies, supply chain management, smart contracts. | ||
| # NFTs (Non-Fungible Tokens) | ||
| - Definition: Unique digital assets that represent ownership of a specific item or piece of content, often on a blockchain like Ethereum. | ||
| ### Implementation in Mobile Apps: | ||
| - Wallet Integration: Apps may allow users to store and manage NFTs. | ||
| - Marketplaces: Mobile platforms where users can buy, sell, or trade NFTs. | ||
| - Display: Showing NFTs in a user-friendly interface. | ||
| - Applications: Digital art, gaming items, collectibles. | ||
| # Cryptographic Principles | ||
| ### Basic Concepts: | ||
| - Hashing: Converts data into a fixed-length string, crucial for blockchain immutability. | ||
| - Public/Private Key Cryptography: Used for secure transactions and identity verification. | ||
| - Encryption: Protects data by converting it into a secure format. | ||
| ### Secure Coding Practices: | ||
| - Input Validation: Prevents attacks such as SQL injection. | ||
| - Data Encryption: Protects sensitive information. | ||
| - Use of Libraries: Utilizing established cryptographic libraries to avoid common pitfalls. | ||
| ### Cloud Services and Blockchain APIs | ||
| - Cloud Services: Providers like AWS, Azure, and Google Cloud offer blockchain as a service (BaaS), facilitating easy setup of blockchain networks. | ||
| ## Blockchain APIs: | ||
| - Interaction: Enable apps to interact with blockchain networks (e.g., retrieving transaction data). | ||
| - Smart Contracts: APIs may allow deployment and management of smart contracts. | ||
| - Examples: Infura (Ethereum), Alchemy, and Moralis. | ||
|
|
||
| # Blockchain Technology | ||
| ### Definition | ||
| - Blockchain is a distributed ledger technology that enables secure, transparent, and tamper-proof recording of transactions across a network of computers. | ||
|
|
||
| ### Key Components | ||
| - Blocks: Each block contains a list of transactions. Once filled, it’s linked to the previous block, forming a chain. | ||
| - Nodes: Computers that participate in the network, maintaining copies of the blockchain. | ||
| - Consensus Mechanisms: Methods to agree on the validity of transactions (e.g., Proof of Work, Proof of Stake). | ||
| ### How It Works | ||
| - Transaction Initiation: A user initiates a transaction, which is then broadcast to the network. | ||
| - Validation: Nodes validate the transaction using a consensus mechanism. | ||
| - Block Creation: Valid transactions are grouped into a block. | ||
| - Linking: The new block is linked to the previous one through cryptographic hashing, ensuring immutability. | ||
| - Update: The updated blockchain is shared across all nodes. | ||
| ### Characteristics | ||
| - Decentralization: No central authority; decisions are made collectively by participants. | ||
| - Transparency: Transactions are visible to all participants, promoting trust. | ||
| - Immutability: Once recorded, transactions cannot be altered, ensuring data integrity. | ||
| - Security: Cryptographic techniques safeguard the data. | ||
| ### Types of Blockchains | ||
| - Public Blockchains: Open to anyone (e.g., Bitcoin, Ethereum). Fully decentralized and transparent. | ||
| - Private Blockchains: Restricted access, controlled by a single organization (e.g., Hyperledger). Used in enterprise settings. | ||
| - Consortium Blockchains: Controlled by a group of organizations, balancing transparency and privacy. | ||
| ### Use Cases | ||
| - Cryptocurrencies: Digital currencies like Bitcoin and Ethereum operate on blockchain. | ||
| - Supply Chain Management: Enhances traceability and transparency of goods in transit. | ||
| - Smart Contracts: Self-executing contracts with the terms of the agreement directly written into code. | ||
| - Voting Systems: Ensures secure, transparent, and verifiable elections. | ||
| - Healthcare: Secures patient records, enabling data sharing while maintaining privacy. | ||
| ### Challenges | ||
| - Scalability: Handling a large number of transactions can be slow and resource-intensive. | ||
| - Energy Consumption: Particularly with consensus mechanisms like Proof of Work. | ||
| - Regulatory Uncertainty: Evolving legal frameworks and compliance issues. | ||
| ### Conclusion | ||
| - Blockchain technology has the potential to revolutionize various industries by providing a secure, transparent, and decentralized way to record transactions. Its applications range from financial services to supply chain management, offering new ways to enhance trust and efficiency. |