我目前正在构建一个需要能够签署和认证PDF 文档的 Java 守护程序。现在我已经实现了这个代码，但是有一个“小”问题。
问题： 我使用的证书需要通过 Adobe Reader 自动验证。为此，您需要确保Adobe 的合作伙伴使用您的证书。VeriSign 为 Adobe 提供了一个名为True Credentials的产品，它非常适合我的需要。唯一的问题是它需要你有一个USB 令牌（注意：这可能不是确切的 USB 令牌，但它是同一家公司）才能使用它。好吧，这个 Java 守护程序将在多个位置的服务器上运行，因此为服务器配备 USB 密钥并不是一个真正的选择。
问题： 有谁知道我可以用来做这件事的产品/服务吗？就编码而言，这不是与“编程”相关的问题，但我正在编写一个应用程序，该应用程序具有“可能”另一个程序员已经拥有并已解决的特定要求。所以这就是我在这里问的原因。
谢谢你的时间。
After talking to a few of Adobes partners, apparently when they work with Adobe they're required by a policy to have the certificate stored on a hardware device.
I talked to GlobalSign and apparently one of their customers used the SDK of the company that made the USB keys to automate using the key on a server. So for anyone looking to do this and are not looking to pay 50k-75k for their hardware security module (HSM) and get their server software, this could be a possibility. The fact that I was told this by GlobalSign means that it's probably not against any terms of use but it's something you should look into if you're wanting to do this.