IDigestCalculator Interface

Allows you to calculate a digest from a stream.

Namespace: DevExpress.Office.DigitalSignatures

Assembly: DevExpress.Pdf.v22.1.Core.dll

Declaration

C#

public interface IDigestCalculator

VB.NET

Public Interface IDigestCalculator

Related API Members

The following members return IDigestCalculator objects:

• ExternalSignerInfo.DigestCalculator

Remarks

The IDigestCalculator interface allows you to implement a custom class to compute a digest value. Refer to the How to: Use a Custom Signer Class to Apply Signatures to the PDF Document repository for a code example.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the IDigestCalculator interface.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

pdf-document-processor-custom-signer/CS/CustomSigner/BouncyCastleSigner.cs#L19

// Declare a custom class to calculate a digest value:
public class BouncyCastleDigestCalculator : IDigestCalculator
{

VB.NET

pdf-document-processor-custom-signer/VB/CustomSigner/BouncyCastleSigner.vb#L19

Public Class BouncyCastleDigestCalculator
    Implements IDigestCalculator