taler-util: import hash-wasm only when building for Node

packages/taler-util/package.json

@@ -49,6 +49,10 @@
       "node": "./lib/http-impl.node.js",
       "qtart": "./lib/http-impl.qtart.js",
       "default": "./lib/http-impl.missing.js"
+    },
+    "#argon2-impl": {
+      "node": "./lib/argon2-impl.node.js",
+      "default": "/lib/argon2-impl.missing.js"
     }
   },
   "scripts": {

packages/taler-util/src/argon2-impl.missing.ts

@@ -0,0 +1,10 @@
+
+export async function HashArgon2idImpl(
+  password: Uint8Array,
+  salt: Uint8Array,
+  iterations: number,
+  memorySize: number,
+  hashLength: number,
+): Promise<Uint8Array> {
+  throw new Error("Method not implemented.");
+}

packages/taler-util/src/argon2-impl.node.ts

@@ -0,0 +1,19 @@
+import { argon2id } from "hash-wasm";
+
+export async function HashArgon2idImpl(
+  password: Uint8Array,
+  salt: Uint8Array,
+  iterations: number,
+  memorySize: number,
+  hashLength: number,
+): Promise<Uint8Array> {
+  return await argon2id({
+    password: password,
+    salt: salt,
+    iterations: iterations,
+    memorySize: memorySize,
+    hashLength: hashLength,
+    parallelism: 1,
+    outputType: "binary",
+  });
+}

packages/taler-util/src/argon2.ts

@@ -0,0 +1,18 @@
+import * as impl from "#argon2-impl";
+
+export async function hashArgon2id(
+  password: Uint8Array,
+  salt: Uint8Array,
+  iterations: number,
+  memorySize: number,
+  hashLength: number,
+): Promise<Uint8Array> {
+  return await impl.HashArgon2idImpl(
+    password,
+    salt,
+    iterations,
+    memorySize,
+    hashLength,
+  );
+}
+

packages/taler-util/src/taler-crypto.ts

@@ -24,7 +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 * as argon2 from "./argon2.js";
 import {
   CoinEnvelope,
   CoinPublicKeyString,
@@ -277,15 +277,13 @@ export async function hashArgon2id(
       hashLength,
     );
   }
-  return await argon2id({
-    password: password,
-    salt: salt,
-    iterations: iterations,
-    memorySize: memorySize,
-    hashLength: hashLength,
-    parallelism: 1,
-    outputType: "binary",
-  });
+  return await argon2.hashArgon2id(
+    password,
+    salt,
+    iterations,
+    memorySize,
+    hashLength,
+  );
 }
 
 export function eddsaGetPublic(eddsaPriv: Uint8Array): Uint8Array {