throw new CIFSUnsupportedCryptoException(e);
        }
    }

    /**
     * Get a SHA-512 message digest instance.
     * @return SHA512 digest instance
     */
    public static MessageDigest getSHA512() {
        try {
            return MessageDigest.getInstance("SHA-512");
        } catch (final NoSuchAlgorithmException e) {
            throw new CIFSUnsupportedCryptoException(e);
        }
    }

    /**

            throw new SmbUnsupportedOperationException();
        }

        MessageDigest dgst = switch (resp.getSelectedPreauthHash()) {
        case 1 -> Crypto.getSHA512();
        default -> throw new SmbUnsupportedOperationException();
        };
        if (oldHash != null) {
            dgst.update(oldHash);
        }
        dgst.update(input, off, len);