crypto porting WIP
This commit is contained in:
Florian Dold
parent
de9f8867d5
commit
d42b9e3df8
@ -20,6 +20,10 @@ import test from "ava";
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import { NodeEmscriptenLoader } from "./nodeEmscriptenLoader";
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import * as native from "./emscInterface";
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import nacl = require("./nacl-fast");
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import { encodeCrock, decodeCrock } from "./nativeCrypto";
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import { timestampCheck } from "../helpers";
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test("string hashing", async (t) => {
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const loader = new NodeEmscriptenLoader();
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@ -30,6 +34,16 @@ test("string hashing", async (t) => {
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const hc = x.hash().toCrock();
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console.log(`# hc ${hc}`);
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t.true(h === hc, "must equal");
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const te = new TextEncoder();
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const x2 = te.encode("hello taler\0")
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const hc2 = encodeCrock(nacl.hash(x2));
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console.log(`# hc2 ${hc}`);
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t.true(h === hc2);
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t.pass();
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});
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@ -39,11 +53,45 @@ test("signing", async (t) => {
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const emsc = await loader.getEmscriptenEnvironment();
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const x = native.ByteArray.fromStringWithNull(emsc, "hello taler");
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const priv = native.EddsaPrivateKey.create(emsc, );
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const priv = native.EddsaPrivateKey.create(emsc);
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const pub = priv.getPublicKey();
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const purpose = new native.EccSignaturePurpose(emsc, native.SignaturePurpose.TEST, x);
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const purposeDataCrock = purpose.toCrock();
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const privCrock = priv.toCrock();
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const pubCrock = pub.toCrock();
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const sig = native.eddsaSign(purpose, priv);
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console.time("a");
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for (let i = 0; i < 5000; i++) {
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const sig = native.eddsaSign(purpose, priv);
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}
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console.timeEnd("a");
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t.true(native.eddsaVerify(native.SignaturePurpose.TEST, purpose, sig, pub));
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console.log("priv size", decodeCrock(privCrock).byteLength);
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const pair = nacl.sign_keyPair_fromSeed(new Uint8Array(decodeCrock(privCrock)));
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console.log("emsc priv", privCrock);
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console.log("emsc pub", pubCrock);
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console.log("nacl priv", encodeCrock(pair.secretKey));
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console.log("nacl pub", encodeCrock(pair.publicKey));
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const d2 = new Uint8Array(decodeCrock(purposeDataCrock));
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const d3 = nacl.hash(d2);
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console.time("b");
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for (let i = 0; i < 5000; i++) {
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const s2 = nacl.sign_detached(d3, pair.secretKey);
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}
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console.timeEnd("b");
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const s2 = nacl.sign_detached(d3, pair.secretKey);
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console.log("sig1:", sig.toCrock());
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console.log("sig2:", encodeCrock(s2));
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t.pass();
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});
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100
src/crypto/kdf.ts
Normal file
100
src/crypto/kdf.ts
Normal file
@ -0,0 +1,100 @@
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/*
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This file is part of GNU Taler
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(C) 2019 GNUnet e.V.
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GNU Taler is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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import nacl = require("./nacl-fast");
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import { sha256 } from "./sha256";
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let createHmac: any;
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export function sha512(data: Uint8Array): Uint8Array {
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return nacl.hash(data);
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}
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export function hmac(
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digest: (d: Uint8Array) => Uint8Array,
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blockSize: number,
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key: Uint8Array,
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message: Uint8Array,
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): Uint8Array {
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if (key.byteLength > blockSize) {
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key = digest(key);
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}
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console.log("message", message);
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if (key.byteLength < blockSize) {
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const k = key;
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key = new Uint8Array(blockSize);
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key.set(k, 0);
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}
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const okp = new Uint8Array(blockSize);
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const ikp = new Uint8Array(blockSize);
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for (let i = 0; i < blockSize; i++) {
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ikp[i] = key[i] ^ 0x36;
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okp[i] = key[i] ^ 0x5c;
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}
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const b1 = new Uint8Array(blockSize + message.byteLength);
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b1.set(ikp, 0);
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b1.set(message, blockSize);
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const h0 = digest(b1);
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const b2 = new Uint8Array(blockSize + h0.length);
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b2.set(okp, 0);
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b2.set(h0, blockSize);
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return digest(b2);
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}
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export function hmacSha512(key: Uint8Array, message: Uint8Array) {
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return hmac(sha512, 128, key, message);
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}
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export function hmacSha256(key: Uint8Array, message: Uint8Array) {
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return hmac(sha256, 64, key, message);
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}
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/*
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function expand(prfAlgo: string, prk: Uint8Array, length: number, info: Uint8Array) {
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let hashLength;
