34

我想将密码从 System.Security.SecureString 解码为可读密码。

$password = convertto-securestring "TestPassword" -asplaintext -force
$credentials = New-Object System.Net.NetworkCredential("TestUsername", $password, "TestDomain")

此代码部分工作正常，我可以使用 $credentials 对象。但稍后在我的代码中，我需要可读格式的密码。因为方法需要可读字符串中的密码。所以我必须把密码解码回来。

如何从 $credentials 对象中解码密码？

更新

不工作：

$password = convertto-securestring "TestPassword" -asplaintext -force
$credentials = New-Object System.Net.NetworkCredential("TestUsername", $password, "TestDomain")

$Ptr = [System.Runtime.InteropServices.Marshal]::SecureStringToCoTaskMemUnicode($credentials.password)
$result = [System.Runtime.InteropServices.Marshal]::PtrToStringUni($Ptr)
[System.Runtime.InteropServices.Marshal]::ZeroFreeCoTaskMemUnicode($Ptr)
$result
4

5 回答 5

53

干得好：

$password = ConvertTo-SecureString 'P@ssw0rd' -AsPlainText -Force

$Ptr = [System.Runtime.InteropServices.Marshal]::SecureStringToCoTaskMemUnicode($password)
$result = [System.Runtime.InteropServices.Marshal]::PtrToStringUni($Ptr)
[System.Runtime.InteropServices.Marshal]::ZeroFreeCoTaskMemUnicode($Ptr)
$result

P@ssw0rd

于 2011-09-19T10:27:13.163 回答
20

对于“System.Net.NetworkCredential”对象，您需要做的就是读取字符串密码。

$password = convertto-securestring "TestPassword" -asplaintext -force
$credentials = New-Object System.Net.NetworkCredential("TestUsername", $password, "TestDomain")
$credentials.Password
TestPassword

$credentials | gm

TypeName: System.Net.NetworkCredential

Name           MemberType Definition
----           ---------- ----------
Equals         Method     bool Equals(System.Object obj)
GetCredential  Method     System.Net.NetworkCredential GetCredential(uri uri, str
GetHashCode    Method     int GetHashCode()
GetType        Method     type GetType()
ToString       Method     string ToString()
Domain         Property   string Domain {get;set;}
Password       Property   string Password {get;set;}
SecurePassword Property   securestring SecurePassword {get;set;}
UserName       Property   string UserName {get;set;}

如果您最终得到一个 PSCredential 对象，请通过 Get-Credential 等交互式命令使用

$credentials=Get-Credential
$credentials.GetNetworkCredential().UserName
TestUsername
$credentials.GetNetworkCredential().Domain
TestDomain
$credentials.GetNetworkCredential().Password
TestPassword

有关详细信息，请参阅http://blogs.technet.com/b/heyscriptingguy/archive/2013/03/26/decrypt-powershell-secure-string-password.aspx。

注意：我在这个例子中使用了 PS 4。

于 2015-01-29T21:20:04.447 回答
7 
($credentials.GetNetworkCredential()).Password
于 2014-02-05T12:01:20.897 回答
5

详细说明http://blogs.msdn.com/b/besidethepoint/archive/2010/09/21/decrypt-secure-strings-in-powershell.aspx

我还有另一种稍微不同的方法。

$pass=convertto-securestring "P@ssw0rd" -asplaintext -force  | ConvertFrom-SecureString
[Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR( (ConvertTo-SecureString $pass) ))

P@ssw0rd

于 2013-11-13T09:56:13.623 回答
2

出于某种原因，上面Rob的帖子对我不起作用。我从另一个网站找到了答案。

多行代码版本：

$password = ConvertTo-SecureString "P@ssw0rd" -AsPlainText -Force

$decrypted = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($password)
$decryptedPassword = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($decrypted)
$decryptedPassword    # Outputs: P@ssw0rd

单行版本（您可以将其保存到变量中）：

# Outputs: P@ssw0rd
[System.Runtime.InteropServices.Marshal]::PtrToStringAuto([System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($password))
于 2021-04-01T20:03:11.787 回答