(PowerBuilder) Convert DSA PEM Private Key to DER

Converts a DSA private key from PEM format to DER. The first part of the example will convert an unencrypted PEM to DER, then 2nd part will convert an encrypted PEM to unencrypted DER.

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

integer li_rc
oleobject loo_