From 9e917690faeaccdff79ac7affe96c7a9ac52a37a Mon Sep 17 00:00:00 2001
From: Chris Duncan <chris@zoso.dev>
Date: Sun, 24 Nov 2024 21:28:23 -0800
Subject: [PATCH] Delete previously exported box function and related functions
 made irrelevant.

---
 src/lib/workers/nano25519.ts | 629 ++++++++++++++++-------------------
 1 file changed, 290 insertions(+), 339 deletions(-)

diff --git a/src/lib/workers/nano25519.ts b/src/lib/workers/nano25519.ts
index e94bb54..6e6787e 100644
--- a/src/lib/workers/nano25519.ts
+++ b/src/lib/workers/nano25519.ts
@@ -4,7 +4,7 @@
 import blake2b from 'blake2b'
 
 	'use strict';
-	
+
 	// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri.
 	// Public domain.
 	//
@@ -16,19 +16,19 @@ import blake2b from 'blake2b'
 	// 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?: any) {
 		var i, r = new Float64Array(16);
 		if (init) for (i = 0; i < init.length; i++) r[i] = init[i];
 		return r;
 	};
-	
+
 	//  Pluggable, initialized in high-level API below.
 	var randombytes = function(/* x, n */) { throw new Error('no PRNG'); };
-	
+
 	var _0 = new Uint8Array(16);
 	var _9 = new Uint8Array(32); _9[0] = 9;
-	
+
 	var gf0 = gf(),
 			gf1 = gf([1]),
 			_121665 = gf([0xdb41, 1]),
@@ -37,7 +37,7 @@ import blake2b from 'blake2b'
 			X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]),
 			Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]),
 			I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]);
-	
+
 	function ts64(x, i, h, l) {
 		x[i]   = (h >> 24) & 0xff;
 		x[i+1] = (h >> 16) & 0xff;
@@ -48,21 +48,21 @@ import blake2b from 'blake2b'
 		x[i+6] = (l >>  8)  & 0xff;
 		x[i+7] = l & 0xff;
 	}
-	
+
 	function vn(x, xi, y, yi, n) {
 		var i,d = 0;
 		for (i = 0; i < n; i++) d |= x[xi+i]^y[yi+i];
 		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,
@@ -80,11 +80,11 @@ import blake2b from 'blake2b'
 				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);
@@ -94,7 +94,7 @@ import blake2b from 'blake2b'
 			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;
@@ -103,7 +103,7 @@ import blake2b from 'blake2b'
 			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;
@@ -112,7 +112,7 @@ import blake2b from 'blake2b'
 			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;
@@ -121,7 +121,7 @@ import blake2b from 'blake2b'
 			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;
@@ -130,7 +130,7 @@ import blake2b from 'blake2b'
 			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;
@@ -139,7 +139,7 @@ import blake2b from 'blake2b'
 			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;
@@ -148,7 +148,7 @@ import blake2b from 'blake2b'
 			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;
@@ -174,88 +174,88 @@ import blake2b from 'blake2b'
 		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,
@@ -273,11 +273,11 @@ import blake2b from 'blake2b'
 				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);
@@ -287,7 +287,7 @@ import blake2b from 'blake2b'
 			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;
@@ -296,7 +296,7 @@ import blake2b from 'blake2b'
 			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;
@@ -305,7 +305,7 @@ import blake2b from 'blake2b'
 			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;
@@ -314,7 +314,7 @@ import blake2b from 'blake2b'
 			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;
@@ -323,7 +323,7 @@ import blake2b from 'blake2b'
 			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;
@@ -332,7 +332,7 @@ import blake2b from 'blake2b'
 			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;
@@ -341,7 +341,7 @@ import blake2b from 'blake2b'
 			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;
@@ -351,59 +351,59 @@ import blake2b from 'blake2b'
 			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;
@@ -428,7 +428,7 @@ import blake2b from 'blake2b'
 		}
 		return 0;
 	}
-	
+
 	function crypto_stream_salsa20(c,cpos,b,n,k) {
 		var z = new Uint8Array(16), x = new Uint8Array(64);
 		var u, i;
@@ -452,7 +452,7 @@ import blake2b from 'blake2b'
 		}
 		return 0;
 	}
-	
