add anastasis skeleton, put crypto in taler-util

1 files changed, 186 insertions, 0 deletions

diff --git a/packages/taler-util/src/talerCrypto.test.ts b/packages/taler-util/src/talerCrypto.test.ts
new file mode 100644
index 000000000..ffd1d25cd
--- /dev/null
+++ b/packages/taler-util/src/talerCrypto.test.ts
@@ -0,0 +1,186 @@
+/*
+ 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/>
+ */
+
+/**
+ * Imports
+ */
+import test from "ava";
+import {
+  encodeCrock,
+  decodeCrock,
+  ecdheGetPublic,
+  eddsaGetPublic,
+  keyExchangeEddsaEcdhe,
+  keyExchangeEcdheEddsa,
+  stringToBytes,
+  bytesToString,
+} from "./talerCrypto.js";
+import { sha512, kdf } from "./kdf.js";
+import * as nacl from "./nacl-fast.js";
+
+test("encoding", (t) => {
+  const s = "Hello, World";
+  const encStr = encodeCrock(stringToBytes(s));
+  const outBuf = decodeCrock(encStr);
+  const sOut = bytesToString(outBuf);
+  t.deepEqual(s, sOut);
+});
+
+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 = "X4T4N0M8PVQXQEBW2BA7049KFSM7J437NSDFC6GDNM3N5J9367A0";
+  const pub1 = "M997P494MS6A95G1P0QYWW2VNPSHSX5Q6JBY5B9YMNYWP0B50X3G";
+  const priv2 = "14A0MMQ64DCV8HE0CS3WBC9DHFJAHXRGV7NEARFJPC5R5E1697E0";
+  const skm =
+    "NXRY2YCY7H9B6KM928ZD55WG964G59YR0CPX041DYXKBZZ85SAWNPQ8B30QRM5FMHYCXJAN0EAADJYWEF1X3PAC2AJN28626TR5A6AR";
+
+  const myPub1 = nacl.scalarMult_base(decodeCrock(priv1));
+  t.deepEqual(encodeCrock(myPub1), pub1);
+
+  const mySkm = nacl.hash(
+    nacl.scalarMult(decodeCrock(priv2), decodeCrock(pub1)),
+  );
+  t.deepEqual(encodeCrock(mySkm), skm);
+});
+
+test("taler-exchange-tvg eddsa key", (t) => {
+  const priv = "9TM70AKDTS57AWY9JK2J4TMBTMW6K62WHHGZWYDG0VM5ABPZKD40";
+  const pub = "8GSJZ649T2PXMKZC01Y4ANNBE7MF14QVK9SQEC4E46ZHKCVG8AS0";
+
+  const pair = nacl.sign_keyPair_fromSeed(decodeCrock(priv));
+  t.deepEqual(encodeCrock(pair.publicKey), pub);
+});
+
+test("taler-exchange-tvg kdf", (t) => {
+  const salt = "94KPT83PCNS7J83KC5P78Y8";
+  const ikm = "94KPT83MD1JJ0WV5CDS6AX10D5Q70XBM41NPAY90DNGQ8SBJD5GPR";
+  const ctx =
+    "94KPT83141HPYVKMCNW78833D1TPWTSC41GPRWVF41NPWVVQDRG62WS04XMPWSKF4WG6JVH0EHM6A82J8S1G";
+  const outLen = 64;
+  const out =
+    "GTMR4QT05Z9WF5HKVG0WK9RPXGHSMHJNW377G9GJXCA8B0FEKPF4D27RJMSJZYWSQNTBJ5EYVV7ZW18B48Z0JVJJ80RHB706Y96Q358";
+
+  const myOut = kdf(
+    outLen,
+    decodeCrock(ikm),
+    decodeCrock(salt),
+    decodeCrock(ctx),
+  );
+
+  t.deepEqual(encodeCrock(myOut), out);
+});
+
+test("taler-exchange-tvg eddsa_ecdh", (t) => {
+  const priv_ecdhe = "4AFZWMSGTVCHZPQ0R81NWXDCK4N58G7SDBBE5KXE080Y50370JJG";
+  const pub_ecdhe = "FXFN5GPAFTKVPWJDPVXQ87167S8T82T5ZV8CDYC0NH2AE14X0M30";
+  const priv_eddsa = "1KG54M8T3X8BSFSZXCR3SQBSR7Y9P53NX61M864S7TEVMJ2XVPF0";
+  const pub_eddsa = "7BXWKG6N224C57RTDV8XEAHR108HG78NMA995BE8QAT5GC1S7E80";
+  const key_material =
+    "PKZ42Z56SVK2796HG1QYBRJ6ZQM2T9QGA3JA4AAZ8G7CWK9FPX175Q9JE5P0ZAX3HWWPHAQV4DPCK10R9X3SAXHRV0WF06BHEC2ZTKR";
+
+  const myEcdhePub = ecdheGetPublic(decodeCrock(priv_ecdhe));
+  t.deepEqual(encodeCrock(myEcdhePub), pub_ecdhe);
+
+  const myEddsaPub = eddsaGetPublic(decodeCrock(priv_eddsa));
+  t.deepEqual(encodeCrock(myEddsaPub), pub_eddsa);
+
+  const myKm1 = keyExchangeEddsaEcdhe(
+    decodeCrock(priv_eddsa),
+    decodeCrock(pub_ecdhe),
+  );
+  t.deepEqual(encodeCrock(myKm1), key_material);
+
+  const myKm2 = keyExchangeEcdheEddsa(
+    decodeCrock(priv_ecdhe),
+    decodeCrock(pub_eddsa),
+  );
+  t.deepEqual(encodeCrock(myKm2), key_material);
+});
+
+test("incremental hashing #1", (t) => {
+  const n = 1024;
+  const d = nacl.randomBytes(n);
+
+  const h1 = nacl.hash(d);
+  const h2 = new nacl.HashState().update(d).finish();
+
+  const s = new nacl.HashState();
+  for (let i = 0; i < n; i++) {
+    const b = new Uint8Array(1);
+    b[0] = d[i];
+    s.update(b);
+  }
+
+  const h3 = s.finish();
+
+  t.deepEqual(encodeCrock(h1), encodeCrock(h2));
+  t.deepEqual(encodeCrock(h1), encodeCrock(h3));
+});
+
+test("incremental hashing #2", (t) => {
+  const n = 10;
+  const d = nacl.randomBytes(n);
+
+  const h1 = nacl.hash(d);
+  const h2 = new nacl.HashState().update(d).finish();
+  const s = new nacl.HashState();
+  for (let i = 0; i < n; i++) {
+    const b = new Uint8Array(1);
+    b[0] = d[i];
+    s.update(b);
+  }
+
+  const h3 = s.finish();
+
+  t.deepEqual(encodeCrock(h1), encodeCrock(h3));
+  t.deepEqual(encodeCrock(h1), encodeCrock(h2));
+});
+
+test("taler-exchange-tvg eddsa_ecdh #2", (t) => {
+  const priv_ecdhe = "W5FH9CFS3YPGSCV200GE8TH6MAACPKKGEG2A5JTFSD1HZ5RYT7Q0";
+  const pub_ecdhe = "FER9CRS2T8783TAANPZ134R704773XT0ZT1XPFXZJ9D4QX67ZN00";
+  const priv_eddsa = "MSZ1TBKC6YQ19ZFP3NTJVKWNVGFP35BBRW8FTAQJ9Z2B96VC9P4G";
+  const pub_eddsa = "Y7MKG85PBT8ZEGHF08JBVZXEV70TS0PY5Y2CMEN1WXEDN63KP1A0";
+  const key_material =
+    "G6RA58N61K7MT3WA13Q7VRTE1FQS6H43RX9HK8Z5TGAB61601GEGX51JRHHQMNKNM2R9AVC1STSGQDRHGKWVYP584YGBCTVMMJYQF30";
+
+  const myEcdhePub = ecdheGetPublic(decodeCrock(priv_ecdhe));
+  t.deepEqual(encodeCrock(myEcdhePub), pub_ecdhe);
+
+  const myEddsaPub = eddsaGetPublic(decodeCrock(priv_eddsa));
+  t.deepEqual(encodeCrock(myEddsaPub), pub_eddsa);
+
+  const myKm1 = keyExchangeEddsaEcdhe(
+    decodeCrock(priv_eddsa),
+    decodeCrock(pub_ecdhe),
+  );
+  t.deepEqual(encodeCrock(myKm1), key_material);
+
+  const myKm2 = keyExchangeEcdheEddsa(
+    decodeCrock(priv_ecdhe),
+    decodeCrock(pub_eddsa),
+  );
+  t.deepEqual(encodeCrock(myKm2), key_material);
+});