From 295dec2aafbe7c84abdcd6ca846b1dd0471dfd33 Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Sun, 3 Aug 2025 14:57:20 -0700
Subject: [PATCH] Replace set method with builtin typed array methods.

---
 src/lib/nano-nacl.ts | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/src/lib/nano-nacl.ts b/src/lib/nano-nacl.ts
index ef9dc4d..e16ea3a 100644
--- a/src/lib/nano-nacl.ts
+++ b/src/lib/nano-nacl.ts
@@ -54,12 +54,6 @@ export class NanoNaCl {
 		return this.vn(x, xi, y, yi, 32)
 	}
 
-	static set25519 (r: Float64Array, a: Float64Array): void {
-		for (let i = 0; i < 16; i++) {
-			r[i] = a[i] | 0
-		}
-	}
-
 	static car25519 (o: Float64Array): void {
 		let v, c = 1
 		for (let i = 0; i < 16; i++) {
@@ -295,10 +289,10 @@ export class NanoNaCl {
 	}
 
 	static scalarmult (p: Float64Array[], q: Float64Array[], s: Uint8Array): void {
-		this.set25519(p[0], this.gf())
-		this.set25519(p[1], this.gf([1]))
-		this.set25519(p[2], this.gf([1]))
-		this.set25519(p[3], this.gf())
+		p[0].fill(0)
+		p[1].fill(0).set([1], 0)
+		p[2].fill(0).set([1], 0)
+		p[3].fill(0)
 		for (let i = 255; i >= 0; --i) {
 			const b = (s[(i / 8) | 0] >> (i & 7)) & 1
 			this.cswap(p, q, b)
@@ -310,10 +304,10 @@ export class NanoNaCl {
 
 	static scalarbase (p: Float64Array[], s: Uint8Array): void {
 		const q: Float64Array[] = this.gf4()
-		this.set25519(q[0], this.X)
-		this.set25519(q[1], this.Y)
-		this.set25519(q[2], this.gf([1]))
-		this.set25519(q[3], this.XY)
+		q[0].set(this.X, 0)
+		q[1].set(this.Y, 0)
+		q[2].set([1], 0)
+		q[3].set(this.XY, 0)
 		this.scalarmult(p, q, s)
 	}
 
@@ -398,7 +392,7 @@ export class NanoNaCl {
 		const den4: Float64Array = this.gf()
 		const den6: Float64Array = this.gf()
 
-		this.set25519(r[2], this.gf([1]))
+		r[2].fill(0).set([1], 0)
 		this.unpack25519(r[1], p)
 		this.Square(num, r[1])
 		this.Multiply(den, num, this.D)
@@ -426,7 +420,9 @@ export class NanoNaCl {
 
 		if (this.neq25519(chk, num)) return -1
 
-		if (this.par25519(r[0]) === (p[31] >> 7)) this.Subtract(r[0], this.gf(), r[0])
+		if (this.par25519(r[0]) === (p[31] >> 7)) {
+			this.Subtract(r[0], this.gf(), r[0])
+		}
 		this.Multiply(r[3], r[0], r[1])
 		return 0
 	}
-- 
2.47.3