+
 	function crypto_stream(c,cpos,d,n,k) {
 		var s = new Uint8Array(32);
 		crypto_core_hsalsa20(s,n,k,sigma);
@@ -460,7 +460,7 @@ import blake2b from 'blake2b'
 		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);
@@ -468,12 +468,12 @@ import blake2b from 'blake2b'
 		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
 	*/
-	
+
 	var poly1305 = function(key) {
 		this.buffer = new Uint8Array(16);
 		this.r = new Uint16Array(10);
@@ -481,9 +481,9 @@ import blake2b from 'blake2b'
 		this.pad = new Uint16Array(8);
 		this.leftover = 0;
 		this.fin = 0;
-	
+
 		var t0, t1, t2, t3, t4, t5, t6, t7;
-	
+
 		t0 = key[ 0] & 0xff | (key[ 1] & 0xff) << 8; this.r[0] = ( t0                     ) & 0x1fff;
 		t1 = key[ 2] & 0xff | (key[ 3] & 0xff) << 8; this.r[1] = ((t0 >>> 13) | (t1 <<  3)) & 0x1fff;
 		t2 = key[ 4] & 0xff | (key[ 5] & 0xff) << 8; this.r[2] = ((t1 >>> 10) | (t2 <<  6)) & 0x1f03;
@@ -494,7 +494,7 @@ import blake2b from 'blake2b'
 		t6 = key[12] & 0xff | (key[13] & 0xff) << 8; this.r[7] = ((t5 >>> 11) | (t6 <<  5)) & 0x1f81;
 		t7 = key[14] & 0xff | (key[15] & 0xff) << 8; this.r[8] = ((t6 >>>  8) | (t7 <<  8)) & 0x1fff;
 		this.r[9] = ((t7 >>>  5)) & 0x007f;
-	
+
 		this.pad[0] = key[16] & 0xff | (key[17] & 0xff) << 8;
 		this.pad[1] = key[18] & 0xff | (key[19] & 0xff) << 8;
 		this.pad[2] = key[20] & 0xff | (key[21] & 0xff) << 8;
@@ -504,12 +504,12 @@ import blake2b from 'blake2b'
 		this.pad[6] = key[28] & 0xff | (key[29] & 0xff) << 8;
 		this.pad[7] = key[30] & 0xff | (key[31] & 0xff) << 8;
 	};
-	
+
 	poly1305.prototype.blocks = function(m, mpos, bytes) {
 		var hibit = this.fin ? 0 : (1 << 11);
 		var t0, t1, t2, t3, t4, t5, t6, t7, c;
 		var d0, d1, d2, d3, d4, d5, d6, d7, d8, d9;
-	
+
 		var h0 = this.h[0],
 				h1 = this.h[1],
 				h2 = this.h[2],
@@ -520,7 +520,7 @@ import blake2b from 'blake2b'
 				h7 = this.h[7],
 				h8 = this.h[8],
 				h9 = this.h[9];
-	
+
 		var r0 = this.r[0],
 				r1 = this.r[1],
 				r2 = this.r[2],
@@ -531,7 +531,7 @@ import blake2b from 'blake2b'
 				r7 = this.r[7],
 				r8 = this.r[8],
 				r9 = this.r[9];
-	
+
 		while (bytes >= 16) {
 			t0 = m[mpos+ 0] & 0xff | (m[mpos+ 1] & 0xff) << 8; h0 += ( t0                     ) & 0x1fff;
 			t1 = m[mpos+ 2] & 0xff | (m[mpos+ 3] & 0xff) << 8; h1 += ((t0 >>> 13) | (t1 <<  3)) & 0x1fff;
@@ -543,9 +543,9 @@ import blake2b from 'blake2b'
 			t6 = m[mpos+12] & 0xff | (m[mpos+13] & 0xff) << 8; h7 += ((t5 >>> 11) | (t6 <<  5)) & 0x1fff;
 			t7 = m[mpos+14] & 0xff | (m[mpos+15] & 0xff) << 8; h8 += ((t6 >>>  8) | (t7 <<  8)) & 0x1fff;
 			h9 += ((t7 >>> 5)) | hibit;
-	
+
 			c = 0;
-	
+
 			d0 = c;
 			d0 += h0 * r0;
 			d0 += h1 * (5 * r9);
@@ -559,7 +559,7 @@ import blake2b from 'blake2b'
 			d0 += h8 * (5 * r2);
 			d0 += h9 * (5 * r1);
 			c += (d0 >>> 13); d0 &= 0x1fff;
-	
+
 			d1 = c;
 			d1 += h0 * r1;
 			d1 += h1 * r0;
@@ -573,7 +573,7 @@ import blake2b from 'blake2b'
 			d1 += h8 * (5 * r3);
 			d1 += h9 * (5 * r2);
 			c += (d1 >>> 13); d1 &= 0x1fff;
-	
+
 			d2 = c;
 			d2 += h0 * r2;
 			d2 += h1 * r1;
@@ -587,7 +587,7 @@ import blake2b from 'blake2b'
 			d2 += h8 * (5 * r4);
 			d2 += h9 * (5 * r3);
 			c += (d2 >>> 13); d2 &= 0x1fff;
-	
+
 			d3 = c;
 			d3 += h0 * r3;
 			d3 += h1 * r2;
@@ -601,7 +601,7 @@ import blake2b from 'blake2b'
 			d3 += h8 * (5 * r5);
 			d3 += h9 * (5 * r4);
 			c += (d3 >>> 13); d3 &= 0x1fff;
-	
+
 			d4 = c;
 			d4 += h0 * r4;
 			d4 += h1 * r3;
@@ -615,7 +615,7 @@ import blake2b from 'blake2b'
 			d4 += h8 * (5 * r6);
 			d4 += h9 * (5 * r5);
 			c += (d4 >>> 13); d4 &= 0x1fff;
-	
+
 			d5 = c;
 			d5 += h0 * r5;
 			d5 += h1 * r4;
@@ -629,7 +629,7 @@ import blake2b from 'blake2b'
 			d5 += h8 * (5 * r7);
 			d5 += h9 * (5 * r6);
 			c += (d5 >>> 13); d5 &= 0x1fff;
-	
+
 			d6 = c;
 			d6 += h0 * r6;
 			d6 += h1 * r5;
@@ -643,7 +643,7 @@ import blake2b from 'blake2b'
 			d6 += h8 * (5 * r8);
 			d6 += h9 * (5 * r7);
 			c += (d6 >>> 13); d6 &= 0x1fff;
-	
+
 			d7 = c;
 			d7 += h0 * r7;
 			d7 += h1 * r6;
@@ -657,7 +657,7 @@ import blake2b from 'blake2b'
