2 files changed, 10 insertions, 4 deletions
diff --git a/packages/merchant-backoffice-ui/src/utils/amount.ts b/packages/merchant-backoffice-ui/src/utils/amount.ts
index 93d6a3a4a..475489d3e 100644
--- a/packages/merchant-backoffice-ui/src/utils/amount.ts
+++ b/packages/merchant-backoffice-ui/src/utils/amount.ts
@@ -59,14 +59,12 @@ export function mergeRefunds(
   return prev;
 }
 
-export const rate = (one: string, two: string): number => {
-  const a = Amounts.parseOrThrow(one);
-  const b = Amounts.parseOrThrow(two);
+export function rate(a: AmountJson, b: AmountJson): number {
   const af = toFloat(a);
   const bf = toFloat(b);
   if (bf === 0) return 0;
   return af / bf;
-};
+}
 
 function toFloat(amount: AmountJson): number {
   return amount.value + amount.fraction / amountFractionalBase;
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);