From: Chris Duncan <chris@zoso.dev>
Date: Sat, 22 Aug 2026 06:16:41 +0000 (-0700)
Subject: Reuse constant for message size to avoid bugs.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=57082cc2eba151b49a0c2f44882156aadbc7f3e8;p=nano25519.git

Reuse constant for message size to avoid bugs.
---

diff --git a/src/assembly/index.ts b/src/assembly/index.ts
index 9184811..8d1c8d0 100644
--- a/src/assembly/index.ts
+++ b/src/assembly/index.ts
@@ -79,7 +79,7 @@ const sign_sig = new StaticArray<u8>(SIGNATURE_BYTES)
  * @param {i32} mlen Byte length of message to be signed, up to 32768
  */
 export function sign (mlen: i32): void {
-	if (mlen < 0 || mlen > 32768) throw new Error()
+	if (mlen < 0 || mlen > MESSAGE_BUFFER_BYTES) throw new Error()
 
 	// Clear local buffers
 	sign_msg.fill(0)
@@ -126,7 +126,7 @@ const verify_sig = new StaticArray<u8>(SIGNATURE_BYTES)
  * @returns {boolean} True if message was signed by public key's private key
  */
 export function verify (mlen: i32): i32 {
-	if (mlen < 0 || mlen > 32768) throw new Error('invalid message length')
+	if (mlen < 0 || mlen > MESSAGE_BUFFER_BYTES) throw new Error('invalid message length')
 
 	// Clear local buffers
 	verify_msg.fill(0)