VBScript - encrypt a password based off computer name

I've tried using some of the posted encryption functions on here, but can't seem to get them to do what I'm looking for exactly.

I'm looking for a VBScript that I can run via GPO or some other means that will set the local Administrator password. I am fine with the part of the script that will set the password, all I need is an encryption function that I can pass 2 variables: the local computer name, and a static string. The function needs to take those 2 strings and create a cryptic password. On any given computer, since the computer name will not change and neither will the string, the function will return the same password every time, unless the computer name changes. This will make sure each machine has a unique password.

The funtion I'm using now works, but generates a lot of different ASCII characters, so most of them can't be typed out easily on the keyboard.

Does anyone out there have any basic fucntions that might help me out.

Thanks
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AGCITAsked:
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Mark_FreeSoftwareConnect With a Mentor Commented:

try this:

option explicit

MsgBox (encodeString("My Computer", "static string"))



Function encodeString(str1 , str2 )
Const cStrA = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
Dim StrB,tmpStr,n,j
    StrB = "0987654321QWERTYUIOPLKJHGFDSAZXCVBNMmnbvcxzasdfghjklpoiuytrewq"
   tmpStr = str1 & str2
   encodeString = ""
For n = 1 To Len(tmpStr) - 1
   j = InStr(cStrA, Mid(tmpStr, n, 1))
   If j > 0 Then
      encodeString = encodeString & Mid(StrB, j, 1)
      StrB = Right(StrB, Len(StrB) - 1) & Left(StrB, 1)
   End If
Next
End Function
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jmundsackCommented:
You could encode the computer name and static string using Base64, which consists of only printable characters.

Check out these links:

Encode to Base64:
http://www.motobit.com/tips/detpg_Base64Encode/

Decode from Base64:
http://www.motobit.com/tips/detpg_Base64/

HTH-Jon
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