 			d7 += h8 * (5 * r9);
 			d7 += h9 * (5 * r8);
 			c += (d7 >>> 13); d7 &= 0x1fff;
-	
+
 			d8 = c;
 			d8 += h0 * r8;
 			d8 += h1 * r7;
@@ -671,7 +671,7 @@ import blake2b from 'blake2b'
 			d8 += h8 * r0;
 			d8 += h9 * (5 * r9);
 			c += (d8 >>> 13); d8 &= 0x1fff;
-	
+
 			d9 = c;
 			d9 += h0 * r9;
 			d9 += h1 * r8;
@@ -685,13 +685,13 @@ import blake2b from 'blake2b'
 			d9 += h8 * r1;
 			d9 += h9 * r0;
 			c += (d9 >>> 13); d9 &= 0x1fff;
-	
+
 			c = (((c << 2) + c)) | 0;
 			c = (c + d0) | 0;
 			d0 = c & 0x1fff;
 			c = (c >>> 13);
 			d1 += c;
-	
+
 			h0 = d0;
 			h1 = d1;
 			h2 = d2;
@@ -702,7 +702,7 @@ import blake2b from 'blake2b'
 			h7 = d7;
 			h8 = d8;
 			h9 = d9;
-	
+
 			mpos += 16;
 			bytes -= 16;
 		}
@@ -717,11 +717,11 @@ import blake2b from 'blake2b'
 		this.h[8] = h8;
 		this.h[9] = h9;
 	};
-	
+
 	poly1305.prototype.finish = function(mac, macpos) {
 		var g = new Uint16Array(10);
 		var c, mask, f, i;
-	
+
 		if (this.leftover) {
 			i = this.leftover;
 			this.buffer[i++] = 1;
@@ -729,7 +729,7 @@ import blake2b from 'blake2b'
 			this.fin = 1;
 			this.blocks(this.buffer, 0, 16);
 		}
-	
+
 		c = this.h[1] >>> 13;
 		this.h[1] &= 0x1fff;
 		for (i = 2; i < 10; i++) {
@@ -744,7 +744,7 @@ import blake2b from 'blake2b'
 		c = this.h[1] >>> 13;
 		this.h[1] &= 0x1fff;
 		this.h[2] += c;
-	
+
 		g[0] = this.h[0] + 5;
 		c = g[0] >>> 13;
 		g[0] &= 0x1fff;
@@ -754,12 +754,12 @@ import blake2b from 'blake2b'
 			g[i] &= 0x1fff;
 		}
 		g[9] -= (1 << 13);
-	
+
 		mask = (c ^ 1) - 1;
 		for (i = 0; i < 10; i++) g[i] &= mask;
 		mask = ~mask;
 		for (i = 0; i < 10; i++) this.h[i] = (this.h[i] & mask) | g[i];
-	
+
 		this.h[0] = ((this.h[0]       ) | (this.h[1] << 13)                    ) & 0xffff;
 		this.h[1] = ((this.h[1] >>>  3) | (this.h[2] << 10)                    ) & 0xffff;
 		this.h[2] = ((this.h[2] >>>  6) | (this.h[3] <<  7)                    ) & 0xffff;
@@ -768,14 +768,14 @@ import blake2b from 'blake2b'
 		this.h[5] = ((this.h[6] >>>  2) | (this.h[7] << 11)                    ) & 0xffff;
 		this.h[6] = ((this.h[7] >>>  5) | (this.h[8] <<  8)                    ) & 0xffff;
 		this.h[7] = ((this.h[8] >>>  8) | (this.h[9] <<  5)                    ) & 0xffff;
-	
+
 		f = this.h[0] + this.pad[0];
 		this.h[0] = f & 0xffff;
 		for (i = 1; i < 8; i++) {
 			f = (((this.h[i] + this.pad[i]) | 0) + (f >>> 16)) | 0;
 			this.h[i] = f & 0xffff;
 		}
-	
+
 		mac[macpos+ 0] = (this.h[0] >>> 0) & 0xff;
 		mac[macpos+ 1] = (this.h[0] >>> 8) & 0xff;
 		mac[macpos+ 2] = (this.h[1] >>> 0) & 0xff;
@@ -793,10 +793,10 @@ import blake2b from 'blake2b'
 		mac[macpos+14] = (this.h[7] >>> 0) & 0xff;
 		mac[macpos+15] = (this.h[7] >>> 8) & 0xff;
 	};
-	
+
 	poly1305.prototype.update = function(m, mpos, bytes) {
 		var i, want;
-	
+
 		if (this.leftover) {
 			want = (16 - this.leftover);
 			if (want > bytes)
@@ -811,34 +811,34 @@ import blake2b from 'blake2b'
 			this.blocks(this.buffer, 0, 16);
 			this.leftover = 0;
 		}
-	
+
 		if (bytes >= 16) {
 			want = bytes - (bytes % 16);
 			this.blocks(m, mpos, want);
 			mpos += want;
 			bytes -= want;
 		}
-	
+
 		if (bytes) {
 			for (i = 0; i < bytes; i++)
 				this.buffer[this.leftover + i] = m[mpos+i];
 			this.leftover += bytes;
 		}
 	};
-	
+
 	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;
@@ -847,7 +847,7 @@ import blake2b from 'blake2b'
 		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);
@@ -858,12 +858,12 @@ import blake2b from 'blake2b'
 		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;
 	}
-	
+
 	function car25519(o) {
 		var i, v, c = 1;
 		for (i = 0; i < 16; i++) {
@@ -873,7 +873,7 @@ import blake2b from 'blake2b'
 		}
 		o[0] += c-1 + 37 * (c-1);
 	}
-	
+
 	function sel25519(p, q, b) {
 		var t, c = ~(b-1);
 		for (var i = 0; i < 16; i++) {
@@ -882,7 +882,7 @@ import blake2b from 'blake2b'
 			q[i] ^= t;
 		}
 	}
-	
+
 	function pack25519(o, n) {
 		var i, j, b;
 		var m = gf(), t = gf();
@@ -906,34 +906,34 @@ import blake2b from 'blake2b'
 			o[2*i+1] = t[i]>>8;
 		}
 	}
-	
