From a1b0f5f12a2da63bada59bbf93bda5bff4aeb7ac Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Sun, 24 Nov 2024 22:04:04 -0800
Subject: [PATCH] Delete lowlevel functions that were used by the box API and
 elsewhere and are unnecessary for nano purposes.

---
 src/lib/workers/nano25519.ts | 526 -----------------------------------
 1 file changed, 526 deletions(-)

diff --git a/src/lib/workers/nano25519.ts b/src/lib/workers/nano25519.ts
index e49325b..a31425f 100644
--- a/src/lib/workers/nano25519.ts
+++ b/src/lib/workers/nano25519.ts
@@ -55,420 +55,10 @@ import blake2b from 'blake2b'
 		return (1 & ((d - 1) >>> 8)) - 1;
 	}
 
-	function crypto_verify_16(x, xi, y, yi) {
-		return vn(x,xi,y,yi,16);
-	}
-
 	function crypto_verify_32(x, xi, y, yi) {
 		return vn(x,xi,y,yi,32);
 	}
 
-	function core_salsa20(o, p, k, c) {
-		var j0  = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
-				j1  = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
-				j2  = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
-				j3  = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
-				j4  = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
-				j5  = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
-				j6  = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
-				j7  = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
-				j8  = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
-				j9  = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
-				j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
-				j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
-				j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
-				j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
-				j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
-				j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;
-
-		var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
-				x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
-				x15 = j15, u;
-
-		for (var i = 0; i < 20; i += 2) {
-			u = x0 + x12 | 0;
-			x4 ^= u<<7 | u>>>(32-7);
-			u = x4 + x0 | 0;
-			x8 ^= u<<9 | u>>>(32-9);
-			u = x8 + x4 | 0;
-			x12 ^= u<<13 | u>>>(32-13);
-			u = x12 + x8 | 0;
-			x0 ^= u<<18 | u>>>(32-18);
-
-			u = x5 + x1 | 0;
-			x9 ^= u<<7 | u>>>(32-7);
-			u = x9 + x5 | 0;
-			x13 ^= u<<9 | u>>>(32-9);
-			u = x13 + x9 | 0;
-			x1 ^= u<<13 | u>>>(32-13);
-			u = x1 + x13 | 0;
-			x5 ^= u<<18 | u>>>(32-18);
-
-			u = x10 + x6 | 0;
-			x14 ^= u<<7 | u>>>(32-7);
-			u = x14 + x10 | 0;
-			x2 ^= u<<9 | u>>>(32-9);
-			u = x2 + x14 | 0;
-			x6 ^= u<<13 | u>>>(32-13);
-			u = x6 + x2 | 0;
-			x10 ^= u<<18 | u>>>(32-18);
-
-			u = x15 + x11 | 0;
-			x3 ^= u<<7 | u>>>(32-7);
-			u = x3 + x15 | 0;
-			x7 ^= u<<9 | u>>>(32-9);
-			u = x7 + x3 | 0;
-			x11 ^= u<<13 | u>>>(32-13);
-			u = x11 + x7 | 0;
-			x15 ^= u<<18 | u>>>(32-18);
-
-			u = x0 + x3 | 0;
-			x1 ^= u<<7 | u>>>(32-7);
-			u = x1 + x0 | 0;
-			x2 ^= u<<9 | u>>>(32-9);
-			u = x2 + x1 | 0;
