X509Certificate2.Thumbprint 属性
定义
获取证书的指纹。Gets the thumbprint of a certificate.
public:
property System::String ^ Thumbprint { System::String ^ get(); };
public string Thumbprint { get; }
member this.Thumbprint : string
Public ReadOnly Property Thumbprint As String
属性值
证书的指纹。The thumbprint of the certificate.
示例
下面的代码示例创建一个命令行可执行文件,该命令行可执行文件将证书文件作为参数,并将各种证书属性打印到控制台。The following code example creates a command-line executable that takes a certificate file as an argument and prints various certificate properties to the console.
#using <System.dll>
using namespace System;
using namespace System::Security::Cryptography;
using namespace System::Security::Permissions;
using namespace System::IO;
using namespace System::Security::Cryptography::X509Certificates;
//Reads a file.
array<Byte>^ ReadFile( String^ fileName )
{
FileStream^ f = gcnew FileStream( fileName,FileMode::Open,FileAccess::Read );
int size = (int)f->Length;
array<Byte>^data = gcnew array<Byte>(size);
size = f->Read( data, 0, size );
f->Close();
return data;
}
[SecurityPermissionAttribute(SecurityAction::LinkDemand, Unrestricted = true)]
int main()
{
array<String^>^args = Environment::GetCommandLineArgs();
//Test for correct number of arguments.
if ( args->Length < 2 )
{
Console::WriteLine( "Usage: CertInfo <filename>" );
return -1;
}
try
{
System::Security::Cryptography::X509Certificates::X509Certificate2 ^ x509 =
gcnew System::Security::Cryptography::X509Certificates::X509Certificate2;
//Create X509Certificate2 object from .cer file.
array<Byte>^rawData = ReadFile( args[ 1 ] );
x509->Import(rawData);
//Print to console information contained in the certificate.
Console::WriteLine( "{0}Subject: {1}{0}", Environment::NewLine, x509->Subject );
Console::WriteLine( "{0}Issuer: {1}{0}", Environment::NewLine, x509->Issuer );
Console::WriteLine( "{0}Version: {1}{0}", Environment::NewLine, x509->Version );
Console::WriteLine( "{0}Valid Date: {1}{0}", Environment::NewLine, x509->NotBefore );
Console::WriteLine( "{0}Expiry Date: {1}{0}", Environment::NewLine, x509->NotAfter );
Console::WriteLine( "{0}Thumbprint: {1}{0}", Environment::NewLine, x509->Thumbprint );
Console::WriteLine( "{0}Serial Number: {1}{0}", Environment::NewLine, x509->SerialNumber );
Console::WriteLine( "{0}Friendly Name: {1}{0}", Environment::NewLine, x509->PublicKey->Oid->FriendlyName );
Console::WriteLine( "{0}Public Key Format: {1}{0}", Environment::NewLine, x509->PublicKey->EncodedKeyValue->Format(true) );
Console::WriteLine( "{0}Raw Data Length: {1}{0}", Environment::NewLine, x509->RawData->Length );
Console::WriteLine( "{0}Certificate to string: {1}{0}", Environment::NewLine, x509->ToString( true ) );
Console::WriteLine( "{0}Certificate to XML String: {1}{0}", Environment::NewLine, x509->PublicKey->Key->ToXmlString( false ) );
//Add the certificate to a X509Store.
X509Store ^ store = gcnew X509Store;
store->Open( OpenFlags::MaxAllowed );
store->Add( x509 );
store->Close();
}
catch ( DirectoryNotFoundException^ )
{
Console::WriteLine( "Error: The directory specified could not be found." );
}
catch ( IOException^ )
{
Console::WriteLine( "Error: A file in the directory could not be accessed." );
}
catch ( NullReferenceException^ )
{
Console::WriteLine( "File must be a .cer file. Program does not have access to that type of file." );
}
}
using System;
using System.Security.Cryptography;
using System.Security.Permissions;
using System.IO;
using System.Security.Cryptography.X509Certificates;
class CertInfo
{
//Reads a file.
internal static byte[] ReadFile (string fileName)
{
FileStream f = new FileStream(fileName, FileMode.Open, FileAccess.Read);
int size = (int)f.Length;
byte[] data = new byte[size];
size = f.Read(data, 0, size);
f.Close();
return data;
}
//Main method begins here.
static void Main(string[] args)
{
//Test for correct number of arguments.
if (args.Length < 1)
{
Console.WriteLine("Usage: CertInfo <filename>");
return;
}
try
{
X509Certificate2 x509 = new X509Certificate2();
//Create X509Certificate2 object from .cer file.
byte[] rawData = ReadFile(args[0]);
x509.Import(rawData);
//Print to console information contained in the certificate.