+
 	function neq25519(a, b) {
 		var c = new Uint8Array(32), d = new Uint8Array(32);
 		pack25519(c, a);
 		pack25519(d, b);
 		return crypto_verify_32(c, 0, d, 0);
 	}
-	
+
 	function par25519(a) {
 		var d = new Uint8Array(32);
 		pack25519(d, a);
 		return d[0] & 1;
 	}
-	
+
 	function unpack25519(o, n) {
 		var i;
 		for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8);
 		o[15] &= 0x7fff;
 	}
-	
+
 	function A(o, a, b) {
 		for (var i = 0; i < 16; i++) o[i] = a[i] + b[i];
 	}
-	
+
 	function Z(o, a, b) {
 		for (var i = 0; i < 16; i++) o[i] = a[i] - b[i];
 	}
-	
+
 	function M(o, a, b) {
 		var v, c,
 			 t0 = 0,  t1 = 0,  t2 = 0,  t3 = 0,  t4 = 0,  t5 = 0,  t6 = 0,  t7 = 0,
@@ -956,7 +956,7 @@ import blake2b from 'blake2b'
 			b13 = b[13],
 			b14 = b[14],
 			b15 = b[15];
-	
+
 		v = a[0];
 		t0 += v * b0;
 		t1 += v * b1;
@@ -1229,7 +1229,7 @@ import blake2b from 'blake2b'
 		t28 += v * b13;
 		t29 += v * b14;
 		t30 += v * b15;
-	
+
 		t0  += 38 * t16;
 		t1  += 38 * t17;
 		t2  += 38 * t18;
@@ -1246,7 +1246,7 @@ import blake2b from 'blake2b'
 		t13 += 38 * t29;
 		t14 += 38 * t30;
 		// t15 left as is
-	
+
 		// first car
 		c = 1;
 		v =  t0 + c + 65535; c = Math.floor(v / 65536);  t0 = v - c * 65536;
@@ -1266,7 +1266,7 @@ import blake2b from 'blake2b'
 		v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
 		v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
 		t0 += c-1 + 37 * (c-1);
-	
+
 		// second car
 		c = 1;
 		v =  t0 + c + 65535; c = Math.floor(v / 65536);  t0 = v - c * 65536;
@@ -1286,7 +1286,7 @@ import blake2b from 'blake2b'
 		v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
 		v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
 		t0 += c-1 + 37 * (c-1);
-	
+
 		o[ 0] = t0;
 		o[ 1] = t1;
 		o[ 2] = t2;
@@ -1304,11 +1304,11 @@ import blake2b from 'blake2b'
 		o[14] = t14;
 		o[15] = t15;
 	}
-	
+
 	function S(o, a) {
 		M(o, a, a);
 	}
-	
+
 	function inv25519(o, i) {
 		var c = gf();
 		var a;
@@ -1319,7 +1319,7 @@ import blake2b from 'blake2b'
 		}
 		for (a = 0; a < 16; a++) o[a] = c[a];
 	}
-	
+
 	function pow2523(o, i) {
 		var c = gf();
 		var a;
@@ -1330,7 +1330,7 @@ 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;
@@ -1383,37 +1383,37 @@ import blake2b from 'blake2b'
 		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,
@@ -1456,13 +1456,13 @@ import blake2b from 'blake2b'
 		0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
 		0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
 	];
-	
+
 	function crypto_hashblocks_hl(hh, hl, m, n) {
 		var wh = new Int32Array(16), wl = new Int32Array(16),
 				bh0, bh1, bh2, bh3, bh4, bh5, bh6, bh7,
 				bl0, bl1, bl2, bl3, bl4, bl5, bl6, bl7,
 				th, tl, i, j, h, l, a, b, c, d;
-	
+
 		var ah0 = hh[0],
 				ah1 = hh[1],
 				ah2 = hh[2],
@@ -1471,7 +1471,7 @@ import blake2b from 'blake2b'
 				ah5 = hh[5],
 				ah6 = hh[6],
 				ah7 = hh[7],
-	
+
 				al0 = hl[0],
 				al1 = hl[1],
 				al2 = hl[2],
@@ -1480,7 +1480,7 @@ import blake2b from 'blake2b'
 				al5 = hl[5],
 				al6 = hl[6],
 				al7 = hl[7];
-	
+
 		var pos = 0;
 		while (n >= 128) {
 			for (i = 0; i < 16; i++) {
@@ -1497,7 +1497,7 @@ import blake2b from 'blake2b'
 				bh5 = ah5;
 				bh6 = ah6;
 				bh7 = ah7;
-	
+
 				bl0 = al0;
 				bl1 = al1;
 				bl2 = al2;
@@ -1506,97 +1506,97 @@ import blake2b from 'blake2b'
 				bl5 = al5;
 				bl6 = al6;
 				bl7 = al7;
-	
+
 				// add
 				h = ah7;
 				l = al7;
-	
+
 				a = l & 0xffff; b = l >>> 16;
 				c = h & 0xffff; d = h >>> 16;
-	
+
 				// Sigma1
 				h = ((ah4 >>> 14) | (al4 << (32-14))) ^ ((ah4 >>> 18) | (al4 << (32-18))) ^ ((al4 >>> (41-32)) | (ah4 << (32-(41-32))));
 				l = ((al4 >>> 14) | (ah4 << (32-14))) ^ ((al4 >>> 18) | (ah4 << (32-18))) ^ ((ah4 >>> (41-32)) | (al4 << (32-(41-32))));
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				// Ch
 				h = (ah4 & ah5) ^ (~ah4 & ah6);
 				l = (al4 & al5) ^ (~al4 & al6);
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				// K
 				h = K[i*2];
 				l = K[i*2+1];
