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：
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$Path = "$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 $Path
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当你需要解密出里面的内容，这时就需要最初的密码:
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$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"
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