1 files changed, 15 insertions, 19 deletions
diff --git a/packages/anastasis-core/src/crypto.ts b/packages/anastasis-core/src/crypto.ts
index 5e45f995f..3a9483aa1 100644
--- a/packages/anastasis-core/src/crypto.ts
+++ b/packages/anastasis-core/src/crypto.ts
@@ -26,8 +26,8 @@ import {
   secretbox_open,
   hash,
   bytesToString,
+  hashArgon2id,
 } from "@gnu-taler/taler-util";
-import { argon2id } from "hash-wasm";
 
 export type Flavor<T, FlavorT extends string> = T & {
   _flavor?: `anastasis.${FlavorT}`;
@@ -71,15 +71,13 @@ export async function userIdentifierDerive(
 ): Promise<UserIdentifier> {
   const canonIdData = canonicalJson(idData);
   const hashInput = stringToBytes(canonIdData);
-  const result = await argon2id({
-    hashLength: 64,
-    iterations: 3,
-    memorySize: 1024 /* kibibytes */,
-    parallelism: 1,
-    password: hashInput,
-    salt: decodeCrock(serverSalt),
-    outputType: "binary",
-  });
+  const result = await hashArgon2id(
+    hashInput,               // password
+    decodeCrock(serverSalt), // salt
+    3,                       // iterations
+    1024,                    // memoryLimit (kibibytes)
+    64,                      // hashLength
+  );
   return encodeCrock(result);
 }
 
@@ -343,15 +341,13 @@ export async function secureAnswerHash(
   truthUuid: TruthUuid,
   questionSalt: TruthSalt,
 ): Promise<SecureAnswerHash> {
-  const powResult = await argon2id({
-    hashLength: 64,
-    iterations: 3,
-    memorySize: 1024 /* kibibytes */,
-    parallelism: 1,
-    password: stringToBytes(answer),
-    salt: decodeCrock(questionSalt),
-    outputType: "binary",
-  });
+  const powResult = await hashArgon2id(
+    stringToBytes(answer),     // password
+    decodeCrock(questionSalt), // salt
+    3,                         // iterations
+    1024,                      // memorySize (kibibytes)
+    64,                        // hashLength
+  );
   const kdfResult = kdfKw({
     outputLength: 64,
     salt: decodeCrock(truthUuid),