From 9c8a9317721c2de6d7501f976f88c796524e56bd Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@codecow.com>
Date: Fri, 25 Sep 2026 09:48:13 -0700
Subject: [PATCH] Add custom message byte length to speed test page.

---
 test/index.html | 40 ++++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/test/index.html b/test/index.html
index 9dafca9..3ab659e 100644
--- a/test/index.html
+++ b/test/index.html
@@ -49,6 +49,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
 		if (nano25519 && NANO_ORG_VECTOR && PYTHON_ED25519_BLAKE2B_VECTORS) {
 			console.info('Test vectors loaded')
 			document.getElementById('btnStartTest').disabled = false
+			document.getElementById('btnStartTest').focus()
 			document.getElementById('status').innerHTML = `READY`
 		}
 
@@ -114,9 +115,11 @@ SPDX-License-Identifier: GPL-3.0-or-later
 		}
 
 		/** @type { { bytes: Uint8Array, hex: string } } */
-		const rand32 = {
-			get bytes() { return crypto.getRandomValues(new Uint8Array(32)) },
-			get hex() { return b2a(this.bytes) }
+		const rand = (length = 32) => {
+			return {
+				get bytes() { return crypto.getRandomValues(new Uint8Array(length)) },
+				get hex() { return b2a(this.bytes) }
+			}
 		}
 
 		/** @type { (hex: string) => Uint8Array } */
@@ -223,7 +226,13 @@ SPDX-License-Identifier: GPL-3.0-or-later
 		 * @param {number} runs
 		 * @returns {void}
 		 */
-		export async function test(api, size, runs) {
+		export async function test(api, bytes, size, runs) {
+			if (typeof bytes !== 'number' || bytes < 1) {
+				bytes = 1
+			}
+			if (bytes > 65536) {
+				bytes = 65536
+			}
 			if (typeof size !== 'number' || size < 1) {
 				size = 1
 			}
@@ -351,7 +360,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
 			passes += +test
 			failures += +!test
 
-			result = nano25519.verify(NANO_ORG_VECTOR.signature, rand32.hex, NANO_ORG_VECTOR.publicKey)
+			result = nano25519.verify(NANO_ORG_VECTOR.signature, rand(32).hex, NANO_ORG_VECTOR.publicKey)
 			console.log(result)
 			test = result === false
 			check(`verify() output for random block hash`, test)
@@ -408,11 +417,11 @@ SPDX-License-Identifier: GPL-3.0-or-later
 
 					try {
 						if (api === 'nano25519 with bulk block verification') {
-							privateKey = rand32.bytes
+							privateKey = rand(32).bytes
 							publicKey = derive(privateKey, 'nano25519')
 							const blocks = []
 							for (let b = 0; b < nano25519.constants.MAX_VERIFY_BLOCKS; b++) {
-								message = rand32.bytes
+								message = rand(32).bytes
 								signature = sign(message, privateKey, publicKey, 'nano25519')
 								blocks[b] = { hash: message, signature }
 							}
@@ -429,8 +438,8 @@ SPDX-License-Identifier: GPL-3.0-or-later
 							signTimes[i].push(0)
 							verifyTimes[i].push(duration)
 						} else {
-							privateKey = rand32.bytes
-							message = crypto.getRandomValues(new Uint8Array(32768))
+							privateKey = rand(32).bytes
+							message = rand(bytes).bytes
 
 							start = performance.now()
 							publicKey = derive(privateKey, api)
@@ -484,13 +493,17 @@ SPDX-License-Identifier: GPL-3.0-or-later
 		}
 
 		function startValidation(event) {
+			const bytes = document.getElementById('bytes')
 			const size = document.getElementById('size')
 			const api = document.getElementById('api')?.value
 			if (api === 'nano25519 with bulk block verification') {
+				bytes.value = nano25519.constants.BLOCKHASH_BYTELENGTH
+				bytes.disabled = true
 				size.value = nano25519.constants.MAX_VERIFY_BLOCKS
 				size.dataset.value = 1
 				size.disabled = true
 			} else {
+				bytes.disabled = false
 				size.value = 100
 				size.dataset.value = 0
 				size.disabled = false
@@ -517,9 +530,10 @@ SPDX-License-Identifier: GPL-3.0-or-later
 		function startTest(event) {
 			event.target.disabled = true
 			const api = document.getElementById('api')
+			const bytes = document.getElementById('bytes')
 			const size = document.getElementById('size')
 			const runs = document.getElementById('runs')
-			test(api.value, +size.dataset.value ? 1 : +size.value, +runs.value)
+			test(api.value, +bytes.value, +size.dataset.value ? 1 : +size.value, +runs.value)
 				.then(() => {
 					event.target.disabled = false
 				})
@@ -579,10 +593,12 @@ SPDX-License-Identifier: GPL-3.0-or-later
 			<option>TweetNaCl.js</option>
 		</select>
 	</span>
+	<label for="bytes">Message Bytes</label>
+	<input id="bytes" type="number" value="32" min="1" max="65536" />
 	<label for="runs">Test Runs</label>
-	<input id="runs" type="number" value="100" min="1" autofocus />
+	<input id="runs" type="number" value="100" min="1" />
 	<label for="size">Test Size</label>
-	<input id="size" type="number" value="100" min="1" autofocus />
+	<input id="size" type="number" value="100" min="1" />
 	<button id="btnStartTest" disabled>Go</button>
 	<hr />
 	<h3 id="status">LOADING</h3>
-- 
2.52.0