added encryption to the publish action

qortal-ui-core/language/us.json

@@ -644,7 +644,8 @@
 		"bchange41": "Do you give this application permission to access this list?",
 		"bchange42": "Items",
 		"bchange43": "Do you give this application permission to add to this list?",
-		"bchange44": "Do you give this application permission to delete from this list?"
+		"bchange44": "Do you give this application permission to delete from this list?",
+		"bchange45": "Encrypt"
 	},
 	"datapage": {
 		"dchange1": "Data Management",

qortal-ui-plugins/plugins/core/components/qdn-action-encryption.js

@@ -0,0 +1,84 @@
+import nacl from '../../../../qortal-ui-crypto/api/deps/nacl-fast.js'
+import ed2curve from '../../../../qortal-ui-crypto/api/deps/ed2curve.js'
+
+
+
+export function uint8ArrayToBase64(uint8Array) {
+    const length = uint8Array.length;
+    let base64String = '';
+    const chunkSize = 1024 * 1024; // Process 1MB at a time
+
+    for (let i = 0; i < length; i += chunkSize) {
+        const chunkEnd = Math.min(i + chunkSize, length);
+        const chunk = uint8Array.subarray(i, chunkEnd);
+        const binaryString = chunk.reduce((acc, byte) => acc + String.fromCharCode(byte), '');
+        base64String += btoa(binaryString);
+    }
+
+    return base64String;
+}
+
+export function base64ToUint8Array(base64) {
+    const binaryString = atob(base64)
+    const len = binaryString.length
+    const bytes = new Uint8Array(len)
+
+    for (let i = 0; i < len; i++) {
+        bytes[i] = binaryString.charCodeAt(i)
+    }
+
+    return bytes
+}
+
+
+export const encryptData = ({ data64, recipientPublicKey }) => {
+
+
+    const Uint8ArrayData = base64ToUint8Array(data64)
+    const uint8Array = Uint8ArrayData
+
+    if (!(uint8Array instanceof Uint8Array)) {
+
+        throw new Error("The Uint8ArrayData you've submitted is invalid")
+    }
+    try {
+        const privateKey = window.parent.reduxStore.getState().app.selectedAddress.keyPair.privateKey
+        if (!privateKey) {
+
+            throw new Error("Unable to retrieve keys")
+        }
+        const publicKeyUnit8Array = window.parent.Base58.decode(recipientPublicKey)
+
+        const convertedPrivateKey = ed2curve.convertSecretKey(privateKey)
+        const convertedPublicKey = ed2curve.convertPublicKey(publicKeyUnit8Array)
+        const sharedSecret = new Uint8Array(32)
+        nacl.lowlevel.crypto_scalarmult(sharedSecret, convertedPrivateKey, convertedPublicKey)
+
+        const chatEncryptionSeed = new window.parent.Sha256().process(sharedSecret).finish().result
+
+        const nonce = new Uint8Array(24);
+        window.crypto.getRandomValues(nonce);
+        const encryptedData = nacl.secretbox(uint8Array, nonce, chatEncryptionSeed)
+
+        const str = "qortalEncryptedData";
+        const strEncoder = new TextEncoder();
+        const strUint8Array = strEncoder.encode(str);
+
+        const combinedData = new Uint8Array(strUint8Array.length + nonce.length + encryptedData.length);
+
+        combinedData.set(strUint8Array);
+
+        combinedData.set(nonce, strUint8Array.length);
+        combinedData.set(encryptedData, strUint8Array.length + nonce.length);
+
+        const uint8arrayToData64 = uint8ArrayToBase64(combinedData)
+
+        return {
+            encryptedData: uint8arrayToData64,
+            recipientPublicKey
+        }
+    } catch (error) {
+        console.log({ error })
+        throw new Error("Error in encrypting data")
+    }
+}

