1 files changed, 8 insertions, 0 deletions
diff --git a/packages/merchant-backoffice-ui/src/utils/crypto.ts b/packages/merchant-backoffice-ui/src/utils/crypto.ts
index 7bab8abf1..27e6ade02 100644
--- a/packages/merchant-backoffice-ui/src/utils/crypto.ts
+++ b/packages/merchant-backoffice-ui/src/utils/crypto.ts
@@ -46,6 +46,14 @@ function encodeBase32(data: ArrayBuffer) {
   return sb;
 }
 
+export function isBase32RFC3548Charset(s: string): boolean {
+  for (let idx = 0; idx < s.length; idx++) {
+    const c = s.charAt(idx);
+    if (encTable.indexOf(c) === -1) return false;
+  }
+  return true;
+}
+
 export function randomBase32Key(): string {
   var buf = new Uint8Array(20);
   window.crypto.getRandomValues(buf);