-			x3 ^= u<<13 | u>>>(32-13);
-			u = x3 + x2 | 0;
-			x0 ^= u<<18 | u>>>(32-18);
-
-			u = x5 + x4 | 0;
-			x6 ^= u<<7 | u>>>(32-7);
-			u = x6 + x5 | 0;
-			x7 ^= u<<9 | u>>>(32-9);
-			u = x7 + x6 | 0;
-			x4 ^= u<<13 | u>>>(32-13);
-			u = x4 + x7 | 0;
-			x5 ^= u<<18 | u>>>(32-18);
-
-			u = x10 + x9 | 0;
-			x11 ^= u<<7 | u>>>(32-7);
-			u = x11 + x10 | 0;
-			x8 ^= u<<9 | u>>>(32-9);
-			u = x8 + x11 | 0;
-			x9 ^= u<<13 | u>>>(32-13);
-			u = x9 + x8 | 0;
-			x10 ^= u<<18 | u>>>(32-18);
-
-			u = x15 + x14 | 0;
-			x12 ^= u<<7 | u>>>(32-7);
-			u = x12 + x15 | 0;
-			x13 ^= u<<9 | u>>>(32-9);
-			u = x13 + x12 | 0;
-			x14 ^= u<<13 | u>>>(32-13);
-			u = x14 + x13 | 0;
-			x15 ^= u<<18 | u>>>(32-18);
-		}
-		 x0 =  x0 +  j0 | 0;
-		 x1 =  x1 +  j1 | 0;
-		 x2 =  x2 +  j2 | 0;
-		 x3 =  x3 +  j3 | 0;
-		 x4 =  x4 +  j4 | 0;
-		 x5 =  x5 +  j5 | 0;
-		 x6 =  x6 +  j6 | 0;
-		 x7 =  x7 +  j7 | 0;
-		 x8 =  x8 +  j8 | 0;
-		 x9 =  x9 +  j9 | 0;
-		x10 = x10 + j10 | 0;
-		x11 = x11 + j11 | 0;
-		x12 = x12 + j12 | 0;
-		x13 = x13 + j13 | 0;
-		x14 = x14 + j14 | 0;
-		x15 = x15 + j15 | 0;
-
-		o[ 0] = x0 >>>  0 & 0xff;
-		o[ 1] = x0 >>>  8 & 0xff;
-		o[ 2] = x0 >>> 16 & 0xff;
-		o[ 3] = x0 >>> 24 & 0xff;
-
-		o[ 4] = x1 >>>  0 & 0xff;
-		o[ 5] = x1 >>>  8 & 0xff;
-		o[ 6] = x1 >>> 16 & 0xff;
-		o[ 7] = x1 >>> 24 & 0xff;
-
-		o[ 8] = x2 >>>  0 & 0xff;
-		o[ 9] = x2 >>>  8 & 0xff;
-		o[10] = x2 >>> 16 & 0xff;
-		o[11] = x2 >>> 24 & 0xff;
-
-		o[12] = x3 >>>  0 & 0xff;
-		o[13] = x3 >>>  8 & 0xff;
-		o[14] = x3 >>> 16 & 0xff;
-		o[15] = x3 >>> 24 & 0xff;
-
-		o[16] = x4 >>>  0 & 0xff;
-		o[17] = x4 >>>  8 & 0xff;
-		o[18] = x4 >>> 16 & 0xff;
-		o[19] = x4 >>> 24 & 0xff;
-
-		o[20] = x5 >>>  0 & 0xff;
-		o[21] = x5 >>>  8 & 0xff;
-		o[22] = x5 >>> 16 & 0xff;
-		o[23] = x5 >>> 24 & 0xff;
-
-		o[24] = x6 >>>  0 & 0xff;
-		o[25] = x6 >>>  8 & 0xff;
-		o[26] = x6 >>> 16 & 0xff;
-		o[27] = x6 >>> 24 & 0xff;
-
-		o[28] = x7 >>>  0 & 0xff;
-		o[29] = x7 >>>  8 & 0xff;
-		o[30] = x7 >>> 16 & 0xff;
-		o[31] = x7 >>> 24 & 0xff;
-
-		o[32] = x8 >>>  0 & 0xff;
-		o[33] = x8 >>>  8 & 0xff;
-		o[34] = x8 >>> 16 & 0xff;
-		o[35] = x8 >>> 24 & 0xff;
-
-		o[36] = x9 >>>  0 & 0xff;
-		o[37] = x9 >>>  8 & 0xff;
-		o[38] = x9 >>> 16 & 0xff;
-		o[39] = x9 >>> 24 & 0xff;
-
-		o[40] = x10 >>>  0 & 0xff;
-		o[41] = x10 >>>  8 & 0xff;
-		o[42] = x10 >>> 16 & 0xff;
-		o[43] = x10 >>> 24 & 0xff;
-
-		o[44] = x11 >>>  0 & 0xff;
-		o[45] = x11 >>>  8 & 0xff;
-		o[46] = x11 >>> 16 & 0xff;
-		o[47] = x11 >>> 24 & 0xff;
-
-		o[48] = x12 >>>  0 & 0xff;
-		o[49] = x12 >>>  8 & 0xff;
-		o[50] = x12 >>> 16 & 0xff;
-		o[51] = x12 >>> 24 & 0xff;
-
-		o[52] = x13 >>>  0 & 0xff;
-		o[53] = x13 >>>  8 & 0xff;
-		o[54] = x13 >>> 16 & 0xff;
-		o[55] = x13 >>> 24 & 0xff;
-
-		o[56] = x14 >>>  0 & 0xff;
-		o[57] = x14 >>>  8 & 0xff;
-		o[58] = x14 >>> 16 & 0xff;
-		o[59] = x14 >>> 24 & 0xff;
-
-		o[60] = x15 >>>  0 & 0xff;
-		o[61] = x15 >>>  8 & 0xff;
-		o[62] = x15 >>> 16 & 0xff;
