diff options
| author | Florian Dold <florian.dold@gmail.com> | 2019-11-25 19:06:05 +0100 |
|---|---|---|
| committer | Florian Dold <florian.dold@gmail.com> | 2019-11-25 19:06:05 +0100 |
| commit | d42b9e3df8d1bf0e2d0805a04663a79b22a2545d (patch) | |
| tree | b49d41ff97b313c951d332975fb34ecc263d7383 | |
| parent | de9f8867d5141940f47951c51648becec74959cb (diff) | |
crypto porting WIP
| -rw-r--r-- | src/crypto/emscInterface-test.ts | 50 | ||||
| -rw-r--r-- | src/crypto/kdf.ts | 100 | ||||
| -rw-r--r-- | src/crypto/nacl-fast.ts | 2404 | ||||
| -rw-r--r-- | src/crypto/nativeCrypto-test.ts | 57 | ||||
| -rw-r--r-- | src/crypto/nativeCrypto.ts | 4 | ||||
| -rw-r--r-- | src/crypto/sha256.ts | 429 |
6 files changed, 3039 insertions, 5 deletions
diff --git a/src/crypto/emscInterface-test.ts b/src/crypto/emscInterface-test.ts index b1a45cbcf..422ee45e2 100644 --- a/src/crypto/emscInterface-test.ts +++ b/src/crypto/emscInterface-test.ts @@ -20,6 +20,10 @@ import test from "ava"; import { NodeEmscriptenLoader } from "./nodeEmscriptenLoader"; import * as native from "./emscInterface"; +import nacl = require("./nacl-fast"); +import { encodeCrock, decodeCrock } from "./nativeCrypto"; +import { timestampCheck } from "../helpers"; + test("string hashing", async (t) => { const loader = new NodeEmscriptenLoader(); @@ -30,6 +34,16 @@ test("string hashing", async (t) => { const hc = x.hash().toCrock(); console.log(`# hc ${hc}`); t.true(h === hc, "must equal"); + + const te = new TextEncoder(); + + const x2 = te.encode("hello taler\0") + + const hc2 = encodeCrock(nacl.hash(x2)); + + console.log(`# hc2 ${hc}`); + t.true(h === hc2); + t.pass(); }); @@ -39,11 +53,45 @@ test("signing", async (t) => { const emsc = await loader.getEmscriptenEnvironment(); const x = native.ByteArray.fromStringWithNull(emsc, "hello taler"); - const priv = native.EddsaPrivateKey.create(emsc, ); + const priv = native.EddsaPrivateKey.create(emsc); const pub = priv.getPublicKey(); const purpose = new native.EccSignaturePurpose(emsc, native.SignaturePurpose.TEST, x); + + const purposeDataCrock = purpose.toCrock(); + const privCrock = priv.toCrock(); + const pubCrock = pub.toCrock(); const sig = native.eddsaSign(purpose, priv); + console.time("a"); + for (let i = 0; i < 5000; i++) { + const sig = native.eddsaSign(purpose, priv); + } + console.timeEnd("a"); t.true(native.eddsaVerify(native.SignaturePurpose.TEST, purpose, sig, pub)); + + console.log("priv size", decodeCrock(privCrock).byteLength); + + const pair = nacl.sign_keyPair_fromSeed(new Uint8Array(decodeCrock(privCrock))); + + console.log("emsc priv", privCrock); + console.log("emsc pub", pubCrock); + + console.log("nacl priv", encodeCrock(pair.secretKey)); + console.log("nacl pub", encodeCrock(pair.publicKey)); + + const d2 = new Uint8Array(decodeCrock(purposeDataCrock)); + const d3 = nacl.hash(d2); + + console.time("b"); + for (let i = 0; i < 5000; i++) { + const s2 = nacl.sign_detached(d3, pair.secretKey); + } + console.timeEnd("b"); + + const s2 = nacl.sign_detached(d3, pair.secretKey); + + console.log("sig1:", sig.toCrock()); + console.log("sig2:", encodeCrock(s2)); + t.pass(); }); diff --git a/src/crypto/kdf.ts b/src/crypto/kdf.ts new file mode 100644 index 000000000..3c44be3bc --- /dev/null +++ b/src/crypto/kdf.ts @@ -0,0 +1,100 @@ +/* + This file is part of GNU Taler + (C) 2019 GNUnet e.V. + + GNU Taler is free software; you can redistribute it and/or modify it under the + terms of the GNU General Public License as published by the Free Software + Foundation; either version 3, or (at your option) any later version. + + GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR + A PARTICULAR PURPOSE. See the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along with + GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/> + */ + +import nacl = require("./nacl-fast"); +import { sha256 } from "./sha256"; + +let createHmac: any; + +export function sha512(data: Uint8Array): Uint8Array { + return nacl.hash(data); +} + +export function hmac( + digest: (d: Uint8Array) => Uint8Array, + blockSize: number, + key: Uint8Array, + message: Uint8Array, +): Uint8Array { + if (key.byteLength > blockSize) { + key = digest(key); + } + console.log("message", message); + if (key.byteLength < blockSize) { + const k = key; + key = new Uint8Array(blockSize); + key.set(k, 0); + } + const okp = new Uint8Array(blockSize); + const ikp = new Uint8Array(blockSize); + for (let i = 0; i < blockSize; i++) { + ikp[i] = key[i] ^ 0x36; + okp[i] = key[i] ^ 0x5c; + } + const b1 = new Uint8Array(blockSize + message.byteLength); + b1.set(ikp, 0); + b1.set(message, blockSize); + const h0 = digest(b1); + const b2 = new Uint8Array(blockSize + h0.length); + b2.set(okp, 0); + b2.set(h0, blockSize); + return digest(b2); +} + +export function hmacSha512(key: Uint8Array, message: Uint8Array) { + return hmac(sha512, 128, key, message); +} + +export function hmacSha256(key: Uint8Array, message: Uint8Array) { + return hmac(sha256, 64, key, message); +} + +/* +function expand(prfAlgo: string, prk: Uint8Array, length: number, info: Uint8Array) { + let hashLength; + if (prfAlgo == "sha512") { + hashLength = 64; + } else if (prfAlgo == "sha256") { + hashLength = 32; + } else { + throw Error("unsupported hash"); + } + info = info || Buffer.alloc(0); + var N = Math.ceil(length / hashLength); + var memo: Buffer[] = []; + + for (var i = 0; i < N; i++) { + memo[i] = createHmac(prfAlgo, prk) + .update(memo[i - 1] || Buffer.alloc(0)) + .update(info) + .update(Buffer.alloc(1, i + 1)) + .digest(); + } + return Buffer.concat(memo, length); +} +*/ + +export function kdf(ikm: Uint8Array, salt: Uint8Array, info: Uint8Array) { + // extract + const prk = hmacSha512(salt, ikm); + + // expand + + var N = Math.ceil(length / 256); + + //return expand(prfAlgo, prk, length, info); + return prk; +} diff --git a/src/crypto/nacl-fast.ts b/src/crypto/nacl-fast.ts new file mode 100644 index 000000000..6757e7c51 --- /dev/null +++ b/src/crypto/nacl-fast.ts @@ -0,0 +1,2404 @@ +// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri. +// TypeScript port in 2019 by Florian Dold. +// Public domain. +// +// Implementation derived from TweetNaCl version 20140427. +// See for details: http://tweetnacl.cr.yp.to/ + +const gf = function(init: number[] = []) { + const r = new Float64Array(16); + if (init) for (let i = 0; i < init.length; i++) r[i] = init[i]; + return r; +}; + +// Pluggable, initialized in high-level API below. +let randombytes = function(x: Uint8Array, n: number): void { + throw new Error('no PRNG'); +}; + +const _0 = new Uint8Array(16); +const _9 = new Uint8Array(32); _9[0] = 9; + +// prettier-ignore +const gf0 = gf(); +const gf1 = gf([1]); +const _121665 = gf([0xdb41, 1]); +const D = gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]); +const D2 = gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]); +const X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]); +const Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]); +const I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]); + +function