(VBScript) Generate RSA Key and Export to Encrypted PEM

VBScript sample showing how to generate an RSA key and export to encrypted PEM.

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 assumes 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.Rsa")
set rsa = CreateObject("Chilkat.Rsa")

' Generate a 1024-bit key.  Chilkat RSA supports
' key sizes ranging from 512 bits to 4096 bits.
success = rsa.GenerateKey(1024)
If (success <> 1) Then
    outFile.WriteLine(rsa.LastErrorText)
    WScript.Quit
End If

' Get the private key as unencrypted XML:
keyXml = rsa.ExportPrivateKey()
outFile.WriteLine(keyXml)

' To encrypt the key -- meaning to get the key in
' an encrypted PEM format -- load it into a PrivateKey object,
' and then export to encrypted PEM:
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.PrivateKey")
set privKey = CreateObject("Chilkat.PrivateKey")

success = privKey.LoadXml(keyXml)
If (success <> 1) Then
    outFile.WriteLine(privKey.LastErrorText)
    WScript.Quit
End If

strEncPem = privKey.GetPkcs8EncryptedPem("myPassword")

' You now have the private key in an encrypted format,
' which may be (for example) saved to a database

outFile.Close