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				// w
 				h = wh[i%16];
 				l = wl[i%16];
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				b += a >>> 16;
 				c += b >>> 16;
 				d += c >>> 16;
-	
+
 				th = c & 0xffff | d << 16;
 				tl = a & 0xffff | b << 16;
-	
+
 				// add
 				h = th;
 				l = tl;
-	
+
 				a = l & 0xffff; b = l >>> 16;
 				c = h & 0xffff; d = h >>> 16;
-	
+
 				// Sigma0
 				h = ((ah0 >>> 28) | (al0 << (32-28))) ^ ((al0 >>> (34-32)) | (ah0 << (32-(34-32)))) ^ ((al0 >>> (39-32)) | (ah0 << (32-(39-32))));
 				l = ((al0 >>> 28) | (ah0 << (32-28))) ^ ((ah0 >>> (34-32)) | (al0 << (32-(34-32)))) ^ ((ah0 >>> (39-32)) | (al0 << (32-(39-32))));
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				// Maj
 				h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2);
 				l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2);
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				b += a >>> 16;
 				c += b >>> 16;
 				d += c >>> 16;
-	
+
 				bh7 = (c & 0xffff) | (d << 16);
 				bl7 = (a & 0xffff) | (b << 16);
-	
+
 				// add
 				h = bh3;
 				l = bl3;
-	
+
 				a = l & 0xffff; b = l >>> 16;
 				c = h & 0xffff; d = h >>> 16;
-	
+
 				h = th;
 				l = tl;
-	
+
 				a += l & 0xffff; b += l >>> 16;
 				c += h & 0xffff; d += h >>> 16;
-	
+
 				b += a >>> 16;
 				c += b >>> 16;
 				d += c >>> 16;
-	
+
 				bh3 = (c & 0xffff) | (d << 16);
 				bl3 = (a & 0xffff) | (b << 16);
-	
+
 				ah1 = bh0;
 				ah2 = bh1;
 				ah3 = bh2;
@@ -1605,7 +1605,7 @@ import blake2b from 'blake2b'
 				ah6 = bh5;
 				ah7 = bh6;
 				ah0 = bh7;
-	
+
 				al1 = bl0;
 				al2 = bl1;
 				al3 = bl2;
@@ -1614,216 +1614,216 @@ import blake2b from 'blake2b'
 				al6 = bl5;
 				al7 = bl6;
 				al0 = bl7;
-	
+
 				if (i%16 === 15) {
 					for (j = 0; j < 16; j++) {
 						// add
 						h = wh[j];
 						l = wl[j];
-	
+
 						a = l & 0xffff; b = l >>> 16;
 						c = h & 0xffff; d = h >>> 16;
-	
+
 						h = wh[(j+9)%16];
 						l = wl[(j+9)%16];
-	
+
 						a += l & 0xffff; b += l >>> 16;
 						c += h & 0xffff; d += h >>> 16;
-	
+
 						// sigma0
 						th = wh[(j+1)%16];
 						tl = wl[(j+1)%16];
 						h = ((th >>> 1) | (tl << (32-1))) ^ ((th >>> 8) | (tl << (32-8))) ^ (th >>> 7);
 						l = ((tl >>> 1) | (th << (32-1))) ^ ((tl >>> 8) | (th << (32-8))) ^ ((tl >>> 7) | (th << (32-7)));
-	
+
 						a += l & 0xffff; b += l >>> 16;
 						c += h & 0xffff; d += h >>> 16;
-	
+
 						// sigma1
 						th = wh[(j+14)%16];
 						tl = wl[(j+14)%16];
 						h = ((th >>> 19) | (tl << (32-19))) ^ ((tl >>> (61-32)) | (th << (32-(61-32)))) ^ (th >>> 6);
 						l = ((tl >>> 19) | (th << (32-19))) ^ ((th >>> (61-32)) | (tl << (32-(61-32)))) ^ ((tl >>> 6) | (th << (32-6)));
-	
+
 						a += l & 0xffff; b += l >>> 16;
 						c += h & 0xffff; d += h >>> 16;
-	
+
 						b += a >>> 16;
 						c += b >>> 16;
 						d += c >>> 16;
-	
+
 						wh[j] = (c & 0xffff) | (d << 16);
 						wl[j] = (a & 0xffff) | (b << 16);
 					}
 				}
 			}
-	
+
 			// add
 			h = ah0;
 			l = al0;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[0];
 			l = hl[0];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[0] = ah0 = (c & 0xffff) | (d << 16);
 			hl[0] = al0 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah1;
 			l = al1;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[1];
 			l = hl[1];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[1] = ah1 = (c & 0xffff) | (d << 16);
 			hl[1] = al1 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah2;
 			l = al2;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[2];
 			l = hl[2];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[2] = ah2 = (c & 0xffff) | (d << 16);
 			hl[2] = al2 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah3;
 			l = al3;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[3];
 			l = hl[3];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[3] = ah3 = (c & 0xffff) | (d << 16);
 			hl[3] = al3 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah4;
 			l = al4;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[4];