ts64(x: Uint8Array, i: number, h: number, l: number) { + x[i] = (h >> 24) & 0xff; + x[i+1] = (h >> 16) & 0xff; + x[i+2] = (h >> 8) & 0xff; + x[i+3] = h & 0xff; + x[i+4] = (l >> 24) & 0xff; + x[i+5] = (l >> 16) & 0xff; + x[i+6] = (l >> 8) & 0xff; + x[i+7] = l & 0xff; +} + +function vn(x: Uint8Array, xi: number, y: Uint8Array, yi: number, n: number) { + 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: Uint8Array, xi: number, y: Uint8Array, yi: number) { + return vn(x,xi,y,yi,16); +} + +function crypto_verify_32(x: Uint8Array, xi: number, y: Uint8Array, yi: number) { + return vn(x,xi,y,yi,32); +} + +// prettier-ignore +function core_salsa20(o: Uint8Array, p: Uint8Array, k: Uint8Array, c: Uint8Array) { + 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: Uint8Array,p: Uint8Array,k: Uint8Array,c: Uint8Array) { + 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: Uint8Array, inp: Uint8Array, k: Uint8Array, c: Uint8Array) { + core_salsa20(out,inp,k,c); +} + +function crypto_core_hsalsa20(out: Uint8Array,inp: Uint8Array,k: Uint8Array,c: Uint8Array) { + 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: Uint8Array, cpos: number,m: Uint8Array, mpos: number,b: number,n: Uint8Array,k: Uint8Array) { + 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: Uint8Array ,cpos: number,b: number,n: Uint8Array,k: Uint8Array) { + 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: Uint8Array,cpos: number,d: number,n: Uint8Array,k: Uint8Array) { + 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: Uint8Array, cpos: number,m: Uint8Array,mpos: number,d: number,n: Uint8Array,k: Uint8Array) { + 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 +*/ + +class poly1305 { + buffer = new Uint8Array(16); + r = new Uint16Array(10); + h = new Uint16Array(10); + pad = new Uint16Array(8); + leftover = 0; + fin = 0; + + constructor(key: Uint8Array) { + 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; + t3 = key[ 6] & 0xff | (key[ 7] & 0xff) << 8; this.r[3] = ((t2 >>> 7) | (t3 << 9)) & 0x1fff; + t4 = key[ 8] & 0xff | (key[ 9] & 0xff) << 8; this.r[4] = ((t3 >>> 4) | (t4 << 12)) & 0x00ff; + this.r[5] = ((t4 >>> 1)) & 0x1ffe; + t5 = key[10] & 0xff | (key[11] & 0xff) << 8; this.r[6] = ((t4 >>> 14) | (t5 << 2)) & 0x1fff; + 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; + this.pad[3] = key[22] & 0xff | (key[23] & 0xff) << 8; + this.pad[4] = key[24] & 0xff | (key[25] & 0xff) << 8; + this.pad[5] = key[26] & 0xff | (key[27] & 0xff) << 8; + this.pad[6] = key[28] & 0xff | (key[29] & 0xff) << 8; + this.pad[7] = key[30] & 0xff | (key[31] & 0xff) << 8; + } + + blocks(m: Uint8Array, mpos: number, bytes: number) { + 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], + h3 = this.h[3], + h4 = this.h[4], + h5 = this.h[5], + h6 = this.h[6], + 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], + r3 = this.r[3], + r4 = this.r[4], + r5 = this.r[5], + r6 = this.r[6], + 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; + t2 = m[mpos+ 4] & 0xff | (m[mpos+ 5] & 0xff) << 8; h2 += ((t1 >>> 10) | (t2 << 6)) & 0x1fff; + t3 = m[mpos+ 6] & 0xff | (m[mpos+ 7] & 0xff) << 8; h3 += ((t2 >>> 7) | (t3 << 9)) & 0x1fff; + t4 = m[mpos+ 8] & 0xff | (m[mpos+ 9] & 0xff) << 8; h4 += ((t3 >>> 4) | (t4 << 12)) & 0x1fff; + h5 += ((t4 >>> 1)) & 0x1fff; + t5 = m[mpos+10] & 0xff | (m[mpos+11] & 0xff) << 8; h6 += ((t4 >>> 14) | (t5 << 2)) & 0x1fff; + 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); + d0 += h2 * (5 * r8); + d0 += h3 * (5 * r7); + d0 += h4 * (5 * r6); + c = (d0 >>> 13); d0 &= 0x1fff; + d0 += h5 * (5 * r5); + d0 += h6 * (5 * r4); + d0 += h7 * (5 * r3); + d0 += h8 * (5 * r2); + d0 += h9 * (5 * r1); + c += (d0 >>> 13); d0 &= 0x1fff; + + d1 = c; + d1 += h0 * r1; + d1 += h1 * r0; + d1 += h2 * (5 * r9); + d1 += h3 * (5 * r8); + d1 += h4 * (5 * r7); + c = (d1 >>> 13); d1 &= 0x1fff; + d1 += h5 * (5 * r6); + d1 += h6 * (5 * r5); + d1 += h7 * (5 * r4); + d1 += h8 * (5 * r3); + d1 += h9 * (5 * r2); + c += (d1 >>> 13); d1 &= 0x1fff; + + d2 = c; + d2 += h0 * r2; + d2 += h1 * r1; + d2 += h2 * r0; + d2 += h3 * (5 * r9); + d2 += h4 * (5 * r8); + c = (d2 >>> 13); d2 &= 0x1fff; + d2 += h5 * (5 * r7); + d2 += h6 * (5 * r6); + d2 += h7 * (5 * r5); + d2 += h8 * (5 * r4); + d2 += h9 * (5 * r3); + c += (d2 >>> 13); d2 &= 0x1fff; + + d3 = c; + d3 += h0 * r3; + d3 += h1 * r2; + d3 += h2 * r1; + d3 += h3 * r0; + d3 += h4 * (5 * r9); + c = (d3 >>> 13); d3 &= 0x1fff; + d3 += h5 * (5 * r8); + d3 += h6 * (5 * r7); + d3 += h7 * (5 * r6); + d3 += h8 * (5 * r5); + d3 += h9 * (5 * r4); + c += (d3 >>> 13); d3 &= 0x1fff; + + d4 = c; + d4 += h0 * r4; + d4 += h1 * r3; + d4 += h2 * r2; + d4 += h3 * r1; + d4 += h4 * r0; + c = (d4 >>> 13); d4 &= 0x1fff; + d4 += h5 * (5 * r9); + d4 += h6 * (5 * r8); + d4 += h7 * (5 * r7); + d4 += h8 * (5 * r6); + d4 += h9 * (5 * r5); + c += (d4 >>> 13); d4 &= 0x1fff; + + d5 = c; + d5 += h0 * r5; + d5 += h1 * r4; + d5 += h2 * r3; + d5 += h3 * r2; + d5 += h4 * r1; + c = (d5 >>> 13); d5 &= 0x1fff; + d5 += h5 * r0; + d5 += h6 * (5 * r9); + d5 += h7 * (5 * r8); + d5 += h8 * (5 * r7); + d5 += h9 * (5 * r6); + c += (d5 >>> 13); d5 &= 0x1fff; + + d6 = c; + d6 += h0 * r6; + d6 += h1 * r5; + d6 += h2 * r4; + d6 += h3 * r3; + d6 += h4 * r2; + c = (d6 >>> 13); d6 &= 0x1fff; + d6 += h5 * r1; + d6 += h6 * r0; + d6 += h7 * (5 * r9); + d6 += h8 * (5 * r8); + d6 += h9 * (5 * r7); + c += (d6 >>> 13); d6 &= 0x1fff; + + d7 = c; + d7 += h0 * r7; + d7 += h1 * r6; + d7 += h2 * r5; + d7 += h3 * r4; + d7 += h4 * r3; + c = (d7 >>> 13); d7 &= 0x1fff; + d7 += h5 * r2; + d7 += h6 * r1; + d7 += h7 * r0; + d7 += h8 * (5 * r9); + d7 += h9 * (5 * r8); + c += (d7 >>> 13); d7 &= 0x1fff; + + d8 = c; + d8 += h0 * r8; + d8 += h1 * r7; + d8 += h2 * r6; + d8 += h3 * r5; + d8 += h4 * r4; + c = (d8 >>> 13); d8 &= 0x1fff; + d8 += h5 * r3; + d8 += h6 * r2; + d8 += h7 * r1; + d8 += h8 * r0; + d8 += h9 * (5 * r9); + c += (d8 >>> 13); d8 &= 0x1fff; + + d9 = c; + d9 += h0 * r9; + d9 += h1 * r8; + d9 += h2 * r7; + d9 += h3 * r6; + d9 += h4 * r5; + c = (d9 >>> 13); d9 &= 0x1fff; + d9 += h5 * r4; + d9 += h6 * r3; + d9 += h7 * r2; + 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; + h3 = d3; + h4 = d4; + h5 = d5; + h6 = d6; + h7 = d7; + h8 = d8; + h9 = d9; + + mpos += 16; + bytes -= 16; + } + this.h[0] = h0; + this.h[1] = h1; + this.h[2] = h2; + this.h[3] = h3; + this.h[4] = h4; + this.h[5] = h5; + this.h[6] = h6; + this.h[7] = h7; + this.h[8] = h8; + this.h[9] = h9; + } + + finish(mac: Uint8Array, macpos: number) { + var g = new Uint16Array(10); + var c, mask, f, i; + + if (this.leftover) { + i = this.leftover; + this.buffer[i++] = 1; + for (; i < 16; i++) this.buffer[i] = 0; + this.fin = 1; + this.blocks(this.buffer, 0, 16); + } + + c = this.h[1] >>> 13; + this.h[1] &= 0x1fff; + for (i = 2; i < 10; i++) { + this.h[i] += c; + c = this.h[i] >>> 13; + this.h[i] &= 0x1fff; + } + this.h[0] += (c * 5); + c = this.h[0] >>> 13; + this.h[0] &= 0x1fff; + this.h[1] += c; + 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; + for (i = 1; i < 10; i++) { + g[i] = this.h[i] + c; + c = g[i] >>> 13; + 