From: Chris Duncan <chris@zoso.dev>
Date: Sun, 5 Jan 2025 10:46:51 +0000 (-0800)
Subject: PoW does not need to be secure, so just use basic fast PRNG.
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=421ea0ab2dad8d6a64b5b1bdd0e129394a9a3015;p=libnemo.git

PoW does not need to be secure, so just use basic fast PRNG.
---

diff --git a/src/lib/workers/powgpu.ts b/src/lib/workers/powgpu.ts
index deb688e..6ade30d 100644
--- a/src/lib/workers/powgpu.ts
+++ b/src/lib/workers/powgpu.ts
@@ -315,7 +315,7 @@ export class PowGpu extends WorkerInterface {
 			const uint32 = hashHex.slice(i, i + 8)
 			uboView.setUint32(i / 2, parseInt(uint32, 16))
 		}
-		const random = crypto.getRandomValues(new Uint32Array(1))[0]
+		const random = Math.floor((Math.random() * 0xffffffff))
 		uboView.setUint32(32, random, true)
 		uboView.setUint32(36, threshold, true)
 		PowGpu.#device.queue.writeBuffer(PowGpu.#uboBuffer, 0, uboView)