-		o[63] = x15 >>> 24 & 0xff;
-	}
-
-	function core_hsalsa20(o,p,k,c) {
-		var j0  = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
-				j1  = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
-				j2  = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
-				j3  = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
-				j4  = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
-				j5  = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
-				j6  = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
-				j7  = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
-				j8  = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
-				j9  = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
-				j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
-				j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
-				j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
-				j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
-				j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
-				j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;
-
-		var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
-				x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
-				x15 = j15, u;
-
-		for (var i = 0; i < 20; i += 2) {
-			u = x0 + x12 | 0;
-			x4 ^= u<<7 | u>>>(32-7);
-			u = x4 + x0 | 0;
-			x8 ^= u<<9 | u>>>(32-9);
-			u = x8 + x4 | 0;
-			x12 ^= u<<13 | u>>>(32-13);
-			u = x12 + x8 | 0;
-			x0 ^= u<<18 | u>>>(32-18);
-
-			u = x5 + x1 | 0;
-			x9 ^= u<<7 | u>>>(32-7);
-			u = x9 + x5 | 0;
-			x13 ^= u<<9 | u>>>(32-9);
-			u = x13 + x9 | 0;
-			x1 ^= u<<13 | u>>>(32-13);
-			u = x1 + x13 | 0;
-			x5 ^= u<<18 | u>>>(32-18);
-
-			u = x10 + x6 | 0;
-			x14 ^= u<<7 | u>>>(32-7);
-			u = x14 + x10 | 0;
-			x2 ^= u<<9 | u>>>(32-9);
-			u = x2 + x14 | 0;
-			x6 ^= u<<13 | u>>>(32-13);
-			u = x6 + x2 | 0;
-			x10 ^= u<<18 | u>>>(32-18);
-
-			u = x15 + x11 | 0;
-			x3 ^= u<<7 | u>>>(32-7);
-			u = x3 + x15 | 0;
-			x7 ^= u<<9 | u>>>(32-9);
-			u = x7 + x3 | 0;
-			x11 ^= u<<13 | u>>>(32-13);
-			u = x11 + x7 | 0;
-			x15 ^= u<<18 | u>>>(32-18);
-
-			u = x0 + x3 | 0;
-			x1 ^= u<<7 | u>>>(32-7);
-			u = x1 + x0 | 0;
-			x2 ^= u<<9 | u>>>(32-9);
-			u = x2 + x1 | 0;
-			x3 ^= u<<13 | u>>>(32-13);
-			u = x3 + x2 | 0;
-			x0 ^= u<<18 | u>>>(32-18);
-
-			u = x5 + x4 | 0;
-			x6 ^= u<<7 | u>>>(32-7);
-			u = x6 + x5 | 0;
-			x7 ^= u<<9 | u>>>(32-9);
-			u = x7 + x6 | 0;
-			x4 ^= u<<13 | u>>>(32-13);
-			u = x4 + x7 | 0;
-			x5 ^= u<<18 | u>>>(32-18);
-
-			u = x10 + x9 | 0;
-			x11 ^= u<<7 | u>>>(32-7);
-			u = x11 + x10 | 0;
-			x8 ^= u<<9 | u>>>(32-9);
-			u = x8 + x11 | 0;
-			x9 ^= u<<13 | u>>>(32-13);
-			u = x9 + x8 | 0;
-			x10 ^= u<<18 | u>>>(32-18);
-
-			u = x15 + x14 | 0;
-			x12 ^= u<<7 | u>>>(32-7);
-			u = x12 + x15 | 0;
-			x13 ^= u<<9 | u>>>(32-9);
-			u = x13 + x12 | 0;
-			x14 ^= u<<13 | u>>>(32-13);
-			u = x14 + x13 | 0;
-			x15 ^= u<<18 | u>>>(32-18);
-		}
-
-		o[ 0] = x0 >>>  0 & 0xff;
-		o[ 1] = x0 >>>  8 & 0xff;