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if (prfAlgo == "sha512") {
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hashLength = 64;
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} else if (prfAlgo == "sha256") {
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hashLength = 32;
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} else {
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throw Error("unsupported hash");
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}
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info = info || Buffer.alloc(0);
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var N = Math.ceil(length / hashLength);
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var memo: Buffer[] = [];
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for (var i = 0; i < N; i++) {
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memo[i] = createHmac(prfAlgo, prk)
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.update(memo[i - 1] || Buffer.alloc(0))
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.update(info)
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.update(Buffer.alloc(1, i + 1))
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.digest();
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}
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return Buffer.concat(memo, length);
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}
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*/
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export function kdf(ikm: Uint8Array, salt: Uint8Array, info: Uint8Array) {
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// extract
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const prk = hmacSha512(salt, ikm);
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// expand
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var N = Math.ceil(length / 256);
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//return expand(prfAlgo, prk, length, info);
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return prk;
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}
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2404
src/crypto/nacl-fast.ts
Normal file
2404
src/crypto/nacl-fast.ts
Normal file
File diff suppressed because it is too large
Load Diff
@ -19,9 +19,25 @@
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*/
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import test from "ava";
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import { encodeCrock, decodeCrock } from "./nativeCrypto";
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import { hmacSha512, sha512 } from "./kdf";
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import nacl = require("./nacl-fast");
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function hexToBytes(hex: string) {
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for (var bytes = [], c = 0; c < hex.length; c += 2)
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bytes.push(parseInt(hex.substr(c, 2), 16));
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return bytes;
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}
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test("encoding", (t) => {
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function bytesToHex(bytes: Uint8Array): string {
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for (var hex = [], i = 0; i < bytes.length; i++) {
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var current = bytes[i] < 0 ? bytes[i] + 256 : bytes[i];
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hex.push((current >>> 4).toString(16));
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hex.push((current & 0xf).toString(16));
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}
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return hex.join("");
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}
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test("encoding", t => {
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const utf8decoder = new TextDecoder("utf-8");
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const utf8encoder = new TextEncoder();
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const s = "Hello, World";
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@ -29,4 +45,41 @@ test("encoding", (t) => {
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const outBuf = decodeCrock(encStr);
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const sOut = utf8decoder.decode(outBuf);
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t.deepEqual(s, sOut);
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});
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});
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test("taler-exchange-tvg hash code", t => {
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const input = "91JPRV3F5GG4EKJN41A62V35E8";
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const output =
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"CW96WR74JS8T53EC8GKSGD49QKH4ZNFTZXDAWMMV5GJ1E4BM6B8GPN5NVHDJ8ZVXNCW7Q4WBYCV61HCA3PZC2YJD850DT29RHHN7ESR";
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const myOutput = encodeCrock(sha512(decodeCrock(input)));
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t.deepEqual(myOutput, output);
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});
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test("taler-exchange-tvg ecdhe key", t => {
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const priv1 = "YSYA38XH1PH40ZPSEZCXEFX9PH9Q3A2PE19FHM54DMTZ4MAPH9S0";
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const pub1 = "GNQRNSYF4BT4V0EV0DBXZCHFVQ79ATP0KBJ9EAY18FGSY513A5VG";
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const myPub = nacl.x25519_edwards_keyPair_fromSecretKey(decodeCrock(priv1))
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t.deepEqual(encodeCrock(myPub), pub1);
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//const myPub1 = nacl.scalarMult.base(decodeCrock(priv1));
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//t.deepEqual(encodeCrock(myPub1), pub1);
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//const p = nacl.box.keyPair.fromSecretKey(decodeCrock(priv1))
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//t.deepEqual(encodeCrock(p.publicKey), pub1);
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//const r = nacl.scalarMult(decodeCrock(priv2), decodeCrock(pub1));
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//t.deepEqual(encodeCrock(nacl.hash(r)), skm);
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//const mySkm = nacl.
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});
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test("taler-exchange-tvg eddsa key", t => {
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const priv = "H2JGQ2T3A5WBC5QV3YRFE31AMRGF2F9WPXZ03EM3NS3PYHM80WA0";
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const pub = "QFGMB2WTPYXMXZRPFYFEM2VMQ028M71JMECF31P3J8VC3SCJ777G";
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const pair = nacl.sign_keyPair_fromSeed(decodeCrock(priv));
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t.deepEqual(encodeCrock(pair.publicKey), pub);
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});
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@ -110,13 +110,13 @@ export function encodeCrock(data: ArrayBuffer): string {
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return sb;
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}
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export function decodeCrock(encoded: string): ArrayBuffer {
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export function decodeCrock(encoded: string): Uint8Array {
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const size = encoded.length;
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let bitpos = 0;
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let bitbuf = 0;
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let readPosition = 0;
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const outLen = Math.floor((size * 5) / 8);
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const out = new Int8Array(outLen);
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const out = new Uint8Array(outLen);
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let outPos = 0;
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while (readPosition < size || bitpos > 0) {
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429
src/crypto/sha256.ts
Normal file
429
src/crypto/sha256.ts
Normal file
@ -0,0 +1,429 @@
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// SHA-256 for JavaScript.
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//
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// Written in 2014-2016 by Dmitry Chestnykh.
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// Public domain, no warranty.
