├── README.md ├── Modulo 2 - Crear una Criptomoneda ├── transaction.json ├── nodes.json ├── jbcoin.py ├── jbcoin_node_5002.py ├── jbcoin_node_5003.py └── jbcoin_node_5001.py ├── Modulo 3 - Crear un Contrato Inteligente ├── etherwallet-v3.11.2.4 │ ├── fonts │ │ ├── Lato-Bold.woff │ │ ├── Lato-Light.woff │ │ └── Lato-Regular.woff │ ├── images │ │ ├── notes-bg.png │ │ ├── fav │ │ │ ├── favicon.ico │ │ │ ├── favicon-16x16.png │ │ │ ├── favicon-32x32.png │ │ │ ├── mstile-150x150.png │ │ │ ├── apple-touch-icon.png │ │ │ ├── android-chrome-192x192.png │ │ │ ├── android-chrome-512x512.png │ │ │ ├── browserconfig.xml │ │ │ ├── manifest.json │ │ │ └── safari-pinned-tab.svg │ │ ├── icons │ │ │ ├── icon128.png │ │ │ ├── icon16.png │ │ │ ├── icon192.png │ │ │ └── icon32.png │ │ ├── print-sidebar.png │ │ ├── logo-ethereum-1.png │ │ ├── logo-ethereum-2.png │ │ ├── myetherwallet-logo.png │ │ ├── myetherwallet-banner-fun.jpg │ │ ├── myetherwallet-logo-banner.png │ │ ├── myetherwallet-logo-square.png │ │ ├── icon-check.svg │ │ ├── icon-check-green.svg │ │ ├── icon-edit.svg │ │ ├── icon-remove.svg │ │ ├── icon-x.svg │ │ ├── icon-x-orange.svg │ │ ├── icon-remove-red.svg │ │ ├── icon-load-tokens.svg │ │ ├── icon-help.svg │ │ ├── icon-help-2.svg │ │ ├── icon-help-3.svg │ │ ├── icon-external-link.svg │ │ ├── icon-view.svg │ │ ├── icon-eye-closed.svg │ │ ├── onboarding_icon-04.svg │ │ ├── logo-trezor.svg │ │ ├── logo-bity-white.svg │ │ ├── logo-bity.svg │ │ ├── icon-eye.svg │ │ ├── logo-coinbase.svg │ │ ├── logo-ledger.svg │ │ ├── icon-protip.svg │ │ ├── onboarding_icon-06.svg │ │ ├── onboarding_icon-09.svg │ │ ├── onboarding_icon-10.svg │ │ ├── onboarding_icon-07.svg │ │ ├── logo-myetherwallet.svg │ │ ├── logo-myetherwallet.min.svg │ │ ├── onboarding_icon-05.svg │ │ ├── onboarding_icon-02.svg │ │ ├── onboarding_icon-03.svg │ │ ├── logo-myetherwalletcx.svg │ │ ├── shapeshift-dark.svg │ │ ├── icon-arrow-left.svg │ │ ├── icon-arrow-right.svg │ │ ├── logo-shapeshift.svg │ │ ├── onboarding_icon-08.svg │ │ └── onboarding_icon-01.svg │ ├── bin │ │ └── startMEW.js │ ├── package.json │ ├── manifest.json │ └── signmsg.html └── jbcoin_ico.sol ├── .gitignore └── Modulo 1 - Crear una Cadena de Bloques └── blockchain.py /README.md: -------------------------------------------------------------------------------- 1 | # blockchain-a-z -------------------------------------------------------------------------------- /Modulo 2 - Crear una Criptomoneda/transaction.json: -------------------------------------------------------------------------------- 1 | { 2 | "sender" : "", 3 | "receiver" : "", 4 | "amount" : 5 | } -------------------------------------------------------------------------------- /Modulo 2 - Crear una Criptomoneda/nodes.json: -------------------------------------------------------------------------------- 1 | { 2 | "nodes" : ["http://127.0.0.1:5001", 3 | "http://127.0.0.1:5002", 4 | "http://127.0.0.1:5003"] 5 | } -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/fonts/Lato-Bold.woff: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joanby/blockchain-a-z/HEAD/Modulo 3 - 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Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/myetherwallet-logo-banner.png -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/myetherwallet-logo-square.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/joanby/blockchain-a-z/HEAD/Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/myetherwallet-logo-square.png -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/bin/startMEW.js: -------------------------------------------------------------------------------- 1 | #! /usr/bin/env node 2 | 3 | var open = require("open"); 4 | var seperator = process.platform=="win32" ? "\\" : "/"; 5 | open(require('path').dirname(require.main.filename)+seperator+".."+seperator+"index.html"); 6 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/fav/browserconfig.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | #1d6986 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-check.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-check-green.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "MyEtherWallet", 3 | "version": "3.11.2.4", 4 | "description": "An NPM dist of MyEtherWallet. For easier downloading & updating via CLI.", 5 | "author": "MyEtherWallet", 6 | "license": "ISC", 7 | "devDependencies": { 8 | "open": "0.0.5" 9 | }, 10 | "bin": { 11 | "mew": "bin/startMEW.js" 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-edit.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-remove.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/fav/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "MyEtherWallet", 3 | "icons": [ 4 | { 5 | "src": "/images/fav/android-chrome-192x192.png", 6 | "sizes": "192x192", 7 | "type": "image/png" 8 | }, 9 | { 10 | "src": "/images/fav/android-chrome-512x512.png", 11 | "sizes": "512x512", 12 | "type": "image/png" 13 | } 14 | ], 15 | "theme_color": "#1d6986", 16 | "background_color": "#1d6986", 17 | "display": "standalone" 18 | } -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-x.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-x-orange.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-remove-red.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-load-tokens.