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; + this.h[3] = ((this.h[3] >>> 9) | (this.h[4] << 4) ) & 0xffff; + this.h[4] = ((this.h[4] >>> 12) | (this.h[5] << 1) | (this.h[6] << 14)) & 0xffff; + 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; + mac[macpos+ 3] = (this.h[1] >>> 8) & 0xff; + mac[macpos+ 4] = (this.h[2] >>> 0) & 0xff; + mac[macpos+ 5] = (this.h[2] >>> 8) & 0xff; + mac[macpos+ 6] = (this.h[3] >>> 0) & 0xff; + mac[macpos+ 7] = (this.h[3] >>> 8) & 0xff; + mac[macpos+ 8] = (this.h[4] >>> 0) & 0xff; + mac[macpos+ 9] = (this.h[4] >>> 8) & 0xff; + mac[macpos+10] = (this.h[5] >>> 0) & 0xff; + mac[macpos+11] = (this.h[5] >>> 8) & 0xff; + mac[macpos+12] = (this.h[6] >>> 0) & 0xff; + mac[macpos+13] = (this.h[6] >>> 8) & 0xff; + mac[macpos+14] = (this.h[7] >>> 0) & 0xff; + mac[macpos+15] = (this.h[7] >>> 8) & 0xff; + } + + update(m: Uint8Array, mpos: number, bytes: number) { + var i, want; + + if (this.leftover) { + want = (16 - this.leftover); + if (want > bytes) + want = bytes; + for (i = 0; i < want; i++) + this.buffer[this.leftover + i] = m[mpos+i]; + bytes -= want; + mpos += want; + this.leftover += want; + if (this.leftover < 16) + return; + 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: Uint8Array, outpos: number, m: Uint8Array, mpos: number, n: number, k: Uint8Array) { + var s = new poly1305(k); + s.update(m, mpos, n); + s.finish(out, outpos); + return 0; +} + +function crypto_onetimeauth_verify(h: Uint8Array, hpos: number, m: Uint8Array, mpos: number, n: number, k: Uint8Array) { + 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: Uint8Array,m: Uint8Array,d: number,n: Uint8Array,k: Uint8Array) { + 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: Uint8Array,c: Uint8Array,d: number,n: Uint8Array,k: Uint8Array) { + 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: Float64Array, a: Float64Array) { + var i; + for (i = 0; i < 16; i++) r[i] = a[i]|0; +} + +function car25519(o: Float64Array) { + var i, v, c = 1; + for (i = 0; i < 16; i++) { + v = o[i] + c + 65535; + c = Math.floor(v / 65536); + o[i] = v - c * 65536; + } + o[0] += c-1 + 37 * (c-1); +} + +function sel25519(p: Float64Array, q: Float64Array, b: number) { + 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 pack25519(o: Uint8Array, n: Float64Array) { + var i, j, b; + var m = gf(), t = gf(); + for (i = 0; i < 16; i++) t[i] = n[i]; + car25519(t); + car25519(t); + car25519(t); + for (j = 0; j < 2; j++) { + m[0] = t[0] - 0xffed; + for (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; + sel25519(t, m, 1-b); + } + for (i = 0; i < 16; i++) { + o[2*i] = t[i] & 0xff; + o[2*i+1] = t[i]>>8; + } +} + +function neq25519(a: Float64Array, b: Float64Array) { + 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: Float64Array) { + var d = new Uint8Array(32); + pack25519(d, a); + return d[0] & 1; +} + +function unpack25519(o: Float64Array, n: Uint8Array) { + var i; + for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8); + o[15] &= 0x7fff; +} + +function A(o: Float64Array, a: Float64Array, b: Float64Array) { + for (var i = 0; i < 16; i++) o[i] = a[i] + b[i]; +} + +function Z(o: Float64Array, a: Float64Array, b: Float64Array) { + for (var i = 0; i < 16; i++) o[i] = a[i] - b[i]; +} + +function M(o: Float64Array, a: Float64Array, b: Float64Array) { + var v, c, + t0 = 0, t1 = 0, t2 = 0, t3 = 0, t4 = 0, t5 = 0, t6 = 0, t7 = 0, + t8 = 0, t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0, + t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0, + t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0, + b0 = b[0], + b1 = b[1], + b2 = b[2], + b3 = b[3], + b4 = b[4], + b5 = b[5], + b6 = b[6], + b7 = b[7], + b8 = b[8], + b9 = b[9], + b10 = b[10], + b11 = b[11], + b12 = b[12], + b13 = b[13], + b14 = b[14], + b15 = b[15]; + + v = a[0]; + t0 += v * b0; + t1 += v * b1; + t2 += v * b2; + t3 += v * b3; + t4 += v * b4; + t5 += v * b5; + t6 += v * b6; + t7 += v * b7; + t8 += v * b8; + t9 += v * b9; + t10 += v * b10; + t11 += v * b11; + t12 += v * b12; + t13 += v * b13; + t14 += v * b14; + t15 += v * b15; + v = a[1]; + t1 += v * b0; + t2 += v * b1; + t3 += v * b2; + t4 += v * b3; + t5 += v * b4; + t6 += v * b5; + t7 += v * b6; + t8 += v * b7; + t9 += v * b8; + t10 += v * b9; + t11 += v * b10; + t12 += v * b11; + t13 += v * b12; + t14 += v * b13; + t15 += v * b14; + t16 += v * b15; + v = a[2]; + t2 += v * b0; + t3 += v * b1; + t4 += v * b2; + t5 += v * b3; + t6 += v * b4; + t7 += v * b5; + t8 += v * b6; + t9 += v * b7; + t10 += v * b8; + t11 += v * b9; + t12 += v * b10; + t13 += v * b11; + t14 += v * b12; + t15 += v * b13; + t16 += v * b14; + t17 += v * b15; + v = a[3]; + t3 += v * b0; + t4 += v * b1; + t5 += v * b2; + t6 += v * b3; + t7 += v * b4; + t8 += v * b5; + t9 += v * b6; + t10 += v * b7; + t11 += v * b8; + t12 += v * b9; + t13 += v * b10; + t14 += v * b11; + t15 += v * b12; + t16 += v * b13; + t17 += v * b14; + t18 += v * b15; + v = a[4]; + t4 += v * b0; + t5 += v * b1; + t6 += v * b2; + t7 += v * b3; + t8 += v * b4; + t9 += v * b5; + t10 += v * b6; + t11 += v * b7; + t12 += v * b8; + t13 += v * b9; + t14 += v * b10; + t15 += v * b11; + t16 += v * b12; + t17 += v * b13; + t18 += v * b14; + t19 += v * b15; + v = a[5]; + t5 += v * b0; + t6 += v * b1; + t7 += v * b2; + t8 += v * b3; + t9 += v * b4; + t10 += v * b5; + t11 += v * b6; + t12 += v * b7; + t13 += v * b8; + t14 += v * b9; + t15 += v * b10; + t16 += v * b11; + t17 += v * b12; + t18 += v * b13; + t19 += v * b14; + t20 += v * b15; + v = a[6]; + t6 += v * b0; + t7 += v * b1; + t8 += v * b2; + t9 += v * b3; + t10 += v * b4; + t11 += v * b5; + t12 += v * b6; + t13 += v * b7; + t14 += v * b8; + t15 += v * b9; + t16 += v * b10; + t17 += v * b11; + t18 += v * b12; + t19 += v * b13; + t20 += v * b14; + t21 += v * b15; + v = a[7]; + t7 += v * b0; + t8 += v * b1; + t9 += v * b2; + t10 += v * b3; + t11 += v * b4; + t12 += v * b5; + t13 += v * b6; + t14 += v * b7; + t15 += v * b8; + t16 += v * b9; + t17 += v * b10; + t18 += v * b11; + t19 += v * b12; + t20 += v * b13; + t21 += v * b14; + t22 += v * b15; + v = a[8]; + t8 += v * b0; + t9 += v * b1; + t10 += v * b2; + t11 += v * b3; + t12 += v * b4; + t13 += v * b5; + t14 += v * b6; + t15 += v * b7; + t16 += v * b8; + t17 += v * b9; + t18 += v * b10; + t19 += v * b11; + t20 += v * b12; + t21 += v * b13; + t22 += v * b14; + t23 += v * b15; + v = a[9]; + t9 += v * b0; + t10 += v * b1; + t11 += v * b2; + t12 += v * b3; + t13 += v * b4; + t14 += v * b5; + t15 += v * b6; + t16 += v * b7; + t17 += v * b8; + t18 += v * b9; + t19 += v * b10; + t20 += v * b11; + t21 += v * b12; + t22 += v * b13; + t23 += v * b14; + t24 += v * b15; + v = a[10]; + t10 += v * b0; + t11 += v * b1; + t12 += v * b2; + t13 += v * b3; + t14 += v * b4; + t15 += v * b5; + t16 += v * b6; + t17 += v * b7; + t18 += v * b8; + t19 += v * b9; + t20 += v * b10; + t21 += v * b11; + t22 += v * b12; + t23 += v * b13; + t24 += v * b14; + t25 += v * b15; + v = a[11]; + t11 += v * b0; + t12 += v * b1; + t13 += v * b2; + t14 += v * b3; + t15 += v * b4; + t16 += v * b5; + t17 += v * b6; + t18 += v * b7; + t19 += v * b8; + t20 += v * b9; + t21 += v * b10; + t22 += v * b11; + t23 += v * b12; + t24 += v * b13; + t25 += v * b14; + t26 += v * b15; + v = a[12]; + t12 += v * b0; + t13 += v * b1; + t14 += v * b2; + t15 += v * b3; + t16 += v * b4; + t17 += v * b5; + t18 += v * b6; + t19 += v * b7; + t20 += v * b8; + t21 += v * b9; + t22 += v * b10; + t23 += v * b11; + t24 += v * b12; + t25 += v * b13; + t26 += v * b14; + t27 += v * b15; + v = a[13]; + t13 += v * b0; + t14 += v * b1; + t15 += v * b2; + t16 += v * b3; + t17 += v * b4; + t18 += v * b5; + t19 += v * b6; + t20 += v * b7; + t21 += v * b8; + t22 += v * b9; + t23 += v * b10; + t24 += v * b11; + t25 += v * b12; + t26 += v * b13; + t27 += v * b14; + t28 += v * b15; + v = a[14]; + t14 += v * b0; + t15 += v * b1; + t16 += v * b2; + t17 += v * b3; + t18 += v * b4; + t19 += v * b5; + t20 += v * b6; + t21 += v * b7; + t22 += v * b8; + t23 += v * b9; + t24 += v * b10; + t25 += v * b11; + t26 += v * b12; + t27 += v * b13; + t28 += v * b14; + t29 += v * b15; + v = a[15]; + t15 += v * b0; + t16 += v * b1; + t17 += v * b2; + t18 += v * b3; + t19 += v * b4; + t20 += v * b5; + t21 += v * b6; + t22 += v * b7; + t23 += v * b8; + t24 += v * b9; + t25 += v * b10; + t26 += v * b11; + t27 += v * b12; + t28 += v * b13; + t29 += v * b14; + t30 += v * b15; + + t0 += 38 * t16; + t1 += 38 * t17; + t2 += 38 * t18; + t3 += 38 * t19; + t4 += 38 * t20; + t5 += 38 * t21; + t6 += 38 * t22; + t7 += 38 * t23; + t8 += 38 * t24; + t9 += 38 * t25; + t10 += 38 * t26; + t11 += 38 * t27; + t12 += 38 * t28; + 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; + v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536; + v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536; + v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536; + v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536; + v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536; + v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536; + v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536; + v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536; + v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536; + v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536; + v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536; + v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536; + v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536; + 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; + v = t1 + c + 65535; c = Math.floor(v / 65536); t1 = v - c * 65536; + v = t2 + c + 65535; c = Math.floor(v / 65536); t2 = v - c * 65536; + v = t3 + c + 65535; c = Math.floor(v / 65536); t3 = v - c * 65536; + v = t4 + c + 65535; c = Math.floor(v / 65536); t4 = v - c * 65536; + v = t5 + c + 65535; c = Math.floor(v / 65536); t5 = v - c * 65536; + v = t6 + c + 65535; c = Math.floor(v / 65536); t6 = v - c * 65536; + v = t7 + c + 65535; c = Math.floor(v / 65536); t7 = v - c * 65536; + v = t8 + c + 65535; c = Math.floor(v / 65536); t8 = v - c * 65536; + v = t9 + c + 65535; c = Math.floor(v / 65536); t9 = v - c * 65536; + v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536; + v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536; + v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536; + v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536; + 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; + o[ 3] = t3; + o[ 4] = t4; + o[ 5] = t5; + o[ 6] = t6; + o[ 7] = t7; + o[ 8] = t8; + o[ 9] = t9; + o[10] = t10; + o[11] = t11; + o[12] = t12; + o[13] = t13; + o[14] = t14; + o[15] = t15; +} + +function S(o: Float64Array, a: Float64Array) { + M(o, a, a); +} + +function inv25519(o: Float64Array, i: Float64Array) { + var c = gf(); + var a; + for (a = 0; a < 16; a++) c[a] = i[a]; + for (a = 253; a >= 0; a--) { + S(c, c); + if(a !== 2 && a !== 4) M(c, c, i); + } + for (a = 0; a < 16; a++) o[a] = c[a]; +} + +function pow2523(o: Float64Array, i: Float64Array) { + var c = gf(); + var a; + for (a = 0; a < 16; a++) c[a] = i[a]; + for (a = 250; a >= 0; a--) { + S(c, c); + if(a !== 1) M(c, c, i); + } + for (a = 0; a < 16; a++) o[a] = c[a]; +} + +function crypto_scalarmult(q: Uint8Array, n: Uint8Array, p: Uint8Array) { + 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: Uint8Array, n: Uint8Array) { + return crypto_scalarmult(q, n, _9); +} + +function crypto_box_keypair(y: Uint8Array, x: Uint8Array) { + randombytes(x, 32); + return crypto_scalarmult_base(y, x); +} + +function crypto_box_beforenm(k: Uint8Array, y: Uint8Array, x: Uint8Array) { + 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: Uint8Array, m: Uint8Array, d: number, n: Uint8Array, y: Uint8Array, x: Uint8Array) { + 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: Uint8Array, c: Uint8Array, d: number, n: Uint8Array, y: Uint8Array, x: Uint8Array) { + var k = new Uint8Array(32); + crypto_box_beforenm(k, y, x); + return crypto_box_open_afternm(m, c, d, n, k); +} + +// prettier-ignore +var K = [ + 0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd, + 0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc, + 0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019, + 0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118, + 0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe, + 0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2, + 0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1, + 0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694, + 0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3, + 0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65, + 0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483, + 0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5, + 0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210, + 0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4, + 0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725, + 0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70, + 0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926, + 0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df, + 0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8, + 0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b, + 0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001, + 0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30, + 0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910, + 0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8, + 0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53, + 0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8, + 0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb, + 0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3, + 0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60, + 0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec, + 0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9, + 0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b, + 0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207, + 0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178, + 0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6, + 0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b, + 