Console.WriteLine("{0}Subject: {1}{0}", Environment.NewLine, x509.Subject);
Console.WriteLine("{0}Issuer: {1}{0}", Environment.NewLine, x509.Issuer);
Console.WriteLine("{0}Version: {1}{0}", Environment.NewLine, x509.Version);
Console.WriteLine("{0}Valid Date: {1}{0}", Environment.NewLine, x509.NotBefore);
Console.WriteLine("{0}Expiry Date: {1}{0}", Environment.NewLine, x509.NotAfter);
Console.WriteLine("{0}Thumbprint: {1}{0}", Environment.NewLine, x509.Thumbprint);
Console.WriteLine("{0}Serial Number: {1}{0}", Environment.NewLine, x509.SerialNumber);
Console.WriteLine("{0}Friendly Name: {1}{0}", Environment.NewLine, x509.PublicKey.Oid.FriendlyName);
Console.WriteLine("{0}Public Key Format: {1}{0}", Environment.NewLine, x509.PublicKey.EncodedKeyValue.Format(true));
Console.WriteLine("{0}Raw Data Length: {1}{0}", Environment.NewLine, x509.RawData.Length);
Console.WriteLine("{0}Certificate to string: {1}{0}", Environment.NewLine, x509.ToString(true));
Console.WriteLine("{0}Certificate to XML String: {1}{0}", Environment.NewLine, x509.PublicKey.Key.ToXmlString(false));
//Add the certificate to a X509Store.
X509Store store = new X509Store();
store.Open(OpenFlags.MaxAllowed);
store.Add(x509);
store.Close();
}
catch (DirectoryNotFoundException)
{
Console.WriteLine("Error: The directory specified could not be found.");
}
catch (IOException)
{
Console.WriteLine("Error: A file in the directory could not be accessed.");
}
catch (NullReferenceException)
{
Console.WriteLine("File must be a .cer file. Program does not have access to that type of file.");
}
}
}
Imports System.Security.Cryptography
Imports System.Security.Permissions
Imports System.IO
Imports System.Security.Cryptography.X509Certificates
Class CertInfo
'Reads a file.
Friend Shared Function ReadFile(ByVal fileName As String) As Byte()
Dim f As New FileStream(fileName, FileMode.Open, FileAccess.Read)
Dim size As Integer = Fix(f.Length)
Dim data(size - 1) As Byte
size = f.Read(data, 0, size)
f.Close()
Return data
End Function
<SecurityPermission(SecurityAction.LinkDemand, Unrestricted:=True)> _
Shared Sub Main(ByVal args() As String)
'Test for correct number of arguments.
If args.Length < 1 Then
Console.WriteLine("Usage: CertInfo <filename>")
Return
End If
Try
Dim x509 As New X509Certificate2()
'Create X509Certificate2 object from .cer file.
Dim rawData As Byte() = ReadFile(args(0))
x509.Import(rawData)
'Print to console information contained in the certificate.
Console.WriteLine("{0}Subject: {1}{0}", Environment.NewLine, x509.Subject)
Console.WriteLine("{0}Issuer: {1}{0}", Environment.NewLine, x509.Issuer)
Console.WriteLine("{0}Version: {1}{0}", Environment.NewLine, x509.Version)
Console.WriteLine("{0}Valid Date: {1}{0}", Environment.NewLine, x509.NotBefore)
Console.WriteLine("{0}Expiry Date: {1}{0}", Environment.NewLine, x509.NotAfter)
Console.WriteLine("{0}Thumbprint: {1}{0}", Environment.NewLine, x509.Thumbprint)
Console.WriteLine("{0}Serial Number: {1}{0}", Environment.NewLine, x509.SerialNumber)
Console.WriteLine("{0}Friendly Name: {1}{0}", Environment.NewLine, x509.PublicKey.Oid.FriendlyName)
Console.WriteLine("{0}Public Key Format: {1}{0}", Environment.NewLine, x509.PublicKey.EncodedKeyValue.Format(True))
Console.WriteLine("{0}Raw Data Length: {1}{0}", Environment.NewLine, x509.RawData.Length)
Console.WriteLine("{0}Certificate to string: {1}{0}", Environment.NewLine, x509.ToString(True))
Console.WriteLine("{0}Certificate to XML String: {1}{0}", Environment.NewLine, x509.PublicKey.Key.ToXmlString(False))
'Add the certificate to a X509Store.
Dim store As New X509Store()
store.Open(OpenFlags.MaxAllowed)
store.Add(x509)
store.Close()
Catch dnfExcept As DirectoryNotFoundException
Console.WriteLine("Error: The directory specified could not be found.")
Catch ioExpcept As IOException
Console.WriteLine("Error: A file in the directory could not be accessed.")
Catch nrExcept As NullReferenceException
Console.WriteLine("File must be a .cer file. Program does not have access to that type of file.")
End Try
End Sub
End Class
注解
指纹是使用 SHA1 算法动态生成的,并且在证书中实际上不存在。The thumbprint is dynamically generated using the SHA1 algorithm and does not physically exist in the certificate. 由于指纹是证书的唯一值,因此通常用于在证书存储区中查找特定证书。Since the thumbprint is a unique value for the certificate, it is commonly used to find a particular certificate in a certificate store.