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "MyEtherWallet", 3 | "version": "3.11.2.4", 4 | "manifest_version": 2, 5 | "description": "MyEtherWallet Chrome Extension", 6 | "homepage_url": "https://www.myetherwallet.com/", 7 | "icons": { 8 | "16": "images/icons/icon16.png", 9 | "32": "images/icons/icon32.png", 10 | "192": "images/icons/icon192.png" 11 | }, 12 | "options_page": "cx-wallet.html", 13 | "browser_action": { 14 | "default_icon": "images/icons/icon32.png", 15 | "default_title": "MyEtherWallet CX", 16 | "default_popup": "browser_action/browser_action.html" 17 | }, 18 | "permissions": [ 19 | "storage" 20 | ], 21 | "content_security_policy": "script-src 'self' 'unsafe-eval' 'sha256-uxI0oLy+6OpnvTApEkmCzuxkvu4J47b6yHCV93fjHN0=' 'sha256-0Gsidap6748RQlB69d8CLcBCD2A1kL9luXuhxAKpgXQ=' 'sha256-Z7zS8qcr4BZTeVyPP1sIfzQLoVSrzOW0qLHyZCds1WE='; object-src 'self'" 22 | } 23 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-help.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-help-2.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-help-3.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/fav/safari-pinned-tab.svg: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-external-link.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-view.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-eye-closed.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-04.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-trezor.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-bity-white.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-bity.svg: -------------------------------------------------------------------------------- 1 | Bity Logo 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/jbcoin_ico.sol: -------------------------------------------------------------------------------- 1 | // Jbcoins ICO 2 | 3 | // Versión del Compilador 4 | pragma solidity ^0.4.26; 5 | 6 | contract jbcoin_ico { 7 | 8 | //Número máximo de JBcoins disponibles para venta 9 | uint public max_jbcoins = 1000000; 10 | 11 | //Conversion Rate entre USD y JBcoins 12 | uint public usd_to_jbcoins = 1000; 13 | 14 | //Número total de JBcoins compradas por inversores 15 | uint public total_jbcoins_bought = 0; 16 | 17 | //Mapping que dada la dirección del inversor, devuelve su equite tanto en JBcoins como en USD 18 | mapping(address => uint) equity_jbcoins; 19 | mapping(address => uint) equity_usd; 20 | 21 | //Comprobar si un Inversor puede comprar JBcoins 22 | modifier can_buy_jbcoins(uint usd_invested) { 23 | require (usd_invested * usd_to_jbcoins + total_jbcoins_bought <= max_jbcoins); 24 | _; 25 | } 26 | 27 | //Obtener el balance de JBcoins de un Inversor 28 | function equity_in_jbcoins(address investor) external constant returns (uint){ 29 | return equity_jbcoins[investor]; 30 | } 31 | 32 | //Obtener el balance de USD de un Inversor 33 | function equity_in_usd(address investor) external constant returns (uint){ 34 | return equity_usd[investor]; 35 | } 36 | 37 | //Comprar JBcoins 38 | function buy_jbcoins(address investor, uint usd_invested) external 39 | can_buy_jbcoins(usd_invested) { 40 | uint jbcoins_bought = usd_invested * usd_to_jbcoins; 41 | equity_jbcoins[investor] += jbcoins_bought; 42 | equity_usd[investor] = equity_jbcoins[investor] / usd_to_jbcoins; 43 | total_jbcoins_bought += jbcoins_bought; 44 | } 45 | 46 | //Vender JBcoins 47 | function sell_jbcoins(address investor, uint jbcoins_sold) external { 48 | equity_jbcoins[investor] -= jbcoins_sold; 49 | equity_usd[investor] = equity_jbcoins[investor] / usd_to_jbcoins; 50 | total_jbcoins_bought -= jbcoins_sold; 51 | } 52 | 53 | } -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-eye.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | pip-wheel-metadata/ 24 | share/python-wheels/ 25 | *.egg-info/ 26 | .installed.cfg 27 | *.egg 28 | MANIFEST 29 | 30 | # PyInstaller 31 | # Usually these files are written by a python script from a template 32 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 33 | *.manifest 34 | *.spec 35 | 36 | # Installer logs 37 | pip-log.txt 38 | pip-delete-this-directory.txt 39 | 40 | # Unit test / coverage reports 41 | htmlcov/ 42 | .tox/ 43 | .nox/ 44 | .coverage 45 | .coverage.* 46 | .cache 47 | nosetests.xml 48 | coverage.xml 49 | *.cover 50 | *.py,cover 51 | .hypothesis/ 52 | .pytest_cache/ 53 | 54 | # Translations 55 | *.mo 56 | *.pot 57 | 58 | # Django stuff: 59 | *.log 60 | local_settings.py 61 | db.sqlite3 62 | db.sqlite3-journal 63 | 64 | # Flask stuff: 65 | instance/ 66 | .webassets-cache 67 | 68 | # Scrapy stuff: 69 | .scrapy 70 | 71 | # Sphinx documentation 72 | docs/_build/ 73 | 74 | # PyBuilder 75 | target/ 76 | 77 | # Jupyter Notebook 78 | .ipynb_checkpoints 79 | 80 | # IPython 81 | profile_default/ 82 | ipython_config.py 83 | 84 | # pyenv 85 | .python-version 86 | 87 | # pipenv 88 | # According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. 89 | # However, in case of collaboration, if having platform-specific dependencies or dependencies 90 | # having no cross-platform support, pipenv may install dependencies that don't work, or not 91 | # install all needed dependencies. 92 | #Pipfile.lock 93 | 94 | # PEP 582; used by e.g. github.com/David-OConnor/pyflow 95 | __pypackages__/ 96 | 97 | # Celery stuff 98 | celerybeat-schedule 99 | celerybeat.pid 100 | 101 | # SageMath parsed files 102 | *.sage.py 103 | 104 | # Environments 105 | .env 106 | .venv 107 | env/ 108 | venv/ 109 | ENV/ 110 | env.bak/ 111 | venv.bak/ 112 | 113 | # Spyder project settings 114 | .spyderproject 115 | .spyproject 116 | 117 | # Rope project settings 118 | .ropeproject 119 | 120 | # mkdocs documentation 121 | /site 122 | 123 | # mypy 124 | .mypy_cache/ 125 | .dmypy.json 126 | dmypy.json 127 | 128 | # Pyre type checker 129 | .pyre/ 130 | .DS_Store 131 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-coinbase.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-ledger.svg: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/icon-protip.svg: -------------------------------------------------------------------------------- 1 | 2 | idea 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-06.