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//
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// Functions (accept and return Uint8Arrays):
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//
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// sha256(message) -> hash
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// sha256.hmac(key, message) -> mac
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//
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// Classes:
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//
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// new sha256.Hash()
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export const digestLength: number = 32;
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export const blockSize: number = 64;
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// SHA-256 constants
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const K = new Uint32Array([
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0x428a2f98,
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0x71374491,
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0xb5c0fbcf,
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0xe9b5dba5,
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0x3956c25b,
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0x59f111f1,
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0x923f82a4,
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0xab1c5ed5,
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0xd807aa98,
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0x12835b01,
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0x243185be,
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0x550c7dc3,
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0x72be5d74,
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0x80deb1fe,
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0x9bdc06a7,
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0xc19bf174,
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0xe49b69c1,
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0xefbe4786,
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0x0fc19dc6,
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0x240ca1cc,
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0x2de92c6f,
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0x4a7484aa,
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0x5cb0a9dc,
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0x76f988da,
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0x983e5152,
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0xa831c66d,
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0xb00327c8,
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0xbf597fc7,
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0xc6e00bf3,
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0xd5a79147,
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0x06ca6351,
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0x14292967,
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0x27b70a85,
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0x2e1b2138,
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0x4d2c6dfc,
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0x53380d13,
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0x650a7354,
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0x766a0abb,
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0x81c2c92e,
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0x92722c85,
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0xa2bfe8a1,
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0xa81a664b,
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0xc24b8b70,
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0xc76c51a3,
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0xd192e819,
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0xd6990624,
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0xf40e3585,
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0x106aa070,
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0x19a4c116,
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0x1e376c08,
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0x2748774c,
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0x34b0bcb5,
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0x391c0cb3,
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0x4ed8aa4a,
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0x5b9cca4f,
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0x682e6ff3,
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0x748f82ee,
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0x78a5636f,
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0x84c87814,
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0x8cc70208,
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0x90befffa,
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0xa4506ceb,
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0xbef9a3f7,
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0xc67178f2,
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]);
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function hashBlocks(
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w: Int32Array,
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v: Int32Array,
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p: Uint8Array,
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pos: number,
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len: number,
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): number {
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let a: number,
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b: number,
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c: number,
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d: number,
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e: number,
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f: number,
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g: number,
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h: number,
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u: number,
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i: number,
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j: number,
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t1: number,
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t2: number;
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while (len >= 64) {
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a = v[0];
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b = v[1];
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c = v[2];
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d = v[3];
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e = v[4];
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f = v[5];
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g = v[6];
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h = v[7];
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for (i = 0; i < 16; i++) {
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j = pos + i * 4;
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w[i] =
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((p[j] & 0xff) << 24) |
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((p[j + 1] & 0xff) << 16) |
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((p[j + 2] & 0xff) << 8) |
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(p[j + 3] & 0xff);
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}
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for (i = 16; i < 64; i++) {
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u = w[i - 2];
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t1 =
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((u >>> 17) | (u << (32 - 17))) ^
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((u >>> 19) | (u << (32 - 19))) ^
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(u >>> 10);
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u = w[i - 15];
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t2 =
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((u >>> 7) | (u << (32 - 7))) ^
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((u >>> 18) | (u << (32 - 18))) ^
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(u >>> 3);
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w[i] = ((t1 + w[i - 7]) | 0) + ((t2 + w[i - 16]) | 0);
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}
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for (i = 0; i < 64; i++) {
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t1 =
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((((((e >>> 6) | (e << (32 - 6))) ^
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((e >>> 11) | (e << (32 - 11))) ^
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((e >>> 25) | (e << (32 - 25)))) +
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((e & f) ^ (~e & g))) |
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0) +
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((h + ((K[i] + w[i]) | 0)) | 0)) |
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0;
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t2 =
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((((a >>> 2) | (a << (32 - 2))) ^
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((a >>> 13) | (a << (32 - 13))) ^
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((a >>> 22) | (a << (32 - 22)))) +
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((a & b) ^ (a & c) ^ (b & c))) |
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0;
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h = g;
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g = f;
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f = e;
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e = (d + t1) | 0;
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d = c;
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c = b;
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b = a;
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a = (t1 + t2) | 0;
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}
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v[0] += a;
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v[1] += b;
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v[2] += c;
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v[3] += d;
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v[4] += e;
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v[5] += f;
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v[6] += g;
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v[7] += h;
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pos += 64;
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len -= 64;
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}
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return pos;
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}
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// Hash implements SHA256 hash algorithm.
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export class HashSha256 {
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digestLength: number = digestLength;
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blockSize: number = blockSize;
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// Note: Int32Array is used instead of Uint32Array for performance reasons.
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private state: Int32Array = new Int32Array(8); // hash state
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private temp: Int32Array = new Int32Array(64); // temporary state
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private buffer: Uint8Array = new Uint8Array(128); // buffer for data to hash
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private bufferLength: number = 0; // number of bytes in buffer
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private bytesHashed: number = 0; // number of total bytes hashed
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finished: boolean = false; // indicates whether the hash was finalized
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constructor() {
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this.reset();
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}
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// 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;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user