From ef51ba983f49b32a04bb8460f24f720f7952f306 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Iv=C3=A1n=20=C3=81valos?= <avalos@disroot.org>
Date: Fri, 30 Jun 2023 17:52:24 -0600
Subject: WIP: initial work for Anastasis in qtart

---
 packages/taler-util/package.json        |  5 +++--
 packages/taler-util/src/taler-crypto.ts | 35 +++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 2 deletions(-)

(limited to 'packages/taler-util')

diff --git a/packages/taler-util/package.json b/packages/taler-util/package.json
index 40fa94923..766163c48 100644
--- a/packages/taler-util/package.json
+++ b/packages/taler-util/package.json
@@ -69,11 +69,12 @@
     "big-integer": "^1.6.51",
     "fflate": "^0.7.4",
     "jed": "^1.1.1",
-    "tslib": "^2.5.3"
+    "tslib": "^2.5.3",
+    "hash-wasm": "^4.9.0"
   },
   "ava": {
     "files": [
       "lib/**/*test.js"
     ]
   }
-}
\ No newline at end of file
+}
diff --git a/packages/taler-util/src/taler-crypto.ts b/packages/taler-util/src/taler-crypto.ts
index e3f7d49a8..cabe2b7d0 100644
--- a/packages/taler-util/src/taler-crypto.ts
+++ b/packages/taler-util/src/taler-crypto.ts
@@ -24,6 +24,7 @@
 import * as nacl from "./nacl-fast.js";
 import { hmacSha256, hmacSha512 } from "./kdf.js";
 import bigint from "big-integer";
+import { argon2id } from "hash-wasm";
 import {
   CoinEnvelope,
   CoinPublicKeyString,
@@ -69,6 +70,13 @@ interface NativeTartLib {
   encodeCrock(buf: Uint8Array | ArrayBuffer): string;
   decodeCrock(str: string): Uint8Array;
   hash(buf: Uint8Array): Uint8Array;
+  hashArgon2id(
+    password: Uint8Array,
+    salt: Uint8Array,
+    iterations: number,
+    memorySize: number,
+    hashLength: number,
+  ): Uint8Array;
   eddsaGetPublic(buf: Uint8Array): Uint8Array;
   ecdheGetPublic(buf: Uint8Array): Uint8Array;
   eddsaSign(msg: Uint8Array, priv: Uint8Array): Uint8Array;
@@ -253,6 +261,33 @@ export function decodeCrock(encoded: string): Uint8Array {
   return out;
 }
 
+export async function hashArgon2id(
+  password: Uint8Array,
+  salt: Uint8Array,
+  iterations: number,
+  memorySize: number,
+  hashLength: number,
+): Promise<Uint8Array> {
+  if (tart) {
+    return tart.hashArgon2id(
+      password,
+      salt,
+      iterations,
+      memorySize,
+      hashLength,
+    );
+  }
+  return await argon2id({
+    password: password,
+    salt: salt,
+    iterations: iterations,
+    memorySize: memorySize,
+    hashLength: hashLength,
+    parallelism: 1,
+    outputType: "binary",
+  });
+}
+
 export function eddsaGetPublic(eddsaPriv: Uint8Array): Uint8Array {
   if (tart) {
     return tart.eddsaGetPublic(eddsaPriv);
-- 
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