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-09.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 1 - Crear una Cadena de Bloques/blockchain.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # -*- coding: utf-8 -*- 3 | """ 4 | Created on Wed Aug 25 16:07:09 2021 5 | 6 | @author: juangabriel 7 | """ 8 | 9 | # Módulo 1 - Crear una Cadena de Bloques 10 | 11 | # Para Instalar: 12 | # Flask==1.1.2: pip install Flask==1.1.2 13 | # Cliente HTTP Postman: https://www.getpostman.com/ 14 | 15 | # Importar las librerías 16 | import datetime 17 | import hashlib 18 | import json 19 | from flask import Flask, jsonify 20 | 21 | # Parte 1 - Crear la Cadena de Bloques 22 | class Blockchain: 23 | 24 | def __init__(self): 25 | self.chain = [] 26 | self.create_block(proof = 1, previous_hash = '0') 27 | 28 | def create_block(self, proof, previous_hash): 29 | block = {'index' : len(self.chain)+1, 30 | 'timestamp' : str(datetime.datetime.now()), 31 | 'proof' : proof, 32 | 'previous_hash': previous_hash} 33 | self.chain.append(block) 34 | return block 35 | 36 | def get_previous_block(self): 37 | return self.chain[-1] 38 | 39 | def proof_of_work(self, previous_proof): 40 | new_proof = 1 41 | check_proof = False 42 | while check_proof is False: 43 | hash_operation = hashlib.sha256(str(new_proof**2 - previous_proof**2).encode()).hexdigest() 44 | if hash_operation[:4] == '0000': 45 | check_proof = True 46 | else: 47 | new_proof += 1 48 | return new_proof 49 | 50 | def hash(self, block): 51 | encoded_block = json.dumps(block, sort_keys = True).encode() 52 | return hashlib.sha256(encoded_block).hexdigest() 53 | 54 | def is_chain_valid(self, chain): 55 | previous_block = chain[0] 56 | block_index = 1 57 | while block_index < len(chain): 58 | block = chain[block_index] 59 | if block['previous_hash'] != self.hash(previous_block): 60 | return False 61 | previous_proof = previous_block['proof'] 62 | proof = block['proof'] 63 | hash_operation = hashlib.sha256(str(proof**2 - previous_proof**2).encode()).hexdigest() 64 | if hash_operation[:4] != '0000': 65 | return False 66 | previous_block = block 67 | block_index += 1 68 | return True 69 | 70 | # Parte 2 - Minado de un Bloque de la Cadena 71 | 72 | # Crear una aplicación web 73 | app = Flask(__name__) 74 | # Si se obtiene un error 500, actualizar flask, reiniciar spyder y ejecutar la siguiente línea 75 | app.config['JSONIFY_PRETTYPRINT_REGULAR'] = False 76 | 77 | # Crear una Blockchain 78 | blockchain = Blockchain() 79 | 80 | # Minar un nuevo bloque 81 | @app.route('/mine_block', methods=['GET']) 82 | def mine_block(): 83 | previous_block = blockchain.get_previous_block() 84 | previous_proof = previous_block['proof'] 85 | proof = blockchain.proof_of_work(previous_proof) 86 | previous_hash = blockchain.hash(previous_block) 87 | block = blockchain.create_block(proof, previous_hash) 88 | response = {'message' : '¡Enhorabuena, has minado un nuevo bloque!', 89 | 'index': block['index'], 90 | 'timestamp' : block['timestamp'], 91 | 'proof' : block['proof'], 92 | 'previous_hash' : block['previous_hash']} 93 | return jsonify(response), 200 94 | 95 | # Obtener la cadena de bloques al completo 96 | @app.route('/get_chain', methods=['GET']) 97 | def get_chain(): 98 | response = {'chain' : blockchain.chain, 99 | 'length' : len(blockchain.chain)} 100 | return jsonify(response), 200 101 | 102 | # Comprobar si la cadena de bloques es válida 103 | @app.route('/is_valid', methods = ['GET']) 104 | def is_valid(): 105 | is_valid = blockchain.is_chain_valid(blockchain.chain) 106 | if is_valid: 107 | response = {'message' : 'Todo correcto. La cadena de bloques es válida.'} 108 | else: 109 | response = {'message' : 'Houston, tenemos un problema. La cadena de bloques no es válida.'} 110 | return jsonify(response), 200 111 | 112 | # Ejecutar la app 113 | app.run(host = '0.0.0.0', port = 5000) 114 | 115 | 116 | 117 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-10.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-07.svg: -------------------------------------------------------------------------------- 1 | onboarding_icon-07 -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-myetherwallet.svg: -------------------------------------------------------------------------------- 1 | MyEtherWalelt Logo 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-myetherwallet.min.svg: -------------------------------------------------------------------------------- 1 | MyEtherWallet Logo 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-05.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-02.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/onboarding_icon-03.svg: -------------------------------------------------------------------------------- 1 | onboarding_icons -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/logo-myetherwalletcx.svg: -------------------------------------------------------------------------------- 1 | MyEtherWallet CX Logo 2 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/images/shapeshift-dark.svg: -------------------------------------------------------------------------------- 1 | shapeshift_logo -------------------------------------------------------------------------------- /Modulo 2 - Crear una Criptomoneda/jbcoin.