From 9d5baf7d1d14ca7eb0852b41566330259229d489 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Thu, 1 Mar 2018 02:14:50 +0100 Subject: Revert "contrib: keygen-html: rewrite in pure javascript" This reverts commit e5203543a674453ce1e0cbbcb234d3308762fe65. As swanky as it is to have a really short file, it's hard to justify and makes me nervous. --- contrib/examples/keygen-html/wireguard.js | 186 ------------------------------ 1 file changed, 186 deletions(-) delete mode 100644 contrib/examples/keygen-html/wireguard.js (limited to 'contrib/examples/keygen-html/wireguard.js') diff --git a/contrib/examples/keygen-html/wireguard.js b/contrib/examples/keygen-html/wireguard.js deleted file mode 100644 index b77dec8..0000000 --- a/contrib/examples/keygen-html/wireguard.js +++ /dev/null @@ -1,186 +0,0 @@ -/*! SPDX-License-Identifier: GPL-2.0 - * - * Copyright (C) 2015-2018 Jason A. Donenfeld . All Rights Reserved. - */ - -(function() { - function gf(init) { - var r = new Float64Array(16); - if (init) { - for (var i = 0; i < init.length; ++i) - r[i] = init[i]; - } - return r; - } - - function pack(o, n) { - var b, m = gf(), t = gf(); - for (var i = 0; i < 16; ++i) - t[i] = n[i]; - carry(t); - carry(t); - carry(t); - for (var j = 0; j < 2; ++j) { - m[0] = t[0] - 0xffed; - for (var i = 1; i < 15; ++i) { - m[i] = t[i] - 0xffff - ((m[i - 1] >> 16) & 1); - m[i - 1] &= 0xffff; - } - m[15] = t[15] - 0x7fff - ((m[14] >> 16) & 1); - b = (m[15] >> 16) & 1; - m[14] &= 0xffff; - cswap(t, m, 1 - b); - } - for (var i = 0; i < 16; ++i) { - o[2 * i] = t[i] & 0xff; - o[2 * i + 1] = t[i] >> 8; - } - } - - function carry(o) { - var c; - for (var i = 0; i < 16; ++i) { - o[i] += 65536; - c = Math.floor(o[i] / 65536); - o[(i + 1) * (i < 15 ? 1 : 0)] += c - 1 + 37 * (c - 1) * (i === 15 ? 1 : 0); - o[i] -= (c * 65536); - } - } - - function cswap(p, q, b) { - var t, c = ~(b - 1); - for (var i = 0; i < 16; ++i) { - t = c & (p[i] ^ q[i]); - p[i] ^= t; - q[i] ^= t; - } - } - - function add(o, a, b) { - for (var i = 0; i < 16; ++i) - o[i] = (a[i] + b[i]) | 0; - } - - function subtract(o, a, b) { - for (var i = 0; i < 16; ++i) - o[i] = (a[i] - b[i]) | 0; - } - - function multmod(o, a, b) { - var t = new Float64Array(31); - for (var i = 0; i < 16; ++i) { - for (var j = 0; j < 16; ++j) - t[i + j] += a[i] * b[j]; - } - for (var i = 0; i < 15; ++i) - t[i] += 38 * t[i + 16]; - for (var i = 0; i < 16; ++i) - o[i] = t[i]; - carry(o); - carry(o); - } - - function invert(o, i) { - var c = gf(); - for (var a = 0; a < 16; ++a) - c[a] = i[a]; - for (var a = 253; a >= 0; --a) { - multmod(c, c, c); - if (a !== 2 && a !== 4) - multmod(c, c, i); - } - for (var a = 0; a < 16; ++a) - o[a] = c[a]; - } - - function normalizeKey(z) { - z[31] = (z[31] & 127) | 64; - z[0] &= 248; - } - - function generatePublicKey(privateKey) { - var r, z = new Uint8Array(32); - var a = gf([1]), - b = gf([9]), - c = gf(), - d = gf([1]), - e = gf(), - f = gf(), - _121665 = gf([0xdb41, 1]), - _9 = gf([9]); - for (var i = 0; i < 32; ++i) - z[i] = privateKey[i]; - normalizeKey(z); - for (var i = 254; i >= 0; --i) { - r = (z[i >>> 3] >>> (i & 7)) & 1; - cswap(a, b, r); - cswap(c, d, r); - add(e, a, c); - subtract(a, a, c); - add(c, b, d); - subtract(b, b, d); - multmod(d, e, e); - multmod(f, a, a); - multmod(a, c, a); - multmod(c, b, e); - add(e, a, c); - subtract(a, a, c); - multmod(b, a, a); - subtract(c, d, f); - multmod(a, c, _121665); - add(a, a, d); - multmod(c, c, a); - multmod(a, d, f); - multmod(d, b, _9); - multmod(b, e, e); - cswap(a, b, r); - cswap(c, d, r); - } - invert(c, c); - multmod(a, a, c); - pack(z, a); - return z; - } - - function generatePresharedKey() { - var privateKey = new Uint8Array(32); - window.crypto.getRandomValues(privateKey); - return privateKey; - } - - function generatePrivateKey() { - var privateKey = generatePresharedKey(); - normalizeKey(privateKey); - return privateKey; - } - - function encodeBase64(dest, src) { - var input = Uint8Array.from([(src[0] >> 2) & 63, ((src[0] << 4) | (src[1] >> 4)) & 63, ((src[1] << 2) | (src[2] >> 6)) & 63, src[2] & 63]); - for (var i = 0; i < 4; ++i) - dest[i] = input[i] + 65 + - (((25 - input[i]) >> 8) & 6) - - (((51 - input[i]) >> 8) & 75) - - (((61 - input[i]) >> 8) & 15) + - (((62 - input[i]) >> 8) & 3); - } - - function keyToBase64(key) { - var i, base64 = new Uint8Array(44); - for (i = 0; i < 32 / 3; ++i) - encodeBase64(base64.subarray(i * 4), key.subarray(i * 3)); - encodeBase64(base64.subarray(i * 4), Uint8Array.from([key[i * 3 + 0], key[i * 3 + 1], 0])); - base64[43] = 61; - return String.fromCharCode.apply(null, base64); - } - - window["WireGuard"] = { - "generateKeypair": function() { - var privateKey = generatePrivateKey(); - var publicKey = generatePublicKey(privateKey); - return { - publicKey: keyToBase64(publicKey), - privateKey: keyToBase64(privateKey) - }; - } - }; -})(); -- cgit v1.2.3-59-g8ed1b