(PowerBuilder) Generate an RSA Key and Get as Base64 DER

Demonstrates how to generate a 2048-bit RSA key and return the public and private parts as unencrypted Base64 encoded DER.

Note: This example requires Chilkat v11.0.0 or greater.

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

integer li_rc
integer li_Success
oleobject loo_Rsa
oleobject loo_PrivKey
oleobject loo_PubKey
integer li_BChoosePkcs1
string ls_PubKeyBase64Der
string ls_PrivKeyPkcs1
string ls_PrivKeyPkcs8

li_Success = 0

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

loo_Rsa = create oleobject
li_rc = loo_Rsa.ConnectToNewObject("Chilkat.Rsa")
if li_rc < 0 then
    destroy loo_Rsa
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Generate a 2048-bit key.
loo_PrivKey = create oleobject
li_rc = loo_PrivKey.ConnectToNewObject("Chilkat.PrivateKey")

li_Success = loo_Rsa.GenKey(2048,loo_PrivKey)
if li_Success = 0 then
    Write-Debug loo_Rsa.LastErrorText
    destroy loo_Rsa
    destroy loo_PrivKey
    return
end if

// Get the public part of the key.
loo_PubKey = create oleobject
li_rc = loo_PubKey.ConnectToNewObject("Chilkat.PublicKey")

loo_PrivKey.ToPublicKey(loo_PubKey)

// There are two possible formats for representing the RSA public key 
// in ASN.1 (DER).  The possible formats are PKCS1 and PKCS8.
// We can get either by setting bChoosePkcs1 to 1 or 0.
li_BChoosePkcs1 = 1
ls_PubKeyBase64Der = loo_PubKey.GetEncoded(li_BChoosePkcs1,"base64")
Write-Debug "Public Key Base64 DER:"
Write-Debug ls_PubKeyBase64Der

// Get the private key as Base64 DER:
// We can get PKCS1 or PKCS8, but with different methods:
ls_PrivKeyPkcs1 = loo_PrivKey.GetPkcs1ENC("base64")
Write-Debug "Private Key PKCS1 Base64 DER:"
Write-Debug ls_PrivKeyPkcs1

ls_PrivKeyPkcs8 = loo_PrivKey.GetPkcs8ENC("base64")
Write-Debug "Private Key PKCS8 Base64 DER:"
Write-Debug ls_PrivKeyPkcs8


destroy loo_Rsa
destroy loo_PrivKey
destroy loo_PubKey