Language

VerifyResult Enum

Definition

Namespace:
System.IO.Packaging
Assembly:
WindowsBase.dll

Specifies the result of a certificate or signature verification.

public enum class VerifyResult
public enum VerifyResult
type VerifyResult = 
Public Enum VerifyResult
Inheritance
Object
ValueType
Enum
VerifyResult

Fields

Name Value Description
Success 0

The verification was successful.
InvalidSignature 1

The signature is not valid.
CertificateRequired 2

The X.509 certificate is not available to verify the signature.
InvalidCertificate 3

The X.509 certificate is not valid.
ReferenceNotFound 4

A reference relationship to the signature was not found.
NotSigned 5

The specified package or part has no signature.

Examples

The following example shows how to use the VerifyResult enumeration.

// ------------------------ ValidateSignatures ------------------------
/// 
///   Validates all the digital signatures of a given package.
/// 
///   The package for validating digital signatures.
/// 
///   true if all digital signatures are valid; otherwise false if the
///   package is unsigned or any of the signatures are invalid.
private static bool ValidateSignatures(Package package)
{
    if (package == null)
        throw new ArgumentNullException("ValidateSignatures(package)");

    // Create a PackageDigitalSignatureManager for the given Package.
    PackageDigitalSignatureManager dsm =
        new PackageDigitalSignatureManager(package);

    // Check to see if the package contains any signatures.
    if (!dsm.IsSigned)
        return false;   // The package is not signed.

    // Verify that all signatures are valid.
    VerifyResult result = dsm.VerifySignatures(false);
    if (result != VerifyResult.Success)
        return false;   // One or more digital signatures are invalid.

    // else if (result == VerifyResult.Success)
    return true;        // All signatures are valid.
}// end:ValidateSignatures()

' ------------------------ ValidateSignatures ------------------------
''' 
''' Validates all the digital signatures of a given package.
''' 
''' The package for validating digital signatures.
''' 
''' true if all digital signatures are valid; otherwise false if the
''' package is unsigned or any of the signatures are invalid.
Private Shared Function ValidateSignatures(ByVal package As Package) As Boolean
    If package Is Nothing Then
        Throw New ArgumentNullException("ValidateSignatures(package)")
    End If

    ' Create a PackageDigitalSignatureManager for the given Package.
    Dim dsm As New PackageDigitalSignatureManager(package)

    ' Check to see if the package contains any signatures.
    If Not dsm.IsSigned Then
        Return False
    End If
    ' The package is not signed.
    ' Verify that all signatures are valid.
    Dim result As VerifyResult = dsm.VerifySignatures(False)
    If result <> VerifyResult.Success Then
        Return False
    End If
    ' One or more digital signatures are invalid.
    ' else if (result == VerifyResult.Success)
    ' All signatures are valid.
    Return True
End Function
' end:ValidateSignatures()

Applies to

See also