PackageDigitalSignatureManager.VerifySignatures(Boolean) 方法
定义
重要
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验证包内所有已签名部件上的签名。
public:
System::IO::Packaging::VerifyResult VerifySignatures(bool exitOnFailure);public System.IO.Packaging.VerifyResult VerifySignatures (bool exitOnFailure);member this.VerifySignatures : bool -> System.IO.Packaging.VerifyResultPublic Function VerifySignatures (exitOnFailure As Boolean) As VerifyResult参数
- exitOnFailure
- Boolean
若要在首次失败时退出，则为 true；若要继续检查所有签名，则为 false。
返回
如果成功验证所有签名，则为 Success（值为 0）；否则为标识错误的枚举。
示例
以下示例演示如何使用此方法验证包中的所有签名部件。
// ------------------------ ValidateSignatures ------------------------
/// <summary>
/// Validates all the digital signatures of a given package.</summary>
/// <param name="package">
/// The package for validating digital signatures.</param>
/// <returns>
/// true if all digital signatures are valid; otherwise false if the
/// package is unsigned or any of the signatures are invalid.</returns>
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 ------------------------
''' <summary>
''' Validates all the digital signatures of a given package.</summary>
''' <param name="package">
''' The package for validating digital signatures.</param>
''' <returns>
''' true if all digital signatures are valid; otherwise false if the
''' package is unsigned or any of the signatures are invalid.</returns>
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()
注解
此方法仅验证数字签名;它不会验证相关的 X.509 证书。 方法 VerifyCertificate 可用于验证 X.509 证书。
