From: Chris Duncan <chris@zoso.dev>
Date: Sat, 29 Aug 2026 06:33:32 +0000 (-0700)
Subject: Fix buffer slicing when normalizing.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=dc026bf9a285d8ba3f6a6aa19ed36f95cb3d6d52;p=nano25519.git

Fix buffer slicing when normalizing.
---

diff --git a/src/lib/wasm.ts b/src/lib/wasm.ts
index f08d3d1..37bdbb4 100644
--- a/src/lib/wasm.ts
+++ b/src/lib/wasm.ts
@@ -124,10 +124,13 @@ export function normalize (name: string, byteLengthMin: number, byteLengthMax: n
 		return new Uint8Array(value.match(/[0-9a-f]{2}/gi)?.map(b => parseInt(b, 16)) || [])
 	}
 
-	if (!(value instanceof ArrayBuffer || value instanceof Uint8Array)) {
+	if (value instanceof ArrayBuffer) {
+		value = new Uint8Array(value)
+	}
+	if (!(value instanceof Uint8Array)) {
 		throw new TypeError(`${name} must be Uint8Array or ArrayBuffer`)
 	}
-	const bytes = new Uint8Array(value.slice())
+	const bytes = value.slice()
 	if (bytes.byteLength < byteLengthMin) {
 		throw new TypeError(`${name} must be at least ${byteLengthMin} bytes`)
 	}