Encrypt on Micha Kops' Tech Notes

Encrypt on Micha Kops' Tech Notes https://www.hascode.com/tags/encrypt/ Recent content in Encrypt on Micha Kops' Tech Notes Hugo en Copyright © 2010 - 2025 Micha Kops. #e9d956c0c0154a221ad83c925346a8fa0e72f866 Sun, 02 Feb 2020 00:00:00 +0100 Encrypt/Decrypt Text Content https://www.hascode.com/tools/encrypt/ Sun, 02 Feb 2020 00:00:00 +0100 https://www.hascode.com/tools/encrypt/ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>AES Encryption Tool</title> <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/4.1.1/crypto-js.min.js"></script> </head> <body> <div class="custom-tools"> <h2>AES Encryption Tool</h2> <label for="inputText">Text to Encrypt:</label> <textarea id="inputText" rows="5" cols="50"></textarea> <div class="button-group"> <button onclick="copyToClipboard('inputText')">Copy</button> <button onclick="pasteFromClipboard('inputText')">Paste</button> </div> <label for="password">Password:</label> <input type="password" id="password"> <label for="salt">Salt:</label> <input type="password" id="salt"> <label for="iv">IV:</label> <input type="password" id="iv"> <div class="button-group"> <button onclick="generateRandomIV()">Generate IV</button> <button onclick="useFixedIV()">Use Fixed IV</button> </div> <div class="button-group"> <button onclick="encryptText()">Encrypt</button> <button onclick="decryptText()">Decrypt</button> <button onclick="resetAll()">Reset All</button> </div> <label for="outputText">Decrypted Text:</label> <textarea id="outputText" rows="5" cols="50"></textarea> <div class="button-group"> <button onclick="copyToClipboard('outputText')">Copy</button> <button onclick="pasteFromClipboard('outputText')">Paste</button> </div> </div> <script> function encryptText() { let text = document.getElementById('inputText').value; let password = document.getElementById('password').value; let salt = document.getElementById('salt').value; let iv = document.getElementById('iv').value; if (!text || !password || !salt || !iv) { alert('All fields are required!'); return; } let key = CryptoJS.PBKDF2(password, CryptoJS.enc.Utf8.parse(salt), { keySize: 256 / 32, iterations: 65536 }); let encrypted = CryptoJS.AES.encrypt(text, key, { iv: CryptoJS.enc.Utf8.parse(iv), mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 }); document.getElementById('outputText').value = encrypted.toString(); } function decryptText() { let encryptedText = document.getElementById('outputText').value; let password = document.getElementById('password').value; let salt = document.getElementById('salt').value; let iv = document.getElementById('iv').value; if (!encryptedText || !password || !salt || !iv) { alert('All fields are required!'); return; } let key = CryptoJS.PBKDF2(password, CryptoJS.enc.Utf8.parse(salt), { keySize: 256 / 32, iterations: 65536 }); let decrypted = CryptoJS.AES.decrypt(encryptedText, key, { iv: CryptoJS.enc.Utf8.parse(iv), mode: CryptoJS.mode.CBC, padding: CryptoJS.pad.Pkcs7 }); document.getElementById('inputText').value = decrypted.toString(CryptoJS.enc.Utf8); } function generateRandomIV() { let randomIV = CryptoJS.lib.WordArray.random(16).toString(CryptoJS.enc.Hex); document.getElementById('iv').value = randomIV; } function useFixedIV() { document.getElementById('iv').value = "AAAAAAAAAAAAAAAAAAAAAA=="; // Fixed 16-byte IV in hex } function copyToClipboard(elementId) { let text = document.getElementById(elementId); text.select(); document.execCommand('copy'); } function pasteFromClipboard(elementId) { navigator.clipboard.readText().then(text => { document.getElementById(elementId).value = text; }).catch(err => { alert('Failed to read clipboard: ' + err); }); } function resetAll() { document.getElementById('inputText').value = ''; document.getElementById('outputText').value = ''; document.getElementById('password').value = ''; document.getElementById('salt').value = ''; document.getElementById('iv').value = ''; } </script> </div> </body> </html>