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # -*- coding: utf-8 -*- 3 | """ 4 | Created on Thu Sep 2 09:33:47 2021 5 | 6 | @author: juangabriel 7 | """ 8 | 9 | 10 | # Módulo 2 - Crear una Criptomoneda 11 | 12 | # Para Instalar: 13 | # Flask==1.1.2: pip install Flask==1.1.2 14 | # Cliente HTTP Postman: https://www.getpostman.com/ 15 | # requests==2.25.1: pip install requests==2.25.1 16 | 17 | # Importar las librerías 18 | import datetime 19 | import hashlib 20 | import json 21 | from flask import Flask, jsonify, request 22 | import requests 23 | from uuid import uuid4 24 | from urllib.parse import urlparse 25 | 26 | # Parte 1 - Crear la Cadena de Bloques 27 | 28 | class Blockchain: 29 | 30 | def __init__(self): 31 | self.chain = [] 32 | self.transactions = [] 33 | self.create_block(proof = 1, previous_hash = '0') 34 | self.nodes = set() 35 | 36 | def create_block(self, proof, previous_hash): 37 | block = {'index' : len(self.chain)+1, 38 | 'timestamp' : str(datetime.datetime.now()), 39 | 'proof' : proof, 40 | 'previous_hash': previous_hash, 41 | 'transactions': self.transactions} 42 | self.transactions = [] 43 | self.chain.append(block) 44 | return block 45 | 46 | def get_previous_block(self): 47 | return self.chain[-1] 48 | 49 | def proof_of_work(self, previous_proof): 50 | new_proof = 1 51 | check_proof = False 52 | while check_proof is False: 53 | hash_operation = hashlib.sha256(str(new_proof**2 - previous_proof**2).encode()).hexdigest() 54 | if hash_operation[:4] == '0000': 55 | check_proof = True 56 | else: 57 | new_proof += 1 58 | return new_proof 59 | 60 | def hash(self, block): 61 | encoded_block = json.dumps(block, sort_keys = True).encode() 62 | return hashlib.sha256(encoded_block).hexdigest() 63 | 64 | def is_chain_valid(self, chain): 65 | previous_block = chain[0] 66 | block_index = 1 67 | while block_index < len(chain): 68 | block = chain[block_index] 69 | if block['previous_hash'] != self.hash(previous_block): 70 | return False 71 | previous_proof = previous_block['proof'] 72 | proof = block['proof'] 73 | hash_operation = hashlib.sha256(str(proof**2 - previous_proof**2).encode()).hexdigest() 74 | if hash_operation[:4] != '0000': 75 | return False 76 | previous_block = block 77 | block_index += 1 78 | return True 79 | 80 | def add_transaction(self, sender, receiver, amount): 81 | self.transactions.append({'sender': sender, 82 | 'receiver': receiver, 83 | 'amount': amount}) 84 | previous_block = self.previous_block() 85 | return previous_block['index'] + 1 86 | 87 | def add_node(self, address): 88 | parsed_url = urlparse(address) 89 | self.nodes.add(parsed_url.netloc) 90 | 91 | def replace_chain(self): 92 | network = self.nodes 93 | longest_chain = None 94 | max_length = len(self.chain) 95 | for node in network: 96 | response = requests.get(f'http://{node}/get_chain') 97 | if response.status_code == 200: 98 | length = response.json()['length'] 99 | chain = response.json()['chain'] 100 | if length > max_length and self.is_chain_valid(chain): 101 | max_length = length 102 | longest_chain = chain 103 | if longest_chain: 104 | self.chain = longest_chain 105 | return True 106 | return False 107 | 108 | # Parte 2 - Minado de un Bloque de la Cadena 109 | 110 | # Crear una aplicación web 111 | app = Flask(__name__) 112 | # Si se obtiene un error 500, actualizar flask, reiniciar spyder y ejecutar la siguiente línea 113 | app.config['JSONIFY_PRETTYPRINT_REGULAR'] = False 114 | 115 | # Crear la dirección del nodo en el puerto 5000 116 | node_address = str(uuid4()).replace('-', '') 117 | 118 | 119 | # Crear una Blockchain 120 | blockchain = Blockchain() 121 | 122 | # Minar un nuevo bloque 123 | @app.route('/mine_block', methods=['GET']) 124 | def mine_block(): 125 | previous_block = blockchain.get_previous_block() 126 | previous_proof = previous_block['proof'] 127 | proof = blockchain.proof_of_work(previous_proof) 128 | previous_hash = blockchain.hash(previous_block) 129 | blockchain.add_transaction(sender = node_address, receiver = "Juan Gabriel", amount = 10) 130 | block = blockchain.create_block(proof, previous_hash) 131 | response = {'message' : '¡Enhorabuena, has minado un nuevo bloque!', 132 | 'index': block['index'], 133 | 'timestamp' : block['timestamp'], 134 | 'proof' : block['proof'], 135 | 'previous_hash' : block['previous_hash'], 136 | 'transactions': block['transactions']} 137 | return jsonify(response), 200 138 | 139 | # Obtener la cadena de bloques al completo 140 | @app.route('/get_chain', methods=['GET']) 141 | def get_chain(): 142 | response = {'chain' : blockchain.chain, 143 | 'length' : len(blockchain.chain)} 144 | return jsonify(response), 200 145 | 146 | # Comprobar si la cadena de bloques es válida 147 | @app.route('/is_valid', methods = ['GET']) 148 | def is_valid(): 149 | is_valid = blockchain.is_chain_valid(blockchain.chain) 150 | if is_valid: 151 | response = {'message' : 'Todo correcto. La cadena de bloques es válida.'} 152 | else: 153 | response = {'message' : 'Houston, tenemos un problema. La cadena de bloques no es válida.'} 154 | return jsonify(response), 200 155 | 156 | 157 | # Añadir una nueva transacción a la cadena de bloques 158 | @app.route('/add_transaction', methods = ['POST']) 159 | def add_transaction(): 160 | json = request.get_json() 161 | transaction_keys = ['sender', 'receiver', 'amount'] 162 | if not all(key in json for key in transaction_keys): 163 | return 'Faltan algunos elementos de la transacción', 400 164 | index = blockchain.add_transaction(json['sender'], json['receiver'], json['amount']) 165 | response = {'message': f'La transacción será añadida al bloque {index}'} 166 | return jsonify(response), 201 167 | 168 | # Parte 3 - Descentralizar la Cadena de Bloques 169 | 170 | # Conectar nuevos nodos 171 | @app.route('/connect_node', methods = ['POST']) 172 | def connect_node(): 173 | json = request.get_json() 174 | nodes = json.get('nodes') 175 | if nodes is None: 176 | return 'No hay nodos para añadir', 400 177 | for node in nodes: 178 | blockchain.add_node(node) 179 | response = {'message' : 