0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493, + 0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c, + 0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a, + 0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817 +]; + +function crypto_hashblocks_hl(hh: Int32Array, hl: Int32Array, m: Uint8Array, n: number) { + 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], + ah3 = hh[3], + ah4 = hh[4], + ah5 = hh[5], + ah6 = hh[6], + ah7 = hh[7], + + al0 = hl[0], + al1 = hl[1], + al2 = hl[2], + al3 = hl[3], + al4 = hl[4], + al5 = hl[5], + al6 = hl[6], + al7 = hl[7]; + + var pos = 0; + while (n >= 128) { + for (i = 0; i < 16; i++) { + j = 8 * i + pos; + wh[i] = (m[j+0] << 24) | (m[j+1] << 16) | (m[j+2] << 8) | m[j+3]; + wl[i] = (m[j+4] << 24) | (m[j+5] << 16) | (m[j+6] << 8) | m[j+7]; + } + for (i = 0; i < 80; i++) { + bh0 = ah0; + bh1 = ah1; + bh2 = ah2; + bh3 = ah3; + bh4 = ah4; + bh5 = ah5; + bh6 = ah6; + bh7 = ah7; + + bl0 = al0; + bl1 = al1; + bl2 = al2; + bl3 = al3; + bl4 = al4; + 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; + ah4 = bh3; + ah5 = bh4; + ah6 = bh5; + ah7 = bh6; + ah0 = bh7; + + al1 = bl0; + al2 = bl1; + al3 = bl2; + al4 = bl3; + al5 = bl4; + 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: Uint8Array, m: Uint8Array, n: number) { + const hh = new Int32Array(8); + const hl = new Int32Array(8); + const x = new Uint8Array(256); + let i; + let b = n; + + hh[0] = 0x6a09e667; + hh[1] = 0xbb67ae85; + hh[2] = 0x3c6ef372; + hh[3] = 0xa54ff53a; + hh[4] = 0x510e527f; + hh[5] = 0x9b05688c; + hh[6] = 0x1f83d9ab; + hh[7] = 0x5be0cd19; + + hl[0] = 0xf3bcc908; + hl[1] = 0x84caa73b; + hl[2] = 0xfe94f82b; + hl[3] = 0x5f1d36f1; + hl[4] = 0xade682d1; + 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 add(p: Float64Array[], q: Float64Array[]) { + 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); + A(b, p[0], p[1]); + A(t, q[0], q[1]); + M(b, b, t); + M(c, p[3], q[3]); + M(c, c, D2); + M(d, p[2], q[2]); + A(d, d, d); + Z(e, b, a); + 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: Float64Array[], q: Float64Array[], b: number) { + var i; + for (i = 0; i < 4; i++) { + sel25519(p[i], q[i], b); + } +} + +function pack(r: Uint8Array, p: Float64Array[]) { + var tx = gf(), ty = gf(), zi = gf(); + inv25519(zi, p[2]); + M(tx, p[0], zi); + M(ty, p[1], zi); + pack25519(r, ty); + r[31] ^= par25519(tx) << 7; +} + +function scalarmult(p: Float64Array[], q: Float64Array[], s: Uint8Array) { + var b, i; + set25519(p[0], gf0); + set25519(p[1], gf1); + set25519(p[2], gf1); + set25519(p[3], gf0); + for (i = 255; i >= 0; --i) { + b = (s[(i/8)|0] >> (i&7)) & 1; + cswap(p, q, b); + add(q, p); + add(p, p); + cswap(p, q, b); + } +} + +function scalarbase(p: Float64Array[], s: Uint8Array) { + const q = [gf(), gf(), gf(), gf()]; + set25519(q[0], X); + set25519(q[1], Y); + set25519(q[2], gf1); + M(q[3], X, Y); + scalarmult(p, q, s); +} + +function crypto_sign_keypair(pk: Uint8Array, sk: Uint8Array, seeded: boolean): number { + const d = new Uint8Array(64); + const p = [gf(), gf(), gf(), gf()]; + + 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 (let 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: Uint8Array, x: Float64Array) { + var carry, i, j, k; + for (i = 63; i >= 32; --i) { + carry = 0; + for (j = i - 32, k = i - 12; j < k; ++j) { + x[j] += carry - 16 * x[i] * L[j - (i - 32)]; + carry = (x[j] + 128) >> 8; + x[j] -= carry * 256; + } + x[j] += carry; + x[i] = 0; + } + carry = 0; + for (j = 0; j < 32; j++) { + x[j] += carry - (x[31] >> 4) * L[j]; + carry = x[j] >> 8; + x[j] &= 255; + } + for (j = 0; j < 32; j++) x[j] -= carry * L[j]; + for (i = 0; i < 32; i++) { + x[i+1] += x[i] >> 8; + r[i] = x[i] & 255; + } +} + +function reduce(r: Uint8Array) { + 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: Uint8Array, m: Uint8Array, n: number, sk: Uint8Array) { + 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++) { + for (j = 0; j < 32; j++) { + x[i+j] += h[i] * d[j]; + } + } + + modL(sm.subarray(32), x); + return smlen; +} + +function unpackneg(r: Float64Array[], p: Uint8Array) { + 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: Uint8Array, sm: Uint8Array, n: number, pk: Uint8Array) { + var i, mlen; + var t = new Uint8Array(32), h = new Uint8Array(64); + var p = [gf(), gf(), gf(), gf()], + q = [gf(), gf(), gf(), gf()]; + + mlen = -1; + 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]; + mlen = n; + return mlen; +} + +var crypto_secretbox_KEYBYTES = 32, + crypto_secretbox_NONCEBYTES = 24, + crypto_secretbox_ZEROBYTES = 32, + crypto_secretbox_BOXZEROBYTES = 16, + crypto_scalarmult_BYTES = 32, + crypto_scalarmult_SCALARBYTES = 32, + crypto_box_PUBLICKEYBYTES = 32, + crypto_box_SECRETKEYBYTES = 32, + crypto_box_BEFORENMBYTES = 32, + crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES, + crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES, + crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES, + crypto_sign_BYTES = 64, + crypto_sign_PUBLICKEYBYTES = 32, + crypto_sign_SECRETKEYBYTES = 64, + crypto_sign_SEEDBYTES = 32, + crypto_hash_BYTES = 64; + + +const lowlevel = { + crypto_core_hsalsa20: crypto_core_hsalsa20, + crypto_stream_xor: crypto_stream_xor, + crypto_stream: crypto_stream, + crypto_stream_salsa20_xor: crypto_stream_salsa20_xor, + crypto_stream_salsa20: crypto_stream_salsa20, + crypto_onetimeauth: crypto_onetimeauth, + crypto_onetimeauth_verify: crypto_onetimeauth_verify, + crypto_verify_16: crypto_verify_16, + crypto_verify_32: crypto_verify_32, + crypto_secretbox: crypto_secretbox, + crypto_secretbox_open: crypto_secretbox_open, + crypto_scalarmult: crypto_scalarmult, + crypto_scalarmult_base: crypto_scalarmult_base, + crypto_box_beforenm: crypto_box_beforenm, + crypto_box_afternm: crypto_box_afternm, + crypto_box: crypto_box, + crypto_box_open: crypto_box_open, + crypto_box_keypair: crypto_box_keypair, + crypto_hash: crypto_hash, + 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, + crypto_secretbox_BOXZEROBYTES: crypto_secretbox_BOXZEROBYTES, + crypto_scalarmult_BYTES: crypto_scalarmult_BYTES, + crypto_scalarmult_SCALARBYTES: crypto_scalarmult_SCALARBYTES, + crypto_box_PUBLICKEYBYTES: crypto_box_PUBLICKEYBYTES, + crypto_box_SECRETKEYBYTES: crypto_box_SECRETKEYBYTES, + crypto_box_BEFORENMBYTES: crypto_box_BEFORENMBYTES, + crypto_box_NONCEBYTES: crypto_box_NONCEBYTES, + crypto_box_ZEROBYTES: crypto_box_ZEROBYTES, + crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES, + crypto_sign_BYTES: crypto_sign_BYTES, + crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES, + crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES, + crypto_sign_SEEDBYTES: crypto_sign_SEEDBYTES, + crypto_hash_BYTES: crypto_hash_BYTES +}; + +/* High-level API */ + +function checkLengths(k: Uint8Array, n: Uint8Array) { + 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: Uint8Array, sk: Uint8Array) { + 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(...args: Uint8Array[]) { + for (var i = 0; i < args.length; i++) { + if (!