public code v1

verifier/index.js

@@ -0,0 +1,41 @@
+require('dotenv').config()
+const {Express} = require("./core/Express");
+const { createSign, createPrivateKey, createPublicKey, generateKeyPairSync } = require("node:crypto");
+
+// Import keys
+const fs = require('fs');
+let keys = JSON.parse(fs.readFileSync(__dirname+"/keys.json", 'utf8'));
+privateKey = createPrivateKey({
+    key: keys.privateKey,
+    type: "pkcs8",
+    format: "pem",
+});
+
+const express = new Express(process.env.PORT_VERIFIER, "Verifier")
+express.get('/', (_, res) => {
+    res.send('Service is alive')
+});
+
+express.post('/verify', (req, res) => {
+
+    if (!req.body.token || req.body.token !== process.env.API_TOKEN_VERIFIER) {
+        res.status(401).send('Not authorized');
+    } else {
+        if (!req.body.message) {
+            res.status(403).send("Bad request");
+        } else {
+            let message = req.body.message;
+
+            const sign = createSign("SHA256");
+            sign.write(JSON.stringify(message));
+            sign.end();
+            const signature = sign.sign(privateKey, "hex");
+            message.value.verifierSign = signature;
+            message.value.verifierSignDatetime = new Date().getTime();
+
+            console.log("Event Verified with signature: " + signature);
+            res.status(200).send(message);
+        }
+    }
+});
+express.run();