'Todos los nodos han sido conectados. La cadena de Jbcoins contiene ahora los nodos siguientes: ', 180 | 'total_nodes': list(blockchain.nodes)} 181 | return jsonify(response), 201 182 | 183 | # Reemplazar la cadena por la más larga (si es necesario) 184 | @app.route('/replace_chain', methods = ['GET']) 185 | def replace_chain(): 186 | is_chain_replaced = blockchain.replace_chain() 187 | if is_chain_replaced: 188 | response = {'message' : 'Los nodos tenían diferentes cadenas, que han sido todas reemplazadas por la más larga.', 189 | 'new_chain': blockchain.chain} 190 | else: 191 | response = {'message' : 'Todo correcto. La cadena en todos los nodos ya es la más larga.', 192 | 'actual_chain' : blockchain.chain} 193 | return jsonify(response), 200 194 | 195 | 196 | # Ejecutar la app 197 | app.run(host = '0.0.0.0', port = 5000) 198 | 199 | 200 | -------------------------------------------------------------------------------- /Modulo 2 - Crear una Criptomoneda/jbcoin_node_5002.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # -*- coding: utf-8 -*- 3 | """ 4 | Created on Thu Sep 2 09:33:47 2021 5 | 6 | @author: juangabriel 7 | """ 8 | 9 | 10 | # Módulo 2 - Crear una Criptomoneda 11 | 12 | # Para Instalar: 13 | # Flask==1.1.2: pip install Flask==1.1.2 14 | # Cliente HTTP Postman: https://www.getpostman.com/ 15 | # requests==2.25.1: pip install requests==2.25.1 16 | 17 | # Importar las librerías 18 | import datetime 19 | import hashlib 20 | import json 21 | from flask import Flask, jsonify, request 22 | import requests 23 | from uuid import uuid4 24 | from urllib.parse import urlparse 25 | 26 | # Parte 1 - Crear la Cadena de Bloques 27 | 28 | class Blockchain: 29 | 30 | def __init__(self): 31 | self.chain = [] 32 | self.transactions = [] 33 | self.create_block(proof = 1, previous_hash = '0') 34 | self.nodes = set() 35 | 36 | def create_block(self, proof, previous_hash): 37 | block = {'index' : len(self.chain)+1, 38 | 'timestamp' : str(datetime.datetime.now()), 39 | 'proof' : proof, 40 | 'previous_hash': previous_hash, 41 | 'transactions': self.transactions} 42 | self.transactions = [] 43 | self.chain.append(block) 44 | return block 45 | 46 | def get_previous_block(self): 47 | return self.chain[-1] 48 | 49 | def proof_of_work(self, previous_proof): 50 | new_proof = 1 51 | check_proof = False 52 | while check_proof is False: 53 | hash_operation = hashlib.sha256(str(new_proof**2 - previous_proof**2).encode()).hexdigest() 54 | if hash_operation[:4] == '0000': 55 | check_proof = True 56 | else: 57 | new_proof += 1 58 | return new_proof 59 | 60 | def hash(self, block): 61 | encoded_block = json.dumps(block, sort_keys = True).encode() 62 | return hashlib.sha256(encoded_block).hexdigest() 63 | 64 | def is_chain_valid(self, chain): 65 | previous_block = chain[0] 66 | block_index = 1 67 | while block_index < len(chain): 68 | block = chain[block_index] 69 | if block['previous_hash'] != self.hash(previous_block): 70 | return False 71 | previous_proof = previous_block['proof'] 72 | proof = block['proof'] 73 | hash_operation = hashlib.sha256(str(proof**2 - previous_proof**2).encode()).hexdigest() 74 | if hash_operation[:4] != '0000': 75 | return False 76 | previous_block = block 77 | block_index += 1 78 | return True 79 | 80 | def add_transaction(self, sender, receiver, amount): 81 | self.transactions.append({'sender': sender, 82 | 'receiver': receiver, 83 | 'amount': amount}) 84 | previous_block = self.get_previous_block() 85 | return previous_block['index'] + 1 86 | 87 | def add_node(self, address): 88 | parsed_url = urlparse(address) 89 | self.nodes.add(parsed_url.netloc) 90 | 91 | def replace_chain(self): 92 | network = self.nodes 93 | longest_chain = None 94 | max_length = len(self.chain) 95 | for node in network: 96 | response = requests.get(f'http://{node}/get_chain') 97 | if response.status_code == 200: 98 | length = response.json()['length'] 99 | chain = response.json()['chain'] 100 | if length > max_length and self.is_chain_valid(chain): 101 | max_length = length 102 | longest_chain = chain 103 | if longest_chain: 104 | self.chain = longest_chain 105 | return True 106 | return False 107 | 108 | # Parte 2 - Minado de un Bloque de la Cadena 109 | 110 | # Crear una aplicación web 111 | app = Flask(__name__) 112 | # Si se obtiene un error 500, actualizar flask, reiniciar spyder y ejecutar la siguiente línea 113 | app.config['JSONIFY_PRETTYPRINT_REGULAR'] = False 114 | 115 | # Crear la dirección del nodo en el puerto 5000 116 | node_address = str(uuid4()).replace('-', '') 117 | 118 | 119 | # Crear una Blockchain 120 | blockchain = Blockchain() 121 | 122 | # Minar un nuevo bloque 123 | @app.route('/mine_block', methods=['GET']) 124 | def mine_block(): 125 | previous_block = blockchain.get_previous_block() 126 | previous_proof = previous_block['proof'] 127 | proof = blockchain.proof_of_work(previous_proof) 128 | previous_hash = blockchain.hash(previous_block) 129 | blockchain.add_transaction(sender = node_address, receiver = "Kirill", amount = 10) 130 | block = blockchain.create_block(proof, previous_hash) 131 | response = {'message' : '¡Enhorabuena, has minado un nuevo bloque!', 132 | 'index': block['index'], 133 | 'timestamp' : block['timestamp'], 134 | 'proof' : block['proof'], 135 | 'previous_hash' : block['previous_hash'], 136 | 'transactions': block['transactions']} 137 | return jsonify(response), 200 138 | 139 | # Obtener la cadena de bloques al completo 140 | @app.route('/get_chain', methods=['GET']) 141 | def get_chain(): 142 | response = {'chain' : blockchain.chain, 143 | 'length' : len(blockchain.chain)} 144 | return jsonify(response), 200 145 | 146 | # Comprobar si la cadena de bloques es válida 147 | @app.route('/is_valid', methods = ['GET']) 148 | def is_valid(): 149 | is_valid = blockchain.is_chain_valid(blockchain.chain) 150 | if is_valid: 151 | response = {'message' : 'Todo correcto. La cadena de bloques es válida.'