(args[i] instanceof Uint8Array)) + throw new TypeError('unexpected type, use Uint8Array'); + } +} + +function cleanup(arr: Uint8Array) { + for (var i = 0; i < arr.length; i++) arr[i] = 0; +} + +export function randomBytes(n: number) { + var b = new Uint8Array(n); + randombytes(b, n); + return b; +}; + +export function secretbox(msg: Uint8Array, nonce: Uint8Array, key: Uint8Array) { + checkArrayTypes(msg, nonce, key); + checkLengths(key, nonce); + var m = new Uint8Array(crypto_secretbox_ZEROBYTES + msg.length); + var c = new Uint8Array(m.length); + for (var i = 0; i < msg.length; i++) m[i+crypto_secretbox_ZEROBYTES] = msg[i]; + crypto_secretbox(c, m, m.length, nonce, key); + return c.subarray(crypto_secretbox_BOXZEROBYTES); +}; + + +export function secretbox_open(box: Uint8Array, nonce: Uint8Array, key: Uint8Array) { + checkArrayTypes(box, nonce, key); + checkLengths(key, nonce); + var c = new Uint8Array(crypto_secretbox_BOXZEROBYTES + box.length); + var m = new Uint8Array(c.length); + for (var i = 0; i < box.length; i++) c[i+crypto_secretbox_BOXZEROBYTES] = box[i]; + if (c.length < 32) return null; + if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return null; + return m.subarray(crypto_secretbox_ZEROBYTES); +}; + +export const secretbox_keyLength = crypto_secretbox_KEYBYTES; +export const secretbox_nonceLength = crypto_secretbox_NONCEBYTES; +export const secretbox_overheadLength = crypto_secretbox_BOXZEROBYTES; + +export function scalarMult(n: Uint8Array, p: Uint8Array) { + checkArrayTypes(n, p); + if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size'); + if (p.length !== crypto_scalarmult_BYTES) throw new Error('bad p size'); + var q = new Uint8Array(crypto_scalarmult_BYTES); + crypto_scalarmult(q, n, p); + return q; +}; + +export function scalarMult_base(n: Uint8Array) { + checkArrayTypes(n); + if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size'); + var q = new Uint8Array(crypto_scalarmult_BYTES); + crypto_scalarmult_base(q, n); + return q; +}; + +export const scalarMult_scalarLength = crypto_scalarmult_SCALARBYTES; +export const scalarMult_groupElementLength = crypto_scalarmult_BYTES; + +export function box(msg: Uint8Array, nonce: Uint8Array, publicKey: Uint8Array, secretKey: Uint8Array) { + var k = box_before(publicKey, secretKey); + return secretbox(msg, nonce, k); +}; + +export function box_before(publicKey: Uint8Array, secretKey: Uint8Array) { + checkArrayTypes(publicKey, secretKey); + checkBoxLengths(publicKey, secretKey); + var k = new Uint8Array(crypto_box_BEFORENMBYTES); + crypto_box_beforenm(k, publicKey, secretKey); + return k; +}; + +export const box_after = secretbox; + +export function box_open(msg: Uint8Array, nonce: Uint8Array, publicKey: Uint8Array, secretKey: Uint8Array) { + var k = box_before(publicKey, secretKey); + return secretbox_open(msg, nonce, k); +}; + +export const box_open_after = secretbox_open; + +export function box_keyPair() { + var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES); + var sk = new Uint8Array(crypto_box_SECRETKEYBYTES); + crypto_box_keypair(pk, sk); + return {publicKey: pk, secretKey: sk}; +}; + +export function box_keyPair_fromSecretKey(secretKey: Uint8Array) { + 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)}; +}; + +export const box_publicKeyLength = crypto_box_PUBLICKEYBYTES; +export const box_secretKeyLength = crypto_box_SECRETKEYBYTES; +export const box_sharedKeyLength = crypto_box_BEFORENMBYTES; +export const box_nonceLength = crypto_box_NONCEBYTES; +export const box_overheadLength = secretbox_overheadLength; + +export function sign(msg: Uint8Array, secretKey: Uint8Array) { + checkArrayTypes(msg, secretKey); + if (secretKey.length !== crypto_sign_SECRETKEYBYTES) + throw new Error('bad secret key size'); + var signedMsg = new Uint8Array(crypto_sign_BYTES+msg.length); + crypto_sign(signedMsg, msg, msg.length, secretKey); + return signedMsg; +}; + +export function sign_open(signedMsg: Uint8Array, publicKey: Uint8Array) { + checkArrayTypes(signedMsg, publicKey); + if (publicKey.length !== crypto_sign_PUBLICKEYBYTES) + throw new Error('bad public key size'); + var tmp = new Uint8Array(signedMsg.length); + var mlen = crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey); + if (mlen < 0) return null; + var m = new Uint8Array(mlen); + for (var i = 0; i < m.length; i++) m[i] = tmp[i]; + return m; +}; + +export function sign_detached(msg: Uint8Array, secretKey: Uint8Array) { + 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; +}; + +export function sign_detached_verify(msg: Uint8Array, sig: Uint8Array, publicKey: Uint8Array) { + checkArrayTypes(msg, sig, publicKey); + if (sig.length !== crypto_sign_BYTES) + throw new Error('bad signature size'); + if (publicKey.length !== crypto_sign_PUBLICKEYBYTES) + throw new Error('bad public key size'); + var sm = new Uint8Array(crypto_sign_BYTES + msg.length); + var m = new Uint8Array(crypto_sign_BYTES + msg.length); + var i; + for (i = 0; i < crypto_sign_BYTES; i++) sm[i] = sig[i]; + for (i = 0; i < msg.length; i++) sm[i+crypto_sign_BYTES] = msg[i]; + return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0); +}; + +export function sign_keyPair() { + var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES); + var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES); + crypto_sign_keypair(pk, sk, false); + return {publicKey: pk, secretKey: sk}; +}; + +export function x25519_edwards_keyPair_fromSecretKey(secretKey: Uint8Array): Uint8Array { + const p = [gf(), gf(), gf(), gf()]; + const pk = new Uint8Array(32); + + const d = new Uint8Array(64) + if (secretKey.length != 32) { + throw new Error("bad secret key size"); + } + d.set(secretKey, 0); + //crypto_hash(d, secretKey, 32); + + d[0] &= 248; + d[31] &= 127; + d[31] |= 64; + + scalarbase(p, d); + pack(pk, p); + + return pk +} + +export function sign_keyPair_fromSecretKey(secretKey: Uint8Array) { + checkArrayTypes(secretKey); + if (secretKey.length !== crypto_sign_SECRETKEYBYTES) + throw new Error('bad secret key size'); + var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES); + for (var i = 0; i < pk.length; i++) pk[i] = secretKey[32+i]; + return {publicKey: pk, secretKey: new Uint8Array(secretKey)}; +}; + +export function sign_keyPair_fromSeed(seed: Uint8Array) { + checkArrayTypes(seed); + if (seed.length !== crypto_sign_SEEDBYTES) + throw new Error('bad seed size'); + var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES); + var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES); + for (var i = 0; i < 32; i++) sk[i] = seed[i]; + crypto_sign_keypair(pk, sk, true); + return {publicKey: pk, secretKey: sk}; +}; + +export const sign_publicKeyLength = crypto_sign_PUBLICKEYBYTES; +export const sign_secretKeyLength = crypto_sign_SECRETKEYBYTES; +export const sign_seedLength = crypto_sign_SEEDBYTES; +export const sign_signatureLength = crypto_sign_BYTES; + +export function hash(msg: Uint8Array) { + checkArrayTypes(msg); + var h = new Uint8Array(crypto_hash_BYTES); + crypto_hash(h, msg, msg.length); + return h; +}; + +export const hash_hashLength = crypto_hash_BYTES; + +export function verify(x: Uint8Array, y: Uint8Array) { + checkArrayTypes(x, y); + // Zero length arguments are considered not equal. + if (x.length === 0 || y.length === 0) return false; + if (x.length !