如何使用 C# 使用 HSM 对 PDF 进行数字签名

using IronPdf;
using IronPdf.Signing;
using IronSoftware.Pdfium.Signing;
using System.Drawing;

ChromePdfRenderer renderer = new ChromePdfRenderer();
PdfDocument pdf = renderer.RenderHtmlAsPdf("<h1>Testing</h1>");

// Define Paths and Credentials
string softhsmLibraryPath = @"D:\SoftHSM2\lib\softhsm2-x64.dll";
// These MUST match what you created
string hsmTokenLabel = "MyTestToken";
string hsmPin = "123456";
string hsmKeyLabel = "my-key"; // The label for the key *inside* the token

// Create the HsmSigner object.
UsbPkcs11HsmSigner hsmSigner = new UsbPkcs11HsmSigner(
    softhsmLibraryPath,
    hsmPin,
    hsmTokenLabel,
    hsmKeyLabel
);

// Create the Signature Image
string signatureImagePath = "IronSoftware.png";
PdfSignatureImage sigImage = new PdfSignatureImage(signatureImagePath, 0, new Rectangle(50, 50, 150, 150));

// Sign PDF with HSM
pdf.SignAndSave("signedWithHSM.pdf", hsmSigner);

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