} 152 | else: 153 | response = {'message' : 'Houston, tenemos un problema. La cadena de bloques no es válida.'} 154 | return jsonify(response), 200 155 | 156 | 157 | # Añadir una nueva transacción a la cadena de bloques 158 | @app.route('/add_transaction', methods = ['POST']) 159 | def add_transaction(): 160 | json = request.get_json() 161 | transaction_keys = ['sender', 'receiver', 'amount'] 162 | if not all(key in json for key in transaction_keys): 163 | return 'Faltan algunos elementos de la transacción', 400 164 | index = blockchain.add_transaction(json['sender'], json['receiver'], json['amount']) 165 | response = {'message': f'La transacción será añadida al bloque {index}'} 166 | return jsonify(response), 201 167 | 168 | # Parte 3 - Descentralizar la Cadena de Bloques 169 | 170 | # Conectar nuevos nodos 171 | @app.route('/connect_node', methods = ['POST']) 172 | def connect_node(): 173 | json = request.get_json() 174 | nodes = json.get('nodes') 175 | if nodes is None: 176 | return 'No hay nodos para añadir', 400 177 | for node in nodes: 178 | blockchain.add_node(node) 179 | response = {'message' : 'Todos los nodos han sido conectados. La cadena de Jbcoins contiene ahora los nodos siguientes: ', 180 | 'total_nodes': list(blockchain.nodes)} 181 | return jsonify(response), 201 182 | 183 | # Reemplazar la cadena por la más larga (si es necesario) 184 | @app.route('/replace_chain', methods = ['GET']) 185 | def replace_chain(): 186 | is_chain_replaced = blockchain.replace_chain() 187 | if is_chain_replaced: 188 | response = {'message' : 'Los nodos tenían diferentes cadenas, que han sido todas reemplazadas por la más larga.', 189 | 'new_chain': blockchain.chain} 190 | else: 191 | response = {'message' : 'Todo correcto. La cadena en todos los nodos ya es la más larga.', 192 | 'actual_chain' : blockchain.chain} 193 | return jsonify(response), 200 194 | 195 | 196 | # Ejecutar la app 197 | app.run(host = '0.0.0.0', port = 5002) 198 | 199 | 200 | -------------------------------------------------------------------------------- /Modulo 2 - Crear una Criptomoneda/jbcoin_node_5003.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # -*- coding: utf-8 -*- 3 | """ 4 | Created on Thu Sep 2 09:33:47 2021 5 | 6 | @author: juangabriel 7 | """ 8 | 9 | 10 | # Módulo 2 - Crear una Criptomoneda 11 | 12 | # Para Instalar: 13 | # Flask==1.1.2: pip install Flask==1.1.2 14 | # Cliente HTTP Postman: https://www.getpostman.com/ 15 | # requests==2.25.1: pip install requests==2.25.1 16 | 17 | # Importar las librerías 18 | import datetime 19 | import hashlib 20 | import json 21 | from flask import Flask, jsonify, request 22 | import requests 23 | from uuid import uuid4 24 | from urllib.parse import urlparse 25 | 26 | # Parte 1 - Crear la Cadena de Bloques 27 | 28 | class Blockchain: 29 | 30 | def __init__(self): 31 | self.chain = [] 32 | self.transactions = [] 33 | self.create_block(proof = 1, previous_hash = '0') 34 | self.nodes = set() 35 | 36 | def create_block(self, proof, previous_hash): 37 | block = {'index' : len(self.chain)+1, 38 | 'timestamp' : str(datetime.datetime.now()), 39 | 'proof' : proof, 40 | 'previous_hash': previous_hash, 41 | 'transactions': self.transactions} 42 | self.transactions = [] 43 | self.chain.append(block) 44 | return block 45 | 46 | def get_previous_block(self): 47 | return self.chain[-1] 48 | 49 | def proof_of_work(self, previous_proof): 50 | new_proof = 1 51 | check_proof = False 52 | while check_proof is False: 53 | hash_operation = hashlib.sha256(str(new_proof**2 - previous_proof**2).encode()).hexdigest() 54 | if hash_operation[:4] == '0000': 55 | check_proof = True 56 | else: 57 | new_proof += 1 58 | return new_proof 59 | 60 | def hash(self, block): 61 | encoded_block = json.dumps(block, sort_keys = True).encode() 62 | return hashlib.sha256(encoded_block).hexdigest() 63 | 64 | def is_chain_valid(self, chain): 65 | previous_block = chain[0] 66 | block_index = 1 67 | while block_index < len(chain): 68 | block = chain[block_index] 69 | if block['previous_hash'] != self.hash(previous_block): 70 | return False 71 | previous_proof = previous_block['proof'] 72 | proof = block['proof'] 73 | hash_operation = hashlib.sha256(str(proof**2 - previous_proof**2).encode()).hexdigest() 74 | if hash_operation[:4] != '0000': 75 | return False 76 | previous_block = block 77 | block_index += 1 78 | return True 79 | 80 | def add_transaction(self, sender, receiver, amount): 81 | self.transactions.append({'sender': sender, 82 | 'receiver': receiver, 83 | 'amount': amount}) 84 | previous_block = self.get_previous_block() 85 | return previous_block['index'] + 1 86 | 87 | def add_node(self, address): 88 | parsed_url = urlparse(address) 89 | self.nodes.add(parsed_url.netloc) 90 | 91 | def replace_chain(self): 92 | network = self.nodes 93 | longest_chain = None 94 | max_length = len(self.chain) 95 | for node in network: 96 | response = requests.get(f'http://{node}/get_chain') 97 | if response.status_code == 200: 98 | length = response.json()['length'] 99 | chain = response.json()['chain'] 100 | if length > max_length and self.is_chain_valid(chain): 101 | max_length = length 102 | longest_chain = chain 103 | if longest_chain: 104 | self.chain = longest_chain 105 | return True 106 | return False 107 | 108 | # Parte 2 - Minado de un Bloque de la Cadena 109 | 110 | # Crear una aplicación web 111 | app = Flask(__name__) 112 | # Si se obtiene un error 500, actualizar flask, reiniciar spyder y ejecutar