-		o[ 2] = x0 >>> 16 & 0xff;
-		o[ 3] = x0 >>> 24 & 0xff;
-
-		o[ 4] = x5 >>>  0 & 0xff;
-		o[ 5] = x5 >>>  8 & 0xff;
-		o[ 6] = x5 >>> 16 & 0xff;
-		o[ 7] = x5 >>> 24 & 0xff;
-
-		o[ 8] = x10 >>>  0 & 0xff;
-		o[ 9] = x10 >>>  8 & 0xff;
-		o[10] = x10 >>> 16 & 0xff;
-		o[11] = x10 >>> 24 & 0xff;
-
-		o[12] = x15 >>>  0 & 0xff;
-		o[13] = x15 >>>  8 & 0xff;
-		o[14] = x15 >>> 16 & 0xff;
-		o[15] = x15 >>> 24 & 0xff;
-
-		o[16] = x6 >>>  0 & 0xff;
-		o[17] = x6 >>>  8 & 0xff;
-		o[18] = x6 >>> 16 & 0xff;
-		o[19] = x6 >>> 24 & 0xff;
-
-		o[20] = x7 >>>  0 & 0xff;
-		o[21] = x7 >>>  8 & 0xff;
-		o[22] = x7 >>> 16 & 0xff;
-		o[23] = x7 >>> 24 & 0xff;
-
-		o[24] = x8 >>>  0 & 0xff;
-		o[25] = x8 >>>  8 & 0xff;
-		o[26] = x8 >>> 16 & 0xff;
-		o[27] = x8 >>> 24 & 0xff;
-
-		o[28] = x9 >>>  0 & 0xff;
-		o[29] = x9 >>>  8 & 0xff;
-		o[30] = x9 >>> 16 & 0xff;
-		o[31] = x9 >>> 24 & 0xff;
-	}
-
-	function crypto_core_salsa20(out,inp,k,c) {
-		core_salsa20(out,inp,k,c);
-	}
-
-	function crypto_core_hsalsa20(out,inp,k,c) {
-		core_hsalsa20(out,inp,k,c);
-	}
-
-	var sigma = new Uint8Array([101, 120, 112, 97, 110, 100, 32, 51, 50, 45, 98, 121, 116, 101, 32, 107]);
-							// "expand 32-byte k"
-
-	function crypto_stream_salsa20_xor(c,cpos,m,mpos,b,n,k) {
-		var z = new Uint8Array(16), x = new Uint8Array(64);
-		var u, i;
-		for (i = 0; i < 16; i++) z[i] = 0;
-		for (i = 0; i < 8; i++) z[i] = n[i];
-		while (b >= 64) {
-			crypto_core_salsa20(x,z,k,sigma);
-			for (i = 0; i < 64; i++) c[cpos+i] = m[mpos+i] ^ x[i];
-			u = 1;
-			for (i = 8; i < 16; i++) {
-				u = u + (z[i] & 0xff) | 0;
-				z[i] = u & 0xff;
-				u >>>= 8;
-			}
-			b -= 64;
-			cpos += 64;
-			mpos += 64;
-		}
-		if (b > 0) {
-			crypto_core_salsa20(x,z,k,sigma);
-			for (i = 0; i < b; i++) c[cpos+i] = m[mpos+i] ^ x[i];
-		}
-		return 0;
-	}
-
-	function crypto_stream_salsa20(c,cpos,b,n,k) {
-		var z = new Uint8Array(16), x = new Uint8Array(64);
-		var u, i;
-		for (i = 0; i < 16; i++) z[i] = 0;
-		for (i = 0; i < 8; i++) z[i] = n[i];
-		while (b >= 64) {
-			crypto_core_salsa20(x,z,k,sigma);
-			for (i = 0; i < 64; i++) c[cpos+i] = x[i];
-			u = 1;
-			for (i = 8; i < 16; i++) {
-				u = u + (z[i] & 0xff) | 0;
-				z[i] = u & 0xff;
-				u >>>= 8;
-			}
-			b -= 64;
-			cpos += 64;
-		}
-		if (b > 0) {
-			crypto_core_salsa20(x,z,k,sigma);
-			for (i = 0; i < b; i++) c[cpos+i] = x[i];
-		}
-		return 0;
-	}
-
-	function crypto_stream(c,cpos,d,n,k) {
-		var s = new Uint8Array(32);
-		crypto_core_hsalsa20(s,n,k,sigma);
-		var sn = new Uint8Array(8);
-		for (var i = 0; i < 8; i++) sn[i] = n[i+16];
-		return crypto_stream_salsa20(c,cpos,d,sn,s);
-	}
-
-	function crypto_stream_xor(c,cpos,m,mpos,d,n,k) {
-		var s = new Uint8Array(32);
-		crypto_core_hsalsa20(s,n,k,sigma);
-		var sn = new Uint8Array(8);
-		for (var i = 0; i < 8; i++) sn[i] = n[i+16];
-		return crypto_stream_salsa20_xor(c,cpos,m,mpos,d,sn,s);
-	}
-
 	/*
 	* Port of Andrew Moon's Poly1305-donna-16. Public domain.
