(编辑：jimmy 日期: 2025/10/27 浏览：2)
适用于Powershell3.0及以后版本。
假设你需要给文件加密，下面教你如何给自己的文件加密：
$Path = "$env:temp\secret.txt" $Secret = 'Hello World!' $Passphrase = 'Some secret key' $key = [Byte[]]($Passphrase.PadRight(24).Substring(0,24).ToCharArray()) $Secret | ConvertTo-SecureString -AsPlainText -Force | ConvertFrom-SecureString -Key $key | Out-File -FilePath $Path notepad $Path
当你需要解密出里面的内容，这时就需要最初的密码:
$Passphrase = Read-Host 'Enter the secret pass phrase'
$Path = "$env:temp\secret.txt"
$key = [Byte[]]($Passphrase.PadRight(24).Substring(0,24).ToCharArray())
try
{
$decryptedTextSecureString = Get-Content -Path $Path -Raw |
ConvertTo-SecureString -Key $key -ErrorAction Stop
$cred = New-Object -TypeName System.Management.Automation.PSCredential('dummy', $decryptedTextSecureString)
$decryptedText = $cred.GetNetworkCredential().Password
}
catch
{
$decryptedText = '(wrong key)'
}
"The decrypted secret text: $decryptedText"