Delphi：如何使用文件时间戳进行数字签名？
我的许多客户使用软件进行数字签名。该软件称为 Dike，由意大利商会提供，它与 智能卡 硬件（例如 这个。
现在我想从我的应用程序中绕过执行此操作的软件来进行数字签名。
在Delphi中可以做到这一点吗？有人已经做到了吗？我也想添加时间戳。
赏金注意事项： 我不知道这在意大利之外有多重要，无论如何，在意大利，有一项法律要求某些文件按照特定规则存储。要实现这一点，必须对文件（pfd 文件）进行数字签名并添加时间戳。 基本上我问“是否有任何人已经在Delphi中实现了这一点并找到了成功的方法。你能分享你的结果吗？”。 基本上有一百万个 USB 智能卡读卡器，我不想开始在我的应用程序中支持数百万个驱动程序（我编写了一个部分是文档管理系统的应用程序），如果有像 TWAIN 这样的东西用于图像扫描仪那就太好了。
我也可以接受链接到特定硬件的限制，所以我可以说，如果你想要这个功能，你必须购买这个硬件，我不想支持所有现有的硬件或时间戳/数字签名网络服务。 所以我正在寻找的是 Delphi 1-0-1 的 pdf 文件的时间戳和数字签名。我希望我表达了自己的想法，如果没有，请询问。
Many customers of mine use a software for doing digital signatures. This software is called Dike and it is provided from the italian chamber of commerce and it interfaces to smart card hardware like this.
Now I would like from my application to do the digital signatures, bypassing the software that does it.
Is it possible to do this in Delphi, did anyone already did it? I would like to add timestamp too.
NOTE FOR BOUNTY:
I don't know how this is important outside of Italy, anyway in Italy there is a law that requires that certain documents are stored with particular rules. TO implmemetn this it is mandatory to digital sign and put a time stamp on the file (pfd files).
Basically I ask "is it there anyonw that already imlpemented this in Delphi and found a succesful way. Can you share your results?".
Basically there is a million of USB smartcard readers, I don't want to start supporting million of drivers in my application (I write an app that is in part a document management system), if there were seomthing like TWAIN is there for image scanner it would be great.
I could also accept the limitation to link to a specific hardware, so I can say if you want this feature you must buy this hardware, I don't want to support all the existing hardware or timestamp/digital signatures web services.
So what I am looking for is Time Stamp and Digital Signature for pdf files for Delphi 1-0-1. I hope I expressed my self if not please ask.
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我们的 SecureBlackbox 产品提供全面的 PKI 功能，包括使用 CMS 和 CAdES 格式和证书对数据进行签名和时间戳记位于 PKCS#11 兼容的智能卡上。如果您正在寻找 PDF 签名 和时间戳，那么 SecureBlackbox 也支持它们（通过 PAdES 标准）。
SecureBlackbox 适用于 Delphi 4 至 XE2，并支持 64 位 Windows。
我们的意大利客户可以满足您的需求。
Our SecureBlackbox product provides full scope of PKI functionality including signing and timestamping data using CMS and CAdES formats and certificates can be located on PKCS#11-compatible smartcards. If you are looking for PDF signing and timestamping, then SecureBlackbox supports them as well (via PAdES standard).
SecureBlackbox is available for Delphi 4 to XE2 and supports 64-bit Windows.
We have clients form Italy who do exactly what you need.
您还可以查看Gnostice PDFToolkit VCL，它允许您“编辑、保护、合并、拆分、查看、数字签名 PDF 文档”。
You mays also look at Gnostice PDFToolkit VCL wich allow you to "edit, secure, merge, split, view, digitally sign PDF documents".
使用签名工具：
with signtool: