Via

web/apps/accounts/src/services/passkey.ts

@@ -1,9 +1,6 @@
 import { TwoFactorAuthorizationResponse } from "ente-accounts/services/user";
 import { clientPackageName } from "ente-base/app";
-import {
-    fromB64URLSafeNoPadding,
-    toB64URLSafeNoPadding,
-} from "ente-base/crypto/libsodium";
+import { toB64URLSafeNoPadding, fromB64URLSafeNoPadding } from "ente-base/crypto";
 import { isDevBuild } from "ente-base/env";
 import { ensureOk, HTTPError, publicRequestHeaders } from "ente-base/http";
 import { apiURL } from "ente-base/origins";

web/packages/base/crypto/ente-impl.ts

@@ -6,8 +6,10 @@ import * as libsodium from "./libsodium";
 // See: [Note: Using libsodium in worker thread]
 
 export const _toB64 = libsodium.toB64;
-export const _toB64URLSafe = libsodium.toB64URLSafe;
 export const _fromB64 = libsodium.fromB64;
+export const _toB64URLSafe = libsodium.toB64URLSafe;
+export const _toB64URLSafeNoPadding = libsodium.toB64URLSafeNoPadding;
+export const _fromB64URLSafeNoPadding = libsodium.fromB64URLSafeNoPadding;
 export const _toHex = libsodium.toHex;
 export const _fromHex = libsodium.fromHex;
 export const _generateKey = libsodium.generateKey;

web/packages/base/crypto/index.ts

@@ -150,6 +150,25 @@ export const toB64URLSafe = (bytes: Uint8Array): Promise<string> =>
         ? ei._toB64URLSafe(bytes)
         : sharedWorker().then((w) => w.toB64URLSafe(bytes));
 
+/**
+ * URL safe variant of {@link toB64} that does not add any padding ("="
+ * characters).
+ */
+export const toB64URLSafeNoPadding = (bytes: Uint8Array): Promise<string> =>
+    inWorker()
+        ? ei._toB64URLSafeNoPadding(bytes)
+        : sharedWorker().then((w) => w.toB64URLSafeNoPadding(bytes));
+
+/**
+ * URL safe unpadded variant of {@link fromB64}.
+ */
+export const fromB64URLSafeNoPadding = (
+    b64String: string,
+): Promise<Uint8Array> =>
+    inWorker()
+        ? ei._fromB64URLSafeNoPadding(b64String)
+        : sharedWorker().then((w) => w.fromB64URLSafeNoPadding(b64String));
+
 /**
  * Convert a base64 string to the hex representation of the underlying bytes.
  */

web/packages/base/crypto/worker.ts

@@ -13,8 +13,10 @@ import * as ei from "./ente-impl";
  */
 export class CryptoWorker {
     toB64 = ei._toB64;
-    toB64URLSafe = ei._toB64URLSafe;
     fromB64 = ei._fromB64;
+    toB64URLSafe = ei._toB64URLSafe;
+    toB64URLSafeNoPadding = ei._toB64URLSafeNoPadding;
+    fromB64URLSafeNoPadding = ei._fromB64URLSafeNoPadding;
     toHex = ei._toHex;
     fromHex = ei._fromHex;
     generateKey = ei._generateKey;