0

有谁知道我如何才能找出用户证书何时到期?我知道我可以使用以下代码获取给定用户的所有证书:

Set objUserTemplate = _
    GetObject("LDAP://cn=userTemplate,OU=Management,dc=NA,dc=fabrikam,dc=com")
arrUserCertificates = objUserTemplate.GetEx("userCertificate")

但是,我该如何轮询给定证书的到期日期呢?我确实在这里看到了这个 java 代码:http ://forums.novell.com/novell-developer-forums/dev-ldap/364977-q-retrieving-users-public-key-over-ldap.html ,

X509Certificate cert = ( X509Certificate )it.next();
java.util.Date expires = cert.getNotAfter();
GregorianCalendar calNow = new GregorianCalendar();
GregorianCalendar calExp = new GregorianCalendar();
calExp.setTime( expires );
//issuerDN = cert.getIssuerDN().getName();
int daysTilExp = com.willeke.utility.DateUtils.daysPast( calExp );
long diffDays = com.willeke.utility.DateUtils.diffDayPeriods( calNow,
calExp );
if( diffDays <= 0 )
{
String mex = " Will expire in: " + diffDays + " days!";

但我不确定我是否可以getNotAfter在 VB 中使用该方法,或者我将如何去做。有没有人有任何想法?如果可能的话,我希望帮助在 VBScript/VB.Net/VBA 等中进行此查询。

我确实在这里找到了这个 VBScript 代码,它似乎正在做我想要完成的事情,但看起来相当复杂,而 java 代码看起来要简单得多。有没有一种更简单的方法可以在某种 VB 中进行此查询?

从克鲁托网站:

On Error Resume Next

Const E_ADS_PROPERTY_NOT_FOUND  = &h8000500D
Const ForWriting = 2
Const WshRunning = 0

Set objUser = GetObject _
    ("GC://cn=MyerKen,ou=Management,dc=NA,dc=fabrikam,dc=com")
objUser.GetInfoEx Array("userCertificate"), 0
arrUserCertificates = objUser.GetEx("userCertificate")

If Err.Number = E_ADS_PROPERTY_NOT_FOUND Then
    WScript.Echo "No assigned certificates"
    WScript.Quit
Else
    Set objShell = CreateObject("WScript.Shell")
    Set objFSO = CreateObject("Scripting.FileSystemObject")
    strPath = "." 
    intFileCounter = 0

    For Each arrUserCertificate in arrUserCertificates
        strFileName = "file" & intFileCounter
        strFullName = objFSO.BuildPath(strPath, strFileName)
        Set objFile = objFSO.OpenTextFile(strFullName, ForWriting, True)

        For i = 1 To LenB(arrUserCertificate)
            ReDim Preserve arrUserCertificatesChar(i - 1)
            arrUserCertificatesChar(i-1) = _
                Hex(AscB(MidB(arrUserCertificate, i, 3)))
        Next

        intCounter=0
        For Each HexVal in arrUserCertificatesChar
            intCounter=intCounter + 1
            If Len(HexVal) = 1 Then 
                objFile.Write(0 & HexVal & " ")
            Else
                objFile.Write(HexVal & " ")
            End If
        Next
        objFile.Close
        Set objFile = Nothing

        Set objExecCmd1 = objShell.Exec _
            ("certutil -decodeHex " & strFileName & " " & strFileName & ".cer")
        Do While objExecCmd1.Status = WshRunning
            WScript.Sleep 100
        Loop
        Set objExecCmd1 = Nothing

        Set objExecCmd2 = objShell.Exec("certutil " & strFileName & ".cer")
        Set objStdOut = objExecCmd2.StdOut
        Set objExecCmd2 = Nothing

        WScript.Echo VbCrLf & "Certificate " & intFileCounter + 1
        While Not objStdOut.AtEndOfStream
            strLine = objStdOut.ReadLine
            If InStr(strLine, "Issuer:") Then
                WScript.Echo Trim(strLine)
                WScript.Echo vbTab & Trim(objStdOut.ReadLine)
            End If
            If InStr(strLine, "Subject:") Then
                Wscript.Echo Trim(strLine)
                WScript.Echo vbTab & Trim(objStdOut.ReadLine)
            End If
            If InStr(strLine, "NotAfter:") Then
                strLine = Trim(strLine)
                WScript.Echo "Expires:"
                Wscript.Echo vbTab & Mid(strLine, 11)
            End If
        Wend

        objFSO.DeleteFile(strFullName)
        objFSO.DeleteFile(strPath & "\" & strFileName & ".cer") 

        intFileCounter = intFileCounter + 1
    Next
End If

更新我确实看到我可以将证书导入到 CAPICOM对象中以返回ValidToDate属性,但是根据这里的帖子,显然它存储在 AD 中的格式是错误的格式:http://www.powershellcommunity。 org/Forums/tabid/54/aff/4/aft/1639/afv/topic/Default.aspx

有谁知道 CAPICOM 导入功能需要什么格式?

4

1 回答 1

1

Microsoft 有一个名为 CAPICOM 的 ActiveX 控件,它允许您以编程方式访问证书的各种属性。MSDN CAPICOM 文章详细介绍了这些函数。Platform SDK(链接自 Where to get it 链接)包括示例、文档和可再发行控件。示例包括 VBScript 示例。我在这里找到了平台 SDK 的下载。

简而言之,一旦您检索到证书,您就在寻找ValidFromDateValidToDate属性。

于 2009-05-20T19:16:32.497 回答