 	* https://github.com/floodyberry/poly1305-donna
@@ -826,39 +416,6 @@ import blake2b from 'blake2b'
 		}
 	};
 
-	function crypto_onetimeauth(out, outpos, m, mpos, n, k) {
-		var s = new poly1305(k);
-		s.update(m, mpos, n);
-		s.finish(out, outpos);
-		return 0;
-	}
-
-	function crypto_onetimeauth_verify(h, hpos, m, mpos, n, k) {
-		var x = new Uint8Array(16);
-		crypto_onetimeauth(x,0,m,mpos,n,k);
-		return crypto_verify_16(h,hpos,x,0);
-	}
-
-	function crypto_secretbox(c,m,d,n,k) {
-		var i;
-		if (d < 32) return -1;
-		crypto_stream_xor(c,0,m,0,d,n,k);
-		crypto_onetimeauth(c, 16, c, 32, d - 32, c);
-		for (i = 0; i < 16; i++) c[i] = 0;
-		return 0;
-	}
-
-	function crypto_secretbox_open(m,c,d,n,k) {
-		var i;
-		var x = new Uint8Array(32);
-		if (d < 32) return -1;
-		crypto_stream(x,0,32,n,k);
-		if (crypto_onetimeauth_verify(c, 16,c, 32,d - 32,x) !== 0) return -1;
-		crypto_stream_xor(m,0,c,0,d,n,k);
-		for (i = 0; i < 32; i++) m[i] = 0;
-		return 0;
-	}
-
 	function set25519(r, a) {
 		var i;
 		for (i = 0; i < 16; i++) r[i] = a[i]|0;
@@ -1331,89 +888,6 @@ import blake2b from 'blake2b'
 		for (a = 0; a < 16; a++) o[a] = c[a];
 	}
 
-	function crypto_scalarmult(q, n, p) {
-		var z = new Uint8Array(32);
-		var x = new Float64Array(80), r, i;
-		var a = gf(), b = gf(), c = gf(),
-				d = gf(), e = gf(), f = gf();
-		for (i = 0; i < 31; i++) z[i] = n[i];
-		z[31]=(n[31]&127)|64;
-		z[0]&=248;
-		unpack25519(x,p);
-		for (i = 0; i < 16; i++) {
-			b[i]=x[i];
-			d[i]=a[i]=c[i]=0;
-		}
-		a[0]=d[0]=1;
-		for (i=254; i>=0; --i) {
-			r=(z[i>>>3]>>>(i&7))&1;
-			sel25519(a,b,r);
-			sel25519(c,d,r);
-			A(e,a,c);
-			Z(a,a,c);
-			A(c,b,d);
-			Z(b,b,d);
-			S(d,e);
-			S(f,a);
-			M(a,c,a);
-			M(c,b,e);
-			A(e,a,c);
-			Z(a,a,c);
-			S(b,a);
-			Z(c,d,f);
-			M(a,c,_121665);
-			A(a,a,d);
-			M(c,c,a);
-			M(a,d,f);
-			M(d,b,x);
-			S(b,e);
-			sel25519(a,b,r);
-			sel25519(c,d,r);
-		}
-		for (i = 0; i < 16; i++) {
-			x[i+16]=a[i];
-			x[i+32]=c[i];
-			x[i+48]=b[i];
-			x[i+64]=d[i];
-		}
-		var x32 = x.subarray(32);
-		var x16 = x.subarray(16);
-		inv25519(x32,x32);
-		M(x16,x16,x32);
-		pack25519(q,x16);
-		return 0;
-	}
-
-	function crypto_scalarmult_base(q, n) {
-		return crypto_scalarmult(q, n, _9);
-	}
-
-	function crypto_box_keypair(y, x) {
-		randombytes(x, 32);
-		return crypto_scalarmult_base(y, x);
-	}
-
-	function crypto_box_beforenm(k, y, x) {
-		var s = new Uint8Array(32);
-		crypto_scalarmult(s, x, y);
-		return crypto_core_hsalsa20(k, _0, s, sigma);
-	}
-
-	var crypto_box_afternm = crypto_secretbox;
-	var crypto_box_open_afternm = crypto_secretbox_open;
-
-	function crypto_box(c, m, d, n, y, x) {
-		var k = new Uint8Array(32);
-		crypto_box_beforenm(k, y, x);
-		return crypto_box_afternm(c, m, d, n, k);
-	}
-
-	function crypto_box_open(m, c, d, n, y, x) {
-		var k = new Uint8Array(32);
-		crypto_box_beforenm(k, y, x);
-		return crypto_box_open_afternm(m, c, d, n, k);
-	}
-
 	var K = [
 		0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
 		0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-- 
2.34.1