feat: signing keys generation using node-js

utilities/signing_and_verification/node/index.js

@@ -0,0 +1,31 @@
+const nacl = require("tweetnacl");
+const { randomBytes } = require("crypto");
+
+function generateKeyPairs() {
+  // Generate signing key pair
+  const signingKeyPair = nacl.sign.keyPair();
+
+  // Generate X25519 key pair for encryption
+  const encryptionKeyPair = nacl.box.keyPair.fromSecretKey(
+    randomBytes(nacl.box.secretKeyLength)
+  );
+
+  return {
+    Signing_private_key: Buffer.from(signingKeyPair.secretKey).toString(
+      "base64"
+    ),
+    Signing_public_key: Buffer.from(signingKeyPair.publicKey).toString(
+      "base64"
+    ),
+    Encryption_Privatekey: Buffer.from(encryptionKeyPair.secretKey).toString(
+      "base64"
+    ),
+    Encryption_Publickey: Buffer.from(encryptionKeyPair.publicKey).toString(
+      "base64"
+    ),
+  };
+}
+
+// Example usage:
+const keyPairs = generateKeyPairs();
+console.log(keyPairs);

utilities/signing_and_verification/node/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "generate-key-pairs",
+  "version": "1.0.0",
+  "description": "This Node.js script generates key pairs for signing and encryption using the `tweetnacl` and `crypto` library.",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "crypto": "^1.0.1",
+    "tweetnacl": "^1.0.3"
+  }
+}

utilities/signing_and_verification/node/readme.md

@@ -0,0 +1,50 @@
+# Signing Key pair generation using Node.js
+
+This Node.js script generates key pairs for signing and encryption using the `tweetnacl` and `crypto` library.
+
+## Prerequisites
+
+Make sure you have Node.js installed on your system. If not, you can download it from [Node.js website](https://nodejs.org/).
+
+## Installation
+
+```bash
+npm i
+```
+
+## Usage
+
+- Clone the repository or copy the script into your project.
+- Run the script using the following command:
+
+```bash
+node index.js
+```
+
+## Output
+
+The script will output key pairs in base64-encoded format for signing and encryption.
+
+```bash
+{
+    "Signing_private_key": "BASE64_ENCODED_PRIVATE_KEY",
+    "Signing_public_key": "BASE64_ENCODED_PUBLIC_KEY",
+    "Encryption_Privatekey": "BASE64_ENCODED_PRIVATE_KEY",
+    "Encryption_Publickey": "BASE64_ENCODED_PUBLIC_KEY"
+}
+
+```
+
+## Example
+
+```javascript
+const keyPairs = generateKeyPairs();
+console.log(keyPairs);
+```
+
+Feel free to integrate this script into your project or use it as a reference for key pair generation in Node.js.
+
+```vbnet
+Copy and paste this markdown content into a `readme.md` file in your project repository. Modify it as needed based on your project structure and additional information you want to provide.
+
+```