From 0bf6a65d715e44cf2728738e2d74339033a702e7 Mon Sep 17 00:00:00 2001
From: alex <alex@roese.dev>
Date: Fri, 3 Feb 2023 23:35:10 +0100
Subject: [PATCH] added test for rsa

---
 rsa/rsa-test.js | 59 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 rsa/rsa-test.js

diff --git a/rsa/rsa-test.js b/rsa/rsa-test.js
new file mode 100644
index 0000000..a6b4330
--- /dev/null
+++ b/rsa/rsa-test.js
@@ -0,0 +1,59 @@
+const crypto = require('crypto')
+
+// https://stackoverflow.com/questions/11449577/why-is-base64-encode-adding-a-slash-in-the-result
+// plus and slash must be replaced with another character to ensure URL correctness. Will be replaced again on the api server to the old characters
+function base64url_encode(s) {
+    return s.replaceAll("+", "-").replaceAll("/", "_")
+}
+
+function encryptMessage(checkMessage) {
+    const { publicKey, privateKey } = crypto.generateKeyPairSync('rsa', 
+        {
+            modulusLength: 2048,
+            publicKeyEncoding: {type: 'pkcs1',format: 'pem'},
+            privateKeyEncoding: {type: 'pkcs1', format: 'pem'}
+        });
+
+    console.log(publicKey)
+
+    const b64PublicKey = Buffer.from(publicKey).toString('base64')
+
+    console.log("-------------------------")
+    console.log("PUBLIC KEY:", b64PublicKey)
+    console.log("-------------------------")
+
+    // encrypt message
+    const encryptedCheckMessage = crypto.privateEncrypt(privateKey, checkMessage)
+
+    const encryptedBase64CheckMessage = encryptedCheckMessage.toString('base64')
+    const b64CheckMessage = base64url_encode(encryptedBase64CheckMessage) 
+    console.log("ENCRYPTED B64 CHECK MESSAGE:", b64CheckMessage)
+    console.log("-------------------------")
+
+    // testing decryption
+
+    const decrB64 = Buffer.from(encryptedBase64CheckMessage, 'base64')
+
+    const decr = crypto.publicDecrypt(publicKey, decrB64)
+    console.log("DECRYPTED MESSAGE:", decr.toString())
+
+    // sending request
+
+    fetch("http://localhost:8080/v1/user/pkeys",
+    {   method: "PATCH",
+        headers: {
+            "Content-Type": "application/json",
+            "X-Authorization": "mw7RtGyI-1CZ3-ukNC-YTFp-UCZLvzw5gUQb"
+        },
+        body: JSON.stringify(
+            {
+                "PKey": b64PublicKey,
+                "CM": b64CheckMessage
+            }
+        )
+    })
+    .then((res) => res.json())
+    .then((data) => console.log(data))
+}
+
+encryptMessage("test")
\ No newline at end of file