== y.length) return false; + return (vn(x, 0, y, 0, x.length) === 0) ? true : false; +} + +export function setPRNG(fn: (x: Uint8Array, n: number) => void) { + randombytes = fn; +} + +(function() { + // Initialize PRNG if environment provides CSPRNG. + // If not, methods calling randombytes will throw. + const crypto = typeof self !== 'undefined' ? (self.crypto || (self as any).msCrypto) : null; + if (crypto && crypto.getRandomValues) { + // Browsers. + var QUOTA = 65536; + setPRNG(function(x: Uint8Array, n: number) { + var i, v = new Uint8Array(n); + for (i = 0; i < n; i += QUOTA) { + crypto.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA))); + } + for (i = 0; i < n; i++) x[i] = v[i]; + cleanup(v); + }); + } else if (typeof require !== 'undefined') { + // Node.js. + const cr = require('crypto'); + if (cr && cr.randomBytes) { + setPRNG(function(x: Uint8Array, n: number) { + var i, v = cr.randomBytes(n); + for (i = 0; i < n; i++) x[i] = v[i]; + cleanup(v); + }); + } + } +})();
\ No newline at end of file diff --git a/src/crypto/nativeCrypto-test.ts b/src/crypto/nativeCrypto-test.ts index 7b9fcf256..c38110577 100644 --- a/src/crypto/nativeCrypto-test.ts +++ b/src/crypto/nativeCrypto-test.ts @@ -19,9 +19,25 @@ */ import test from "ava"; import { encodeCrock, decodeCrock } from "./nativeCrypto"; +import { hmacSha512, sha512 } from "./kdf"; +import nacl = require("./nacl-fast"); +function hexToBytes(hex: string) { + for (var bytes = [], c = 0; c < hex.length; c += 2) + bytes.push(parseInt(hex.substr(c, 2), 16)); + return bytes; +} -test("encoding", (t) => { +function bytesToHex(bytes: Uint8Array): string { + for (var hex = [], i = 0; i < bytes.length; i++) { + var current = bytes[i] < 0 ? bytes[i] + 256 : bytes[i]; + hex.push((current >>> 4).toString(16)); + hex.push((current & 0xf).toString(16)); + } + return hex.join(""); +} + +test("encoding", t => { const utf8decoder = new TextDecoder("utf-8"); const utf8encoder = new TextEncoder(); const s = "Hello, World"; @@ -29,4 +45,41 @@ test("encoding", (t) => { const outBuf = decodeCrock(encStr); const sOut = utf8decoder.decode(outBuf); t.deepEqual(s, sOut); -});
\ No newline at end of file +}); + +test("taler-exchange-tvg hash code", t => { + const input = "91JPRV3F5GG4EKJN41A62V35E8"; + const output = + "CW96WR74JS8T53EC8GKSGD49QKH4ZNFTZXDAWMMV5GJ1E4BM6B8GPN5NVHDJ8ZVXNCW7Q4WBYCV61HCA3PZC2YJD850DT29RHHN7ESR"; + + const myOutput = encodeCrock(sha512(decodeCrock(input))); + + t.deepEqual(myOutput, output); +}); + +test("taler-exchange-tvg ecdhe key", t => { + const priv1 = "YSYA38XH1PH40ZPSEZCXEFX9PH9Q3A2PE19FHM54DMTZ4MAPH9S0"; + const pub1 = "GNQRNSYF4BT4V0EV0DBXZCHFVQ79ATP0KBJ9EAY18FGSY513A5VG"; + + const myPub = nacl.x25519_edwards_keyPair_fromSecretKey(decodeCrock(priv1)) + t.deepEqual(encodeCrock(myPub), pub1); + + //const myPub1 = nacl.scalarMult.base(decodeCrock(priv1)); + //t.deepEqual(encodeCrock(myPub1), pub1); + + //const p = nacl.box.keyPair.fromSecretKey(decodeCrock(priv1)) + //t.deepEqual(encodeCrock(p.publicKey), pub1); + + //const r = nacl.scalarMult(decodeCrock(priv2), decodeCrock(pub1)); + //t.deepEqual(encodeCrock(nacl.hash(r)), skm); + + //const mySkm = nacl. +}); + +test("taler-exchange-tvg eddsa key", t => { + const priv = "H2JGQ2T3A5WBC5QV3YRFE31AMRGF2F9WPXZ03EM3NS3PYHM80WA0"; + const pub = "QFGMB2WTPYXMXZRPFYFEM2VMQ028M71JMECF31P3J8VC3SCJ777G"; + + const pair = nacl.sign_keyPair_fromSeed(decodeCrock(priv)); + t.deepEqual(encodeCrock(pair.publicKey), pub); +}); diff --git a/src/crypto/nativeCrypto.ts b/src/crypto/nativeCrypto.ts index 853ece6c7..306d22009 100644 --- a/src/crypto/nativeCrypto.ts +++ b/src/crypto/nativeCrypto.ts @@ -110,13 +110,13 @@ export function encodeCrock(data: ArrayBuffer): string { return sb; } -export function decodeCrock(encoded: string): ArrayBuffer { +export function decodeCrock(encoded: string): Uint8Array { const size = encoded.length; let bitpos = 0; let bitbuf = 0; let readPosition = 0; const outLen = Math.floor((size * 5) / 8); - const out = new Int8Array(outLen); + const out = new Uint8Array(outLen); let outPos = 0; while (readPosition < size || bitpos > 0) { diff --git a/src/crypto/sha256.ts b/src/crypto/sha256.ts new file mode 100644 index 000000000..f4f6690c7 --- /dev/null +++ b/src/crypto/sha256.ts @@ -0,0 +1,429 @@ +// SHA-256 for JavaScript. +// +// Written in 2014-2016 by Dmitry Chestnykh. +// Public domain, no warranty. +// +// Functions (accept and return Uint8Arrays): +// +// sha256(message) -> hash +// sha256.hmac(key, message) -> mac +// +// Classes: +// +// new sha256.Hash() +export const digestLength: number = 32; +export const blockSize: number = 64; + +// SHA-256 constants +const K = new Uint32Array([ + 0x428a2f98, + 0x71374491, + 0xb5c0fbcf, + 0xe9b5dba5, + 0x3956c25b, + 0x59f111f1, + 0x923f82a4, + 0xab1c5ed5, + 0xd807aa98, + 0x12835b01, + 0x243185be, + 0x550c7dc3, + 0x72be5d74, + 0x80deb1fe, + 0x9bdc06a7, + 0xc19bf174, + 0xe49b69c1, + 0xefbe4786, + 0x0fc19dc6, + 0x240ca1cc, + 0x2de92c6f, + 0x4a7484aa, + 0x5cb0a9dc, + 0x76f988da, + 0x983e5152, + 0xa831c66d, + 0xb00327c8, + 0xbf597fc7, + 0xc6e00bf3, + 0xd5a79147, + 0x06ca6351, + 0x14292967, + 0x27b70a85, + 0x2e1b2138, + 0x4d2c6dfc, + 0x53380d13, + 0x650a7354, + 0x766a0abb, + 0x81c2c92e, + 0x92722c85, + 0xa2bfe8a1, + 0xa81a664b, + 0xc24b8b70, + 0xc76c51a3, + 0xd192e819, + 0xd6990624, + 0xf40e3585, + 0x106aa070, + 0x19a4c116, + 0x1e376c08, + 0x2748774c, + 0x34b0bcb5, + 0x391c0cb3, + 0x4ed8aa4a, + 0x5b9cca4f, + 0x682e6ff3, + 0x748f82ee, + 0x78a5636f, + 0x84c87814, + 0x8cc70208, + 0x90befffa, + 0xa4506ceb, + 0xbef9a3f7, + 0xc67178f2, +]); + +function hashBlocks( + w: Int32Array, + v: Int32Array, + p: Uint8Array, + pos: number, + len: number, +): number { + let a: number, + b: number, + c: number, + d: number, + e: number, + f: number, + g: number, + h: number, + u: number, + i: number, + j: number, + t1: number, + t2: number; + while (len >= 64) { + a = v[0]; + b = v[1]; + c = v[2]; + d = v[3]; + e = v[4]; + f = v[5]; + g = v[6]; + h = v[7]; + + for (i = 0; i < 16; i++) { + j = pos + i * 4; + w[i] = + ((p[j] & 0xff) << 24) | + ((p[j + 1] & 0xff) << 16) | + ((p[j + 2] & 0xff) << 8) | + (p[j + 3] & 0xff); + } + + for (i = 16; i < 64; i++) { + u = w[i - 2]; + t1 = + ((u >>> 17) | (u << (32 - 17))) ^ + ((u >>> 19) | (u << (32 - 19))) ^ + (u >>> 10); + + u = w[i - 15]; + t2 = + ((u >>> 7) | (u << (32 - 7))) ^ + ((u >>> 18) | (u << (32 - 18))) ^ + (u >>> 3); + + w[i] = ((t1 + w[i - 7]) | 0) + ((t2 + w[i - 16]) | 0); + } + + for (i = 0; i < 64; i++) { + t1 = + ((((((e >>> 6) | (e << (32 - 6))) ^ + ((e >>> 11) | (e << (32 - 11))) ^ + ((e >>> 25) | (e << (32 - 25)))) + + ((e & f) ^ (~e & g))) | + 0) + + ((h + ((K[i] + w[i]) | 0)) | 0)) | + 0; + + t2 = + ((((a >>> 2) | (a << (32 - 2))) ^ + ((a >>> 13) | (a << (32 - 13))) ^ + ((a >>> 22) | (a << (32 - 22)))) + + ((a & b) ^ (a & c) ^ (b & c))) | + 0; + + h = g; + g = f; + f = e; + e = (d + t1) | 0; + d = c; + c = b; + b = a; + a = (t1 + t2) | 0; + } + + v[0] += a; + v[1] += b; + v[2] += c; + v[3] += d; + v[4] += e; + v[5] += f; + v[6] += g; + v[7] += h; + + pos += 64; + len -= 64; + } + return pos; +} + +// Hash implements SHA256 hash algorithm. +export class HashSha256 { + digestLength: number = digestLength; + blockSize: number = blockSize; + + // Note: Int32Array is used instead of Uint32Array for performance reasons. + private state: Int32Array = new Int32Array(8); // hash state + private temp: Int32Array = new Int32Array(64); // temporary state + private buffer: Uint8Array = new Uint8Array(128); // buffer for data to hash + private bufferLength: number = 0; // number of bytes in buffer + private bytesHashed: number = 0; // number of total bytes hashed + + finished: boolean = false; // indicates whether the hash was finalized + + constructor() { + this.reset(); + } + + // Resets hash state making it possible + // to re-use this instance to hash other data. + reset(): this { + this.state[0] = 0x6a09e667; + this.state[1] = 0xbb67ae85; + this.state[2] = 0x3c6ef372; + this.state[3] = 0xa54ff53a; + this.state[4] = 0x510e527f; + this.state[5] = 0x9b05688c; + this.state[6] = 0x1f83d9ab; + this.state[7] = 0x5be0cd19; + this.bufferLength = 0; + this.bytesHashed = 0; + this.finished = false; + return this; + } + + // Cleans internal buffers and re-initializes hash state. + clean() { + for (let i = 0; i < this.buffer.length; i++) { + this.buffer[i] = 0; + } + for (let i = 0; i < this.temp.length; i++) { + this.temp[i] = 0; + } + this.reset(); + } + + // Updates hash state with the given data. + // + // Optionally, length of the data can be specified to hash + // fewer bytes than data.length. + // + // Throws error when trying to update already finalized hash: + // instance must be reset to use it again. + update(data: Uint8Array, dataLength: number = data.length): this { + if (this.finished) { + throw new Error("SHA256: can't update because hash was finished."); + } + let dataPos = 0; + this.bytesHashed += dataLength; + if (this.bufferLength > 0) { + while (this.bufferLength < 64 && dataLength > 0) { + this.buffer[this.bufferLength++] = data[dataPos++]; + dataLength--; + } + if (this.bufferLength === 64) { + hashBlocks(this.temp, this.state, this.buffer, 0, 64); + this.bufferLength = 0; + } + } + if (dataLength >= 64) { + dataPos = hashBlocks(this.temp, this.state, data, dataPos, dataLength); + dataLength %= 64; + } + while (dataLength > 0) { + this.buffer[this.bufferLength++] = data[dataPos++]; + dataLength--; + } + return this; + } + + // Finalizes hash state and puts hash into out. + // + // If hash was already finalized, puts the same value. + finish(out: Uint8Array): this { + if (!this.finished) { + const bytesHashed = this.bytesHashed; + const left = this.bufferLength; + const bitLenHi = (bytesHashed / 0x20000000) | 0; + const bitLenLo = bytesHashed << 3; + const padLength = bytesHashed % 64 < 56 ? 64 : 128; + + this.buffer[left] = 0x80; + for (let i = left + 1; i < padLength - 8; i++) { + this.buffer[i] = 0; + } + this.buffer[padLength - 8] = (bitLenHi >>> 24) & 0xff; + this.buffer[padLength - 7] = (bitLenHi >>> 16) & 0xff; + this.buffer[padLength - 6] = (bitLenHi >>> 8) & 0xff; + this.buffer[padLength - 5] = (bitLenHi >>> 0) & 0xff; + this.buffer[padLength - 4] = (bitLenLo >>> 24) & 0xff; + this.buffer[padLength - 3] = (bitLenLo >>> 16) & 0xff; + this.buffer[padLength - 2] = (bitLenLo >>> 8) & 0xff; + this.buffer[padLength - 1] = (bitLenLo >>> 0) & 0xff; + + hashBlocks(this.temp, this.state, this.buffer, 0, padLength); + + this.finished = true; + } + + for (let i = 0; i < 8; i++) { + out[i * 4 + 0] = (this.state[i] >>> 24) & 0xff; + out[i * 4 + 1] = (this.state[i] >>> 16) & 0xff; + out[i * 4 + 2] = (this.state[i] >>> 8) & 0xff; + out[i * 4 + 3] = (this.state[i] >>> 0) & 0xff; + } + + return this; + } + + // Returns the final hash digest. + digest(): Uint8Array { + const out = new Uint8Array(this.digestLength); + this.finish(out); + return out; + } + + // Internal function for use in HMAC for optimization. + _saveState(out: Uint32Array) { + for (let i = 0; i < this.state.length; i++) { + out[i] = this.state[i]; + } + } + + // Internal function for use in HMAC for optimization. + _restoreState(from: Uint32Array, bytesHashed: number) { + for (let i = 0; i < this.state.length; i++) { + this.state[i] = from[i]; + } + this.bytesHashed = bytesHashed; + this.finished = false; + this.bufferLength = 0; + } +} + +// HMAC implements HMAC-SHA256 message authentication algorithm. +export class HMAC { + private inner: HashSha256 = new HashSha256(); + private outer: HashSha256 = new HashSha256(); + + blockSize: number = this.inner.blockSize; + digestLength: number = this.inner.digestLength; + + // Copies of hash states after keying. + // Need for quick reset without hashing they key again. + private istate: Uint32Array; + private ostate: Uint32Array; + + constructor(key: Uint8Array) { + const pad = new Uint8Array(this.blockSize); + if (key.length > this.blockSize) { + new HashSha256() + .update(key) + .finish(pad) + .clean(); + } else { + for (let i = 0; i < key.length; i++) { + pad[i] = key[i]; + } + } + for (let i = 0; i < pad.length; i++) { + pad[i] ^= 0x36; + } + this.inner.update(pad); + + for (let i = 0; i < pad.length; i++) { + pad[i] ^= 0x36 ^ 0x5c; + } + this.outer.update(pad); + + this.istate = new Uint32Array(8); + this.ostate = new Uint32Array(8); + + this.inner._saveState(this.istate); + this.outer._saveState(this.ostate); + + for (let i = 0; i < pad.length; i++) { + pad[i] = 0; + } + } + + // Returns HMAC state to the state initialized with key + // to make it possible to run HMAC over the other data with the same + // key without creating a new instance. + reset(): this { + this.inner._restoreState(this.istate, this.inner.blockSize); + this.outer._restoreState(this.ostate, this.outer.blockSize); + return this; + } + + // Cleans HMAC state. + clean() { + for (let i = 0; i < this.istate.length; i++) { + this.ostate[i] = this.istate[i] = 0; + } + this.inner.clean(); + this.outer.clean(); + } + + // Updates state with provided data. + update(data: Uint8Array): this { + this.inner.update(data); + return this; + } + + // Finalizes HMAC and puts the result in out. + finish(out: Uint8Array): this { + if (this.outer.finished) { + this.outer.finish(out); + } else { + this.inner.finish(out); + this.outer.update(out, this.digestLength).finish(out); + } + return this; + } + + // Returns message authentication code. + digest(): Uint8Array { + const out = new Uint8Array(this.digestLength); + this.finish(out); + return out; + } +} + +// Returns SHA256 hash of data. +export function sha256(data: Uint8Array): Uint8Array { + const h = new HashSha256().update(data); + const digest = h.digest(); + h.clean(); + return digest; +} + +// Returns HMAC-SHA256 of data under the key. +export function hmacSha256(key: Uint8Array, data: Uint8Array) { + const h = new HMAC(key).update(data); + const digest = h.digest(); + h.clean(); + return digest; +} |