Functions to crypt and decrypt string

encrypt-decrypt.ps1

# http://community.idera.com/powershell/powertips/b/tips/posts/encrypting-text-information-using-passphrase
function encrypt{
	param(
	[string]$pass,
	[string]$text
	)
	$key = [Byte[]]($pass.PadRight(24).Substring(0,24).ToCharArray())
	# $secure = $text | ConvertTo-SecureString -AsPlainText -Force | ConvertFrom-SecureString -Key $key
	$secure = $text |
	ConvertTo-SecureString -AsPlainText -Force | 
	ConvertFrom-SecureString -Key $key
	return $secure
}
encrypt -pass "pass" -text "blablaa"


function decrypt{
	param(
		[string]$pass
		[string]$secure
	)
	
	$key = [Byte[]]($pass.PadRight(24).Substring(0,24).ToCharArray())
	try
	{
	  $textSecureString = $secure |
	  ConvertTo-SecureString -Key $key -ErrorAction Stop

	  $cred = New-Object -TypeName System.Management.Automation.PSCredential('dummy', $textSecureString)
	  $text = $cred.GetNetworkCredential().Password
	}
	catch
	{
	  $text = '(wrong key)'
	}
	return $text
}
decrypt -pass "pass" -secure "76492d1116743f0423413b16050a5345MgB8AGgAZwBaAE0ATwBNAE4AVwB6AFMAZQAvADAATAAyAFMAWQByAHkANwBWAHcAPQA9AHwAYgAxAGYAYwA3ADIAMAAxADEAZQBmAGQANAA0AGEAOAA3AGQAZAA4ADYAOAAxAGMAZQA5ADYAZgAxAGMAMgA1AA=="