add decryption, mostly

Author: kaplannCC2

src/pages/api/postDecrypted.js

@@ -2,26 +2,27 @@ import Simple from "../../contractInfo/contract-addressBdl.json";
 import Web3 from "web3";
 import axios from "axios";
 import LitJsSdk from "lit-js-sdk";
+import {Blob} from 'node:buffer';
 
 const chain = "mumbai"
 
 function b64toBlob(dataURI) {
 
-    return Buffer.from("H2gmAteQletDqRQqUMZ+N92H+ucVOXXRzqGtNzfIjBM=", "base64");
+    //return Buffer.from("H2gmAteQletDqRQqUMZ+N92H+ucVOXXRzqGtNzfIjBM=", "base64");
 
-    /* var byteString = atob();
+    var byteString = atob(dataURI);
     var ab = new ArrayBuffer(byteString.length);
     var ia = new Uint8Array(ab);
 
     for (var i = 0; i < byteString.length; i++) {
         ia[i] = byteString.charCodeAt(i);
     }
-    return new Blob([ab], { type: 'application/octet-stream' }); */
+    return new Blob([ab], { type: 'application/octet-stream' });
 
 }
 
 const litSDK = new LitJsSdk.LitNodeClient();
-litSDK.connect();
+  litSDK.connect();
 
 export default async function handler(req, res) {
   //const postId = req.query.postId;
@@ -32,7 +33,7 @@ export default async function handler(req, res) {
   );
   const contract = new web3.eth.Contract(contractAbi.abi, Simple.Simple);
 
- 
+  
 
   // create a Web3 instance
 
@@ -63,20 +64,19 @@ export default async function handler(req, res) {
 
 
 
-
-  const decrypted64 = b64toBlob("MQ1jImwxXBx7L…O/NaIvP7LID1wuuhVWIdPrQpZPZg65GDKDegDTSX+xH+6Aw==")
+  const decrypted64 = "MQ1jImwxXBx7L…O/NaIvP7LID1wuuhVWIdPrQpZPZg65GDKDegDTSX+xH+6Aw=="
 
   const blobContent = await b64toBlob(decrypted64);
 
-  const symmetricKey = await litSDK.getEncryptionKey({
+  const symmetricKey = await litSDK.current.getEncryptionKey({
     accessControlConditions,
     toDecrypt: "58700c72e794465b6882676b4726108728d717e8c645d6d4350230336c63d2aceaf577b7626f6a85069d66785d2e7b0ae22f4a871d0226ac7e93467a5b2aa1f97ede1297ed79f5d67bbfdf7624522d39230a6ebe0bebdfe98c3d29629b7006a0178b7884bc3df7c2a883b1f5ddbfa9a224ec5303b2b7023c29ed54fb8b10e26b00000000000000209b45a957a15db446f862707a6baabfce86f7d09679dea86b07df1a8fda637b9bddc861726c33362297c67414073b1db9",
-    chain,
+    chain: 'mumbai',
     authSig,
   });
 
   const decryptedString = await LitJsSdk.decryptString(
-    decrypted64,
+    b64toBlob(decrypted64),
     symmetricKey
   );
 

src/pages/decrypt.js

@@ -0,0 +1,81 @@
+
+import LitJsSdk from "lit-js-sdk";
+import { useEffect, useRef, useState } from "react";
+
+
+const litSDK = new LitJsSdk.LitNodeClient();
+litSDK.connect();
+
+
+
+const DPage = () => {
+    const litRef = useRef()
+    const [s, setS] = useState();
+
+    useEffect(() => {
+        if (litRef.current) return;
+        const litSDK = new LitJsSdk.LitNodeClient();
+        litSDK.connect();
+        litRef.current = litSDK
+
+        const dec = async () => {
+            setTimeout(async () => {
+
+            
+                const decrypted64 = 'data:application/octet-stream;base64,hPwX+Go0DRsz6HaYmlv2io3nAhfoL/JnwPYHc4WqCJc=';
+
+                const base64Response = await fetch(decrypted64);
+
+                const myBlob = await base64Response.blob();
+
+
+                const symmetricKey = await litRef.current.getEncryptionKey({
+                    accessControlConditions,
+                    toDecrypt: "58700c72e794465b6882676b4726108728d717e8c645d6d4350230336c63d2aceaf577b7626f6a85069d66785d2e7b0ae22f4a871d0226ac7e93467a5b2aa1f97ede1297ed79f5d67bbfdf7624522d39230a6ebe0bebdfe98c3d29629b7006a0178b7884bc3df7c2a883b1f5ddbfa9a224ec5303b2b7023c29ed54fb8b10e26b00000000000000209b45a957a15db446f862707a6baabfce86f7d09679dea86b07df1a8fda637b9bddc861726c33362297c67414073b1db9",
+                    chain: 'mumbai',
+                    authSig,
+                });
+
+                const decryptedString = await LitJsSdk.decryptString(
+                    myBlob,
+                    symmetricKey
+                );
+
+                console.log(12, s)
+
+                setS(decryptedString);
+
+
+            }, 1000)
+        }
+        dec()
+    }, [])
+
+    const accessControlConditions = [
+        {
+            contractAddress: '',
+            standardContractType: '',
+            chain: 'mumbai',
+            method: 'eth_getBalance',
+            parameters: [':userAddress', 'latest'],
+            returnValueTest: {
+                comparator: '>=',
+                value: '0',
+            },
+        },
+    ];
+
+    const authSig = {
+        "sig": "0x5322d8c8cbfc654e9461ecd3ca101a4f55cede22324c90cb0076538a2fe782cd20706f5abf58d678daee701f7e5ce183e73f37985006815907031513b7c768521b",
+        "derivedVia": "web3.eth.personal.sign",
+        "signedMessage": "localhost:3000 wants you to sign in with your Ethereum account:\n0x6f3c67DA2827aaE123d1379939E2E7294d62C06B\n\n\nURI: http://localhost:3000\nVersion: 1\nChain ID: 80001\nNonce: M4bD84RbTz8TD9VyA\nIssued At: 2023-03-05T08:02:30.254Z",
+        "address": "0x6f3c67da2827aae123d1379939e2e7294d62c06b"
+    }
+
+    return <div>{s}</div>
+
+
+
+}
+
+export default DPage;