Class ExcelDigitalSignature

Digital Signature class to sign a workbook

Inheritance

System.Object

XmlHelper

ExcelDigitalSignature

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: OfficeOpenXml.DigitalSignatures

Assembly: EPPlus.dll

Syntax

public class ExcelDigitalSignature : XmlHelper

Fields

CommitmentTyping

Commitment Type.

Declaration

public CommitmentType CommitmentTyping

Field Value

Type	Description
CommitmentType

Details

Details about the signer of a DigitalSignature, such as role, title, address etc.

Declaration

public AdditionalSignatureInfo Details

Field Value

Type	Description
AdditionalSignatureInfo

Properties

Certificate

The Certificate used to sign this digital signature

Declaration

public X509Certificate2 Certificate { get; set; }

Property Value

Type	Description
System.Security.Cryptography.X509Certificates.X509Certificate2

IsValid

Whether the Signature was valid when the file was read/saved Is dirty and outdated until after package is saved if any changes have been made to package files.

Declaration

public bool IsValid { get; }

Property Value

Type	Description
System.Boolean

PurposeForSigning

Reason for signing the document-

Declaration

public string PurposeForSigning { get; set; }

Property Value

Type	Description
System.String

Methods

SetDigestMethod(DigitalSignatureHashAlgorithm)

Set the digest method/Hash Algorithm for the package Note: All Digital Signatures in the package will use the latest algorithm.

Declaration

public void SetDigestMethod(DigitalSignatureHashAlgorithm algorithm)

Parameters

Type	Name	Description
DigitalSignatureHashAlgorithm	algorithm

Exceptions

Type	Condition
System.InvalidOperationException