la siguiente línea 113 | app.config['JSONIFY_PRETTYPRINT_REGULAR'] = False 114 | 115 | # Crear la dirección del nodo en el puerto 5000 116 | node_address = str(uuid4()).replace('-', '') 117 | 118 | 119 | # Crear una Blockchain 120 | blockchain = Blockchain() 121 | 122 | # Minar un nuevo bloque 123 | @app.route('/mine_block', methods=['GET']) 124 | def mine_block(): 125 | previous_block = blockchain.get_previous_block() 126 | previous_proof = previous_block['proof'] 127 | proof = blockchain.proof_of_work(previous_proof) 128 | previous_hash = blockchain.hash(previous_block) 129 | blockchain.add_transaction(sender = node_address, receiver = "Hadelin", amount = 10) 130 | block = blockchain.create_block(proof, previous_hash) 131 | response = {'message' : '¡Enhorabuena, has minado un nuevo bloque!', 132 | 'index': block['index'], 133 | 'timestamp' : block['timestamp'], 134 | 'proof' : block['proof'], 135 | 'previous_hash' : block['previous_hash'], 136 | 'transactions': block['transactions']} 137 | return jsonify(response), 200 138 | 139 | # Obtener la cadena de bloques al completo 140 | @app.route('/get_chain', methods=['GET']) 141 | def get_chain(): 142 | response = {'chain' : blockchain.chain, 143 | 'length' : len(blockchain.chain)} 144 | return jsonify(response), 200 145 | 146 | # Comprobar si la cadena de bloques es válida 147 | @app.route('/is_valid', methods = ['GET']) 148 | def is_valid(): 149 | is_valid = blockchain.is_chain_valid(blockchain.chain) 150 | if is_valid: 151 | response = {'message' : 'Todo correcto. La cadena de bloques es válida.'} 152 | else: 153 | response = {'message' : 'Houston, tenemos un problema. La cadena de bloques no es válida.'} 154 | return jsonify(response), 200 155 | 156 | 157 | # Añadir una nueva transacción a la cadena de bloques 158 | @app.route('/add_transaction', methods = ['POST']) 159 | def add_transaction(): 160 | json = request.get_json() 161 | transaction_keys = ['sender', 'receiver', 'amount'] 162 | if not all(key in json for key in transaction_keys): 163 | return 'Faltan algunos elementos de la transacción', 400 164 | index = blockchain.add_transaction(json['sender'], json['receiver'], json['amount']) 165 | response = {'message': f'La transacción será añadida al bloque {index}'} 166 | return jsonify(response), 201 167 | 168 | # Parte 3 - Descentralizar la Cadena de Bloques 169 | 170 | # Conectar nuevos nodos 171 | @app.route('/connect_node', methods = ['POST']) 172 | def connect_node(): 173 | json = request.get_json() 174 | nodes = json.get('nodes') 175 | if nodes is None: 176 | return 'No hay nodos para añadir', 400 177 | for node in nodes: 178 | blockchain.add_node(node) 179 | response = {'message' : 'Todos los nodos han sido conectados. La cadena de Jbcoins contiene ahora los nodos siguientes: ', 180 | 'total_nodes': list(blockchain.nodes)} 181 | return jsonify(response), 201 182 | 183 | # Reemplazar la cadena por la más larga (si es necesario) 184 | @app.route('/replace_chain', methods = ['GET']) 185 | def replace_chain(): 186 | is_chain_replaced = blockchain.replace_chain() 187 | if is_chain_replaced: 188 | response = {'message' : 'Los nodos tenían diferentes cadenas, que han sido todas reemplazadas por la más larga.', 189 | 'new_chain': blockchain.chain} 190 | else: 191 | response = {'message' : 'Todo correcto. La cadena en todos los nodos ya es la más larga.', 192 | 'actual_chain' : blockchain.chain} 193 | return jsonify(response), 200 194 | 195 | 196 | # Ejecutar la app 197 | app.run(host = '0.0.0.0', port = 5003) 198 | 199 | 200 | -------------------------------------------------------------------------------- /Modulo 2 - Crear una Criptomoneda/jbcoin_node_5001.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # -*- coding: utf-8 -*- 3 | """ 4 | Created on Thu Sep 2 09:33:47 2021 5 | 6 | @author: juangabriel 7 | """ 8 | 9 | 10 | # Módulo 2 - Crear una Criptomoneda 11 | 12 | # Para Instalar: 13 | # Flask==1.1.2: pip install Flask==1.1.2 14 | # Cliente HTTP Postman: https://www.getpostman.com/ 15 | # requests==2.25.1: pip install requests==2.25.1 16 | 17 | # Importar las librerías 18 | import datetime 19 | import hashlib 20 | import json 21 | from flask import Flask, jsonify, request 22 | import requests 23 | from uuid import uuid4 24 | from urllib.parse import urlparse 25 | 26 | # Parte 1 - Crear la Cadena de Bloques 27 | 28 | class Blockchain: 29 | 30 | def __init__(self): 31 | self.chain = [] 32 | self.transactions = [] 33 | self.create_block(proof = 1, previous_hash = '0') 34 | self.nodes = set() 35 | 36 | def create_block(self, proof, previous_hash): 37 | block = {'index' : len(self.chain)+1, 38 | 'timestamp' : str(datetime.datetime.now()), 39 | 'proof' : proof, 40 | 'previous_hash': previous_hash, 41 | 'transactions': self.transactions} 42 | self.transactions = [] 43 | self.chain.append(block) 44 | return block 45 | 46 | def get_previous_block(self): 47 | return self.chain[-1] 48 | 49 | def proof_of_work(self, previous_proof): 50 | new_proof = 1 51 | check_proof = False 52 | while check_proof is False: 53 | hash_operation = hashlib.sha256(str(new_proof**2 - previous_proof**2).encode()).hexdigest() 54 | if hash_operation[:4] == '0000': 55 | check_proof = True 56 | else: 57 | new_proof += 1 58 | return new_proof 59 | 60 | def hash(self, block): 61 | encoded_block = json.dumps(block, sort_keys = True).encode() 62 | return hashlib.sha256(encoded_block).hexdigest() 63 | 64 | def is_chain_valid(self, chain): 65 | previous_block = chain[0] 66 | block_index = 1 67 | while block_index < len(chain): 68 | block = chain[block_index] 69 | if block['previous_hash'] != self.hash(previous_block): 70 | return False 71 | previous_proof = previous_block['proof'] 72 | proof = block['proof'] 73 | hash_operation = hashlib.sha256(str(proof**2 - previous_proof**2).encode()).hexdigest() 74 | if hash_operation[:4] != '0000': 75 | return False 76 | previous_block = block 77 | block_index += 1 78 | return True 79 | 80 | def add_transaction(self, sender, receiver, amount): 81 | self.transactions.append({'sender': sender, 82 | 'receiver': receiver, 83 | 'amount': amount}) 84 | previous_block = self.get_previous_block() 85 | return previous_block['index'] + 1 86 | 87 | def add_node(self, address): 88 | parsed_url = urlparse(address) 89 | self.nodes.add(parsed_url.netloc) 90 | 91 | def replace_chain(self): 92 | network = self.nodes 93 | longest_chain = None 94 | max_length = len(self.chain) 95 | for node in network: 96 | response = requests.get(f'http://{node}/get_chain') 97 | if response.status_code == 200: 98 | length = response.json()['length'] 99 | chain = response.json()['chain'] 100 | if length > max_length and self.is_chain_valid(chain): 101 | max_length = length 102 | longest_chain = chain 103 | if longest_chain: 104 | self.chain = longest_chain 105 | return True 106 | return False 107 | 108 | # Parte 2 - Minado de un Bloque de la Cadena 109 | 110 | # Crear una aplicación web 111 | app = Flask(__name__) 112 | # Si se obtiene un error 500, actualizar flask, reiniciar spyder y ejecutar la siguiente línea 113 | app.config['JSONIFY_PRETTYPRINT_REGULAR'] = False 114 | 115 | # Crear la dirección del nodo en el puerto 5000 116 | node_address = str(uuid4()).replace('-', '') 117 | 118 | 119 | # Crear una Blockchain 120 | blockchain = Blockchain() 121 | 122 | # Minar un nuevo bloque 123 | @app.route('/mine_block', methods=['GET']) 124 | def mine_block(): 125 | previous_block = blockchain.get_previous_block() 126 | previous_proof = previous_block['proof'] 127 | proof = blockchain.proof_of_work(previous_proof) 128 | previous_hash = blockchain.hash(previous_block) 129 | blockchain.add_transaction(sender = node_address, receiver = "Juan Gabriel", amount = 10) 130 | block = blockchain.create_block(proof, previous_hash) 131 | response = {'message' : '¡Enhorabuena, has minado un nuevo bloque!', 132 | 'index': block['index'], 133 | 'timestamp' : block['timestamp'], 134 | 'proof' : block['proof'], 135 | 'previous_hash' : block['previous_hash'], 136 | 'transactions': block['transactions']} 137 | return jsonify(response), 200 138 | 139 | # Obtener la cadena de bloques al completo 140 | @app.route('/get_chain', methods=['GET']) 141 | def get_chain(): 142 | response = {'chain' : blockchain.chain, 143 | 'length' : len(blockchain.chain)} 144 | return jsonify(response), 200 145 | 146 | # Comprobar si la cadena de bloques es válida 147 | @app.route('/is_valid', methods = ['GET']) 148 | def is_valid(): 149 | is_valid = blockchain.is_chain_valid(blockchain.chain) 150 | if is_valid: 151 | response = {'message' : 'Todo correcto. La cadena de bloques es válida.'} 152 | else: 153 | response = {'message' : 'Houston, tenemos un problema. La cadena de bloques no es válida.'} 154 | return jsonify(response), 200 155 | 156 | 157 | # Añadir una nueva transacción a la cadena de bloques 158 | @app.route('/add_transaction', methods = ['POST']) 159 | def add_transaction(): 160 | json = request.get_json() 161 | transaction_keys = ['sender', 'receiver', 'amount'] 162 | if not all(key in json for key in transaction_keys): 163 | return 'Faltan algunos elementos de la transacción', 400 164 | index = blockchain.add_transaction(json['sender'], json['receiver'], json['amount']) 165 | response = {'message': f'La transacción será añadida al bloque {index}'} 166 | return jsonify(response), 201 167 | 168 | # Parte 3 - Descentralizar la Cadena de Bloques 169 | 170 | # Conectar nuevos nodos 171 | @app.route('/connect_node', methods = ['POST']) 172 | def connect_node(): 173 | json = request.get_json() 174 | nodes = json.get('nodes') 175 | if nodes is None: 176 | return 'No hay nodos para añadir', 400 177 | for node in nodes: 178 | blockchain.add_node(node) 179 | response = {'message' : 'Todos los nodos han sido conectados. La cadena de Jbcoins contiene ahora los nodos siguientes: ', 180 | 'total_nodes': list(blockchain.nodes)} 181 | return jsonify(response), 201 182 | 183 | # Reemplazar la cadena por la más larga (si es necesario) 184 | @app.route('/replace_chain', methods = ['GET']) 185 | def replace_chain(): 186 | is_chain_replaced = blockchain.replace_chain() 187 | if is_chain_replaced: 188 | response = {'message' : 'Los nodos tenían diferentes cadenas, que han sido todas reemplazadas por la más larga.', 189 | 'new_chain': blockchain.chain} 190 | else: 191 | response = {'message' : 'Todo correcto. La cadena en todos los nodos ya es la más larga.', 192 | 'actual_chain' : blockchain.chain} 193 | return jsonify(response), 200 194 | 195 | 196 | # Ejecutar la app 197 | app.run(host = '0.0.0.0', port = 5001) 198 | 199 | 200 | -------------------------------------------------------------------------------- /Modulo 3 - Crear un Contrato Inteligente/etherwallet-v3.11.2.4/signmsg.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | MyEtherWallet.com 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 |
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70 | Message 71 |

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81 | 82 | Include your nickname and where you use the nickname so someone else cannot use it. 83 | 84 | 85 | Include a specific reason for the message so it cannot be reused for a different purpose. 86 | 87 |

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131 | {{ verifiedMsg.address }} did sign the message {{ verifiedMsg.msg }}. 132 |

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