qortal-ui-plugins/plugins/core/qdn/browser/browser.src.js

@@ -24,6 +24,7 @@ import { QORT_DECIMALS } from 'qortal-ui-crypto/api/constants';
 import nacl from '../../../../../qortal-ui-crypto/api/deps/nacl-fast.js'
 import ed2curve from '../../../../../qortal-ui-crypto/api/deps/ed2curve.js'
 import { mimeToExtensionMap } from '../../components/qdn-action-constants';
+import { encryptData } from '../../components/qdn-action-encryption';
 const parentEpml = new Epml({ type: 'WINDOW', source: window.parent });
 
 class WebBrowser extends LitElement {
@@ -908,6 +909,7 @@ class WebBrowser extends LitElement {
 					return;
 
 				case actions.PUBLISH_QDN_RESOURCE: {
+					// optional fields: encrypt:boolean recipientPublicKey:string
 					const requiredFields = ['service', 'name', 'data64'];
 					const missingFields = [];
 
@@ -929,7 +931,7 @@ class WebBrowser extends LitElement {
 					const service = data.service;
 					const name = data.name;
 					let identifier = data.identifier;
-					const data64 = data.data64;
+					let data64 = data.data64;
 					const filename = data.filename;
 					const title = data.title;
 					const description = data.description;
@@ -942,12 +944,39 @@ class WebBrowser extends LitElement {
 					if (data.identifier == null) {
 						identifier = 'default';
 					}
+
+					if (data.encrypt && !data.recipientPublicKey) {
+						let data = {};
+						data['error'] = "Encrypting data requires the recipient's public key";
+						response = JSON.stringify(data);
+						break
+					}
+
+					if (data.encrypt) {
+						try {
+							const encryptDataResponse = encryptData({
+								data64, recipientPublicKey: data.recipientPublicKey
+							})
+							if (encryptDataResponse.encryptedData) {
+								data64 = encryptDataResponse.encryptedData
+							}
+
+						} catch (error) {
+							const obj = {};
+							const errorMsg = error.message || 'Upload failed due to failed encryption';
+							obj['error'] = errorMsg;
+							response = JSON.stringify(obj);
+							break
+						}
+
+					}
 					const res2 = await showModalAndWait(
 						actions.PUBLISH_QDN_RESOURCE,
 						{
 							name,
 							identifier,
-							service
+							service,
+							encrypt: data.encrypt
 						}
 					);
 					if (res2.action === 'accept') {
@@ -1034,6 +1063,7 @@ class WebBrowser extends LitElement {
 						actions.PUBLISH_MULTIPLE_QDN_RESOURCES,
 						{
 							resources,
+							encrypt: data.encrypt
 						}
 					);
 
@@ -2852,6 +2882,7 @@ async function showModalAndWait(type, data) {
 						${type === actions.PUBLISH_MULTIPLE_QDN_RESOURCES ? `			
 							<div class="modal-subcontainer">
 								<p class="modal-paragraph">${get("browserpage.bchange19")}</p>
+								<p style="font-size: 16px;overflow-wrap: anywhere;" class="modal-paragraph"><span style="font-weight: bold">${get("browserpage.bchange45")}:</span> ${data.encrypt ? true : false}</p>
 								<table>
 									${data.resources.map((resource) => `
 										<tr>
@@ -2877,6 +2908,7 @@ async function showModalAndWait(type, data) {
 								<p style="font-size: 16px;overflow-wrap: anywhere;" class="modal-paragraph"><span style="font-weight: bold">${get("browserpage.bchange30")}:</span> ${data.service}</p>
 								<p style="font-size: 16px;overflow-wrap: anywhere;" class="modal-paragraph"><span style="font-weight: bold">${get("browserpage.bchange31")}:</span> ${data.name}</p>
 								<p style="font-size: 16px;overflow-wrap: anywhere;" class="modal-paragraph"><span style="font-weight: bold">${get("browserpage.bchange32")}:</span> ${data.identifier}</p>
+								<p style="font-size: 16px;overflow-wrap: anywhere;" class="modal-paragraph"><span style="font-weight: bold">${get("browserpage.bchange45")}:</span> ${data.encrypt ? true : false}</p>
 								<div class="checkbox-row">
 									<label for="isWithFee" id="isWithFeeLabel" style="color: var(--black);">
 										${get('browserpage.bchange29')}