feat(crypto): implement generateKey() and sign() (#9614)

Co-authored-by: Luca Casonato <hello@lcas.dev>
Co-authored-by: Bartek Iwańczuk <biwanczuk@gmail.com>

1 files changed, 58 insertions, 0 deletions

diff --git a/cli/tests/unit/webcrypto_test.ts b/cli/tests/unit/webcrypto_test.ts
new file mode 100644
index 000000000..4361d3a10
--- /dev/null
+++ b/cli/tests/unit/webcrypto_test.ts
@@ -0,0 +1,58 @@
+import { assert, assertEquals, unitTest } from "./test_util.ts";
+
+unitTest(async function testGenerateRSAKey() {
+  const subtle = window.crypto.subtle;
+  assert(subtle);
+
+  const keyPair = await subtle.generateKey(
+    {
+      name: "RSA-PSS",
+      modulusLength: 2048,
+      publicExponent: new Uint8Array([1, 0, 1]),
+      hash: "SHA-256",
+    },
+    true,
+    ["sign", "verify"],
+  );
+
+  assert(keyPair.privateKey);
+  assert(keyPair.publicKey);
+  assertEquals(keyPair.privateKey.extractable, true);
+  assert(keyPair.privateKey.usages.includes("sign"));
+});
+
+unitTest(async function testGenerateHMACKey() {
+  const key = await window.crypto.subtle.generateKey(
+    {
+      name: "HMAC",
+      hash: "SHA-512",
+    },
+    true,
+    ["sign", "verify"],
+  );
+
+  assert(key);
+  assertEquals(key.extractable, true);
+  assert(key.usages.includes("sign"));
+});
+
+unitTest(async function testSignECDSA() {
+  const key = await window.crypto.subtle.generateKey(
+    {
+      name: "ECDSA",
+      namedCurve: "P-384",
+    },
+    true,
+    ["sign", "verify"],
+  );
+
+  const encoder = new TextEncoder();
+  const encoded = encoder.encode("Hello, World!");
+  const signature = await window.crypto.subtle.sign(
+    { name: "ECDSA", hash: "SHA-384" },
+    key.privateKey,
+    encoded,
+  );
+
+  assert(signature);
+});