From 2cc348687a54bbabd493065d2f62edc0b993c4e0 Mon Sep 17 00:00:00 2001
From: Justin Lin <wancat@wancat.cc>
Date: Mon, 14 Oct 2024 10:53:15 +0800
Subject: [PATCH] feat: generate key pair function

---
 server/src/utils/crypto.ts        | 20 ++++++++++++++++++++
 server/tests/utils/crypto.test.ts |  9 +++++++++
 2 files changed, 29 insertions(+)
 create mode 100644 server/src/utils/crypto.ts
 create mode 100644 server/tests/utils/crypto.test.ts

diff --git a/server/src/utils/crypto.ts b/server/src/utils/crypto.ts
new file mode 100644
index 0000000..ed452e8
--- /dev/null
+++ b/server/src/utils/crypto.ts
@@ -0,0 +1,20 @@
+import { generateKeyPairSync } from 'crypto'
+
+type KeyPair = {
+  privateKey: string
+  publicKey: string
+}
+
+export function generateKeyPair(): KeyPair {
+  const { privateKey, publicKey } = generateKeyPairSync('ed25519', {
+    publicKeyEncoding: {
+      type: 'spki',
+      format: 'pem',
+    },
+    privateKeyEncoding: {
+      type: 'pkcs8',
+      format: 'pem',
+    },
+  })
+  return { privateKey, publicKey }
+}
diff --git a/server/tests/utils/crypto.test.ts b/server/tests/utils/crypto.test.ts
new file mode 100644
index 0000000..4c4b17f
--- /dev/null
+++ b/server/tests/utils/crypto.test.ts
@@ -0,0 +1,9 @@
+import { generateKeyPair } from '../../src/utils/crypto'
+
+describe('generateKeyPair', () => {
+  it('should generate a key pair', () => {
+    const keyPair = generateKeyPair()
+    expect(keyPair).toHaveProperty('privateKey')
+    expect(keyPair).toHaveProperty('publicKey')
+  })
+})