Set<String> nonceSet = new HashSet<>();

        // When
        for (int i = 0; i < count; i++) {
            byte[] nonce = encryptionContext.generateNonce();
            String nonceHex = bytesToHex(nonce);
            boolean added = nonceSet.add(nonceHex);
            assertTrue(added, "Nonce collision detected at iteration " + i);
        }

        // Then