(VBScript) Convert DSA DER Private Key to PEM

Converts a DSA private key from DER format to PEM. Demonstrates how to write both encrypted and unencrypted PEM formatted private keys.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Dsa")
set dsa = CreateObject("Chilkat.Dsa")

' Load a DER private key.
success = dsa.FromDerFile("dsa_priv.der")
If (success <> 1) Then
    outFile.WriteLine(dsa.LastErrorText)
    WScript.Quit
End If

' Save to unencrypted PEM:
pemStr = dsa.ToPem()
success = dsa.SaveText(pemStr,"dsa_priv.pem")
If (success <> 1) Then
    outFile.WriteLine(dsa.LastErrorText)
    WScript.Quit
End If

' Save to encrypted PEM:
pemStr = dsa.ToEncryptedPem("myPassword")
success = dsa.SaveText(pemStr,"dsa_privEncrypted.pem")
If (success <> 1) Then
    outFile.WriteLine(dsa.LastErrorText)
    WScript.Quit
End If

outFile.WriteLine("Finished!")

outFile.Close