From: Chris Duncan <chris@zoso.dev>
Date: Sat, 23 Nov 2024 08:40:55 +0000 (-0800)
Subject: Document source and reason for changes.
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=d0891a3e2b374b6fb8c265feb5a0f7e1982c3160;p=libnemo.git

Document source and reason for changes.
---

diff --git a/src/lib/workers/nano25519.ts b/src/lib/workers/nano25519.ts
index fcc526e..dcf6560 100644
--- a/src/lib/workers/nano25519.ts
+++ b/src/lib/workers/nano25519.ts
@@ -1,3 +1,8 @@
+// SPDX-FileCopyrightText: 2024 Chris Duncan <chris@zoso.dev>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import blake2b from 'blake2b'
+
 (function(nacl) {
 	'use strict';
 	
@@ -6,6 +11,12 @@
 	//
 	// Implementation derived from TweetNaCl version 20140427.
 	// See for details: http://tweetnacl.cr.yp.to/
+	//
+	// Modified in 2024 by Chris Duncan to hash secret key to public key using
+	// BLAKE2b instead of SHA-512 as specified in the documentation for Nano
+	// cryptocurrency.
+	// See for details: https://docs.nano.org/integration-guides/the-basics/
+	// Original source commit: https://github.com/dchest/tweetnacl-js/blob/71df1d6a1d78236ca3e9f6c788786e21f5a651a6/nacl-fast.js
 	
 	var gf = function(init) {
 		var i, r = new Float64Array(16);