diff --git a/tests/pbkdf2.test.ts b/tests/pbkdf2.test.ts
new file mode 100644
index 0000000..ac1f424
--- /dev/null
+++ b/tests/pbkdf2.test.ts
@@ -0,0 +1,64 @@
+import * as ast from 'jsr:@std/assert';
+import * as hex from 'jsr:@std/encoding/hex';
+import { describe, it } from 'jsr:@std/testing/bdd';
+
+import { encode } from "../src/utils.ts";
+
+import { gen_PBKDF2 } from '../src/pbkdf2.ts';
+
+
+
+
+
+describe('PBKDF2', function () {
+
+    describe('SHA256', function () {
+
+        // https://www.rfc-editor.org/rfc/rfc7914#section-11
+
+        const hash = 'SHA-256';
+
+        it('P=passwd, S=salt, c=1, dkLen=64', async function () {
+
+            const fn = gen_PBKDF2({ hash, iterations: 1, byte: 64 });
+
+            const buf = await fn({
+                passphrase: encode('passwd'),
+                salt: encode('salt'),
+            });
+
+            const res = `
+                55 ac 04 6e 56 e3 08 9f ec 16 91 c2 25 44 b6 05
+                f9 41 85 21 6d de 04 65 e6 8b 9d 57 c2 0d ac bc
+                49 ca 9c cc f1 79 b6 45 99 16 64 b3 9d 77 ef 31
+                7c 71 b8 45 b1 e3 0b d5 09 11 20 41 d3 a1 97 83
+            `.replaceAll(/\W+/g, '');
+
+            ast.assertStrictEquals(hex.encodeHex(buf), res);
+
+        });
+
+        it('P=Password, S=NaCl, c=80000, dkLen=64', async function () {
+
+            const fn = gen_PBKDF2({ hash, iterations: 80000, byte: 64 });
+
+            const buf = await fn({
+                passphrase: encode('Password'),
+                salt: encode('NaCl'),
+            });
+
+            const res = `
+                4d dc d8 f6 0b 98 be 21 83 0c ee 5e f2 27 01 f9
+                64 1a 44 18 d0 4c 04 14 ae ff 08 87 6b 34 ab 56
+                a1 d4 25 a1 22 58 33 54 9a db 84 1b 51 c9 b3 17
+                6a 27 2b de bb a1 d0 78 47 8f 62 b3 97 f3 3c 8d
+            `.replaceAll(/\W+/g, '');
+
+            ast.assertStrictEquals(hex.encodeHex(buf), res);
+
+        });
+
+    });
+
+});
+