New-SecureStringKey.ps1
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<#
.SYNOPSIS Generate random key for securestring encryption. .DESCRIPTION Generate random key for securestring encryption. .EXAMPLE PS C:\>New-SecureStringKey Generate random 16 byte (128-bit) key. .EXAMPLE PS C:\>$SecureKey = New-SecureStringKey -Length 32 PS C:\>$SecureString = ConvertTo-SecureString "Super Secret String" -AsPlainText -Force PS C:\>$EncryptedSecureString = ConvertFrom-SecureString $SecureString -SecureKey $SecureKey PS C:\>$DecryptedSecureString = ConvertTo-SecureString $EncryptedSecureString -SecureKey $SecureKey PS C:\>ConvertFrom-SecureStringAsPlainText $DecryptedSecureString Generate random 32 byte (256-bit) key and use it to encrypt another string. #> function New-SecureStringKey { param ( # Key length [Parameter(Mandatory=$false, Position=0, ValueFromPipeline=$true)] [ValidateSet(16,24,32)] [int] $Length = 16 ) [byte[]] $Key = Get-Random -InputObject ((0..255)*$Length) -Count $Length [securestring] $SecureKey = ConvertTo-SecureString -String ([System.Text.Encoding]::ASCII.GetString($Key)) -AsPlainText -Force return $SecureKey } |