 			l = hl[4];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[4] = ah4 = (c & 0xffff) | (d << 16);
 			hl[4] = al4 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah5;
 			l = al5;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[5];
 			l = hl[5];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[5] = ah5 = (c & 0xffff) | (d << 16);
 			hl[5] = al5 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah6;
 			l = al6;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[6];
 			l = hl[6];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[6] = ah6 = (c & 0xffff) | (d << 16);
 			hl[6] = al6 = (a & 0xffff) | (b << 16);
-	
+
 			h = ah7;
 			l = al7;
-	
+
 			a = l & 0xffff; b = l >>> 16;
 			c = h & 0xffff; d = h >>> 16;
-	
+
 			h = hh[7];
 			l = hl[7];
-	
+
 			a += l & 0xffff; b += l >>> 16;
 			c += h & 0xffff; d += h >>> 16;
-	
+
 			b += a >>> 16;
 			c += b >>> 16;
 			d += c >>> 16;
-	
+
 			hh[7] = ah7 = (c & 0xffff) | (d << 16);
 			hl[7] = al7 = (a & 0xffff) | (b << 16);
-	
+
 			pos += 128;
 			n -= 128;
 		}
-	
+
 		return n;
 	}
-	
+
 	function crypto_hash(out, m, n) {
 		var hh = new Int32Array(8),
 				hl = new Int32Array(8),
 				x = new Uint8Array(256),
 				i, b = n;
-	
+
 		hh[0] = 0x6a09e667;
 		hh[1] = 0xbb67ae85;
 		hh[2] = 0x3c6ef372;
@@ -1832,7 +1832,7 @@ import blake2b from 'blake2b'
 		hh[5] = 0x9b05688c;
 		hh[6] = 0x1f83d9ab;
 		hh[7] = 0x5be0cd19;
-	
+
 		hl[0] = 0xf3bcc908;
 		hl[1] = 0x84caa73b;
 		hl[2] = 0xfe94f82b;
@@ -1841,23 +1841,23 @@ import blake2b from 'blake2b'
 		hl[5] = 0x2b3e6c1f;
 		hl[6] = 0xfb41bd6b;
 		hl[7] = 0x137e2179;
-	
+
 		crypto_hashblocks_hl(hh, hl, m, n);
 		n %= 128;
-	
+
 		for (i = 0; i < n; i++) x[i] = m[b-n+i];
 		x[n] = 128;
-	
+
 		n = 256-128*(n<112?1:0);
 		x[n-9] = 0;
 		ts64(x, n-8,  (b / 0x20000000) | 0, b << 3);
 		crypto_hashblocks_hl(hh, hl, x, n);
-	
+
 		for (i = 0; i < 8; i++) ts64(out, 8*i, hh[i], hl[i]);
-	
+
 		return 0;
 	}
-	
+
 	function crypto_hash_blake2b(out, m, n) {
 		const input = new Uint8Array(n)
 		for (let i = 0; i < n; ++i) {
@@ -1869,12 +1869,12 @@ import blake2b from 'blake2b'
 		}
 		return 0
 	}
-	
+
 	function add(p, q) {
 		var a = gf(), b = gf(), c = gf(),
 				d = gf(), e = gf(), f = gf(),
 				g = gf(), h = gf(), t = gf();
-	
+
 		Z(a, p[1], p[0]);
 		Z(t, q[1], q[0]);
 		M(a, a, t);
@@ -1889,20 +1889,20 @@ import blake2b from 'blake2b'
 		Z(f, d, c);
 		A(g, d, c);
 		A(h, b, a);
-	
+
 		M(p[0], e, f);
 		M(p[1], h, g);
 		M(p[2], g, f);
 		M(p[3], e, h);
 	}
-	
+
 	function cswap(p, q, b) {
 		var i;
 		for (i = 0; i < 4; i++) {
 			sel25519(p[i], q[i], b);
 		}
 	}
-	
+
 	function pack(r, p) {
 		var tx = gf(), ty = gf(), zi = gf();
 		inv25519(zi, p[2]);
@@ -1911,7 +1911,7 @@ import blake2b from 'blake2b'
 		pack25519(r, ty);
 		r[31] ^= par25519(tx) << 7;
 	}
-	
+
 	function scalarmult(p, q, s) {
 		var b, i;
 		set25519(p[0], gf0);
@@ -1926,7 +1926,7 @@ import blake2b from 'blake2b'
 			cswap(p, q, b);
 		}
 	}
-	
+
 	function scalarbase(p, s) {
 		var q = [gf(), gf(), gf(), gf()];
 		set25519(q[0], X);
@@ -1935,27 +1935,27 @@ import blake2b from 'blake2b'
 		M(q[3], X, Y);
 		scalarmult(p, q, s);
 	}
-	
+
 	function crypto_sign_keypair(pk, sk, seeded?) {
 		var d = new Uint8Array(64);
 		var p = [gf(), gf(), gf(), gf()];
 		var i;
-	
+
 		if (!seeded) randombytes(sk, 32);
 		crypto_hash(d, sk, 32);
 		d[0] &= 248;
 		d[31] &= 127;
 		d[31] |= 64;
-	
+
 		scalarbase(p, d);
 		pack(pk, p);
-	
+
 		for (i = 0; i < 32; i++) sk[i+32] = pk[i];
 		return 0;
 	}
-	
+
 	var L = new Float64Array([0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]);
-	
+
 	function modL(r, x) {
 		var carry, i, j, k;
 		for (i = 63; i >= 32; --i) {
@@ -1980,38 +1980,38 @@ import blake2b from 'blake2b'
 			r[i] = x[i] & 255;
 		}
 	}
-	
+
 	function reduce(r) {
 		var x = new Float64Array(64), i;
 		for (i = 0; i < 64; i++) x[i] = r[i];
 		for (i = 0; i < 64; i++) r[i] = 0;
 		modL(r, x);
 	}
-	
+
 	// Note: difference from C - smlen returned, not passed as argument.
 	function crypto_sign(sm, m, n, sk) {
 		var d = new Uint8Array(64), h = new Uint8Array(64), r = new Uint8Array(64);
 		var i, j, x = new Float64Array(64);
 		var p = [gf(), gf(), gf(), gf()];
-	
+
 		crypto_hash(d, sk, 32);
 		d[0] &= 248;
 		d[31] &= 127;
 		d[31] |= 64;
-	
+
 		var smlen = n + 64;
 		for (i = 0; i < n; i++) sm[64 + i] = m[i];
 		for (i = 0; i < 32; i++) sm[32 + i] = d[32 + i];
-	
+
 		crypto_hash(r, sm.subarray(32), n+32);
 		reduce(r);
 		scalarbase(p, r);
 		pack(sm, p);
-	
+
 		for (i = 32; i < 64; i++) sm[i] = sk[i];
 		crypto_hash(h, sm, n + 64);
 		reduce(h);
-	
+
 		for (i = 0; i < 64; i++) x[i] = 0;
 		for (i = 0; i < 32; i++) x[i] = r[i];
 		for (i = 0; i < 32; i++) {
@@ -2019,79 +2019,79 @@ import blake2b from 'blake2b'
 				x[i+j] += h[i] * d[j];
 			}
 		}
-	
+
 		modL(sm.subarray(32), x);
 		return smlen;
 	}
-	
+
 	function unpackneg(r, p) {
 		var t = gf(), chk = gf(), num = gf(),
 				den = gf(), den2 = gf(), den4 = gf(),
 				den6 = gf();
-	
+
 		set25519(r[2], gf1);
 		unpack25519(r[1], p);
 		S(num, r[1]);
 		M(den, num, D);
 		Z(num, num, r[2]);
 		A(den, r[2], den);
-	
+
 		S(den2, den);
 		S(den4, den2);
 		M(den6, den4, den2);
 		M(t, den6, num);
 		M(t, t, den);
-	
+
 		pow2523(t, t);
 		M(t, t, num);
 		M(t, t, den);
 		M(t, t, den);
 		M(r[0], t, den);
-	
+
 		S(chk, r[0]);
 		M(chk, chk, den);
 		if (neq25519(chk, num)) M(r[0], r[0], I);
-	
+
 		S(chk, r[0]);
 		M(chk, chk, den);
 		if (neq25519(chk, num)) return -1;
-	
+
 		if (par25519(r[0]) === (p[31]>>7)) Z(r[0], gf0, r[0]);
-	
+
 		M(r[3], r[0], r[1]);
 		return 0;
 	}
-	
+
 	function crypto_sign_open(m, sm, n, pk) {
 		var i;
 		var t = new Uint8Array(32), h = new Uint8Array(64);
 		var p = [gf(), gf(), gf(), gf()],
 				q = [gf(), gf(), gf(), gf()];
-	
+
 		if (n < 64) return -1;
-	
+
 		if (unpackneg(q, pk)) return -1;
-	
+
 		for (i = 0; i < n; i++) m[i] = sm[i];
 		for (i = 0; i < 32; i++) m[i+32] = pk[i];
 		crypto_hash(h, m, n);
 		reduce(h);
 		scalarmult(p, q, h);
-	
+
 		scalarbase(q, sm.subarray(32));
 		add(p, q);
 		pack(t, p);
-	
+
 		n -= 64;
 		if (crypto_verify_32(sm, 0, t, 0)) {
 			for (i = 0; i < n; i++) m[i] = 0;
 			return -1;
 		}
-	
+
 		for (i = 0; i < n; i++) m[i] = sm[i + 64];
 		return n;
 	}
-	
+
 	var crypto_secretbox_KEYBYTES = 32,
 			crypto_secretbox_NONCEBYTES = 24,
 			crypto_secretbox_ZEROBYTES = 32,
@@ -2109,7 +2109,7 @@ import blake2b from 'blake2b'
 			crypto_sign_SECRETKEYBYTES = 64,
 			crypto_sign_SEEDBYTES = 32,
 			crypto_hash_BYTES = 64;
-	
+
 	lowlevel = {
 		crypto_core_hsalsa20: crypto_core_hsalsa20,
 		crypto_stream_xor: crypto_stream_xor,
@@ -2133,7 +2133,7 @@ import blake2b from 'blake2b'
 		crypto_sign: crypto_sign,
 		crypto_sign_keypair: crypto_sign_keypair,
 		crypto_sign_open: crypto_sign_open,
-	
+
 		crypto_secretbox_KEYBYTES: crypto_secretbox_KEYBYTES,
 		crypto_secretbox_NONCEBYTES: crypto_secretbox_NONCEBYTES,
 		crypto_secretbox_ZEROBYTES: crypto_secretbox_ZEROBYTES,
@@ -2151,7 +2151,7 @@ import blake2b from 'blake2b'
 		crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES,
 		crypto_sign_SEEDBYTES: crypto_sign_SEEDBYTES,
 		crypto_hash_BYTES: crypto_hash_BYTES,
-	
+
 		gf: gf,
 		D: D,
 		L: L,
@@ -2168,30 +2168,25 @@ import blake2b from 'blake2b'
 		scalarmult: scalarmult,
 		scalarbase: scalarbase,
 	};
-	
+
 	/* High-level API */
-	
+
 	function checkLengths(k, n) {
 		if (k.length !== crypto_secretbox_KEYBYTES) throw new Error('bad key size');
 		if (n.length !== crypto_secretbox_NONCEBYTES) throw new Error('bad nonce size');
 	}
-	
-	function checkBoxLengths(pk, sk) {
-		if (pk.length !== crypto_box_PUBLICKEYBYTES) throw new Error('bad public key size');
-		if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size');
-	}
-	
+
 	function checkArrayTypes() {
 		for (var i = 0; i < arguments.length; i++) {
 			if (!(arguments[i] instanceof Uint8Array))
 				throw new TypeError('unexpected type, use Uint8Array');
 		}
 	}
-	
+
 	function cleanup(arr) {
 		for (var i = 0; i < arr.length; i++) arr[i] = 0;
 	}
-	
+
 	secretbox = function(msg, nonce, key) {
 		checkArrayTypes(msg, nonce, key);
 		checkLengths(key, nonce);
@@ -2201,7 +2196,7 @@ import blake2b from 'blake2b'
 		crypto_secretbox(c, m, m.length, nonce, key);
 		return c.subarray(crypto_secretbox_BOXZEROBYTES);
 	};
-	
+
 	secretbox.open = function(box, nonce, key) {
 		checkArrayTypes(box, nonce, key);
 		checkLengths(key, nonce);
@@ -2212,11 +2207,11 @@ import blake2b from 'blake2b'
 		if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return null;
 		return m.subarray(crypto_secretbox_ZEROBYTES);
 	};
-	
+
 	secretbox.keyLength = crypto_secretbox_KEYBYTES;
 	secretbox.nonceLength = crypto_secretbox_NONCEBYTES;
 	secretbox.overheadLength = crypto_secretbox_BOXZEROBYTES;
-	
+
 	scalarMult = function(n, p) {
 		checkArrayTypes(n, p);
 		if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
@@ -2225,7 +2220,7 @@ import blake2b from 'blake2b'
 		crypto_scalarmult(q, n, p);
 		return q;
 	};
-	
+
 	scalarMult.base = function(n) {
 		checkArrayTypes(n);
 		if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
@@ -2233,54 +2228,10 @@ import blake2b from 'blake2b'
 		crypto_scalarmult_base(q, n);
 		return q;
 	};
-	
+
 	scalarMult.scalarLength = crypto_scalarmult_SCALARBYTES;
 	scalarMult.groupElementLength = crypto_scalarmult_BYTES;
 
-	box = function(msg, nonce, publicKey, secretKey) {
-		var k = box.before(publicKey, secretKey);
-		return secretbox(msg, nonce, k);
-	};
-	
-	box.before = function(publicKey, secretKey) {
-			checkArrayTypes(publicKey, secretKey);
-			checkBoxLengths(publicKey, secretKey);
-			var k = new Uint8Array(crypto_box_BEFORENMBYTES);
-			crypto_box_beforenm(k, publicKey, secretKey);
-			return k;
-	};
-	
-	box.after = secretbox;
-	
-	box.open = function(msg, nonce, publicKey, secretKey) {
-		var k = box.before(publicKey, secretKey);
-		return secretbox.open(msg, nonce, k);
-	};
-	
-	box.open.after = secretbox.open;
-	
-	box.keyPair = function() {
-				var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
-				var sk = new Uint8Array(crypto_box_SECRETKEYBYTES);
-				crypto_box_keypair(pk, sk);
-				return {publicKey: pk, secretKey: sk};
-	};
-	
-	box.keyPair.fromSecretKey = function(secretKey) {
-				checkArrayTypes(secretKey);
-				if (secretKey.length !== crypto_box_SECRETKEYBYTES)
-					throw new Error('bad secret key size');
-				var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
-				crypto_scalarmult_base(pk, secretKey);
-				return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
-	};
-	
-	box.publicKeyLength = crypto_box_PUBLICKEYBYTES;
-	box.secretKeyLength = crypto_box_SECRETKEYBYTES;
-	box.sharedKeyLength = crypto_box_BEFORENMBYTES;
-	box.nonceLength = crypto_box_NONCEBYTES;
-	box.overheadLength = secretbox.overheadLength;
-	
 	sign = function(msg, secretKey) {
 			checkArrayTypes(msg, secretKey);
 			if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
@@ -2289,7 +2240,7 @@ import blake2b from 'blake2b'
 			crypto_sign(signedMsg, msg, msg.length, secretKey);
 			return signedMsg;
 	};
-	
+
 	sign.open = function(signedMsg, publicKey) {
 			checkArrayTypes(signedMsg, publicKey);
 			if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
@@ -2301,14 +2252,14 @@ import blake2b from 'blake2b'
 			for (var i = 0; i < m.length; i++) m[i] = tmp[i];
 			return m;
 	};
-	
+
 	sign.detached = function(msg, secretKey) {
 			var signedMsg = sign(msg, secretKey);
 			var sig = new Uint8Array(crypto_sign_BYTES);
 			for (var i = 0; i < sig.length; i++) sig[i] = signedMsg[i];
 			return sig;
 	};
-	
+
 	sign.detached.verify = function(msg, sig, publicKey) {
 			checkArrayTypes(msg, sig, publicKey);
 			if (sig.length !== crypto_sign_BYTES)
@@ -2322,14 +2273,14 @@ import blake2b from 'blake2b'
 			for (i = 0; i < msg.length; i++) sm[i+crypto_sign_BYTES] = msg[i];
 			return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0);
 	};
-	
+
 	sign.keyPair = function() {
 			var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
 			var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
 			crypto_sign_keypair(pk, sk);
 			return {publicKey: pk, secretKey: sk};
 	};
-	
+
 	sign.keyPair.fromSecretKey = function(secretKey) {
 			checkArrayTypes(secretKey);
 			if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
@@ -2338,7 +2289,7 @@ import blake2b from 'blake2b'
 			for (var i = 0; i < pk.length; i++) pk[i] = secretKey[32+i];
 			return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
 	};
-	
+
 	sign.keyPair.fromSeed = function(seed) {
 			checkArrayTypes(seed);
 			if (seed.length !== crypto_sign_SEEDBYTES)
@@ -2349,21 +2300,21 @@ import blake2b from 'blake2b'
 			crypto_sign_keypair(pk, sk, true);
 			return {publicKey: pk, secretKey: sk};
 	};
-	
+
 	sign.publicKeyLength = crypto_sign_PUBLICKEYBYTES;
 	sign.secretKeyLength = crypto_sign_SECRETKEYBYTES;
 	sign.seedLength = crypto_sign_SEEDBYTES;
 	sign.signatureLength = crypto_sign_BYTES;
-	
+
 	hash = function(msg) {
 		checkArrayTypes(msg);
 		var h = new Uint8Array(crypto_hash_BYTES);
 		crypto_hash(h, msg, msg.length);
 		return h;
 	};
-	
+
 	hash.hashLength = crypto_hash_BYTES;
-	
+
 	verify = function(x, y) {
 		checkArrayTypes(x, y);
 		// Zero length arguments are considered not equal.
@@ -2371,11 +2322,11 @@ import blake2b from 'blake2b'
 		if (x.length !== y.length) return false;
 		return (vn(x, 0, y, 0, x.length) === 0) ? true : false;
 	};
-	
+
 	const setPRNG = function(fn) {
 		randombytes = fn;
 	};
-	
+
 	(function() {
 		// Initialize PRNG if environment provides CSPRNG.
 		// If not, methods calling randombytes will throw.
@@ -2403,5 +2354,5 @@ import blake2b from 'blake2b'
 			}
 		}
 	})();
-	
+
 	export { sign, verify }
-- 
2.34.1