// Set signed flag
            SMBUtil.writeInt4(ServerMessageBlock2.SMB2_FLAGS_SIGNED, data, 16);

            // Create valid signature using HmacSHA256
            Mac mac = Mac.getInstance("HmacSHA256");
            mac.init(new SecretKeySpec(sessionKey, "HmacSHA256"));

            // Zero signature field for calculation
            for (int i = 0; i < SIGNATURE_LENGTH; i++) {

            throws GeneralSecurityException {
        switch (dialect) {
        case Smb2Constants.SMB2_DIALECT_0202:
        case Smb2Constants.SMB2_DIALECT_0210:
            this.algorithmName = "HmacSHA256";
            this.provider = null;
            this.signingKey = sessionKey.clone();
            break;
        case Smb2Constants.SMB2_DIALECT_0300:
        case Smb2Constants.SMB2_DIALECT_0302: