In five years' time, once they have received TC-protected documents from perhaps a thousand different clients, they would have to get permission (in the form of signed digital certificates) from each of these clients in order to migrate their files to a new platform.
在5年内，一旦他们收到来自于数以千计的客户的可信计算保护的文档，他们将不得不从每个客户处获得许可（以签名的数字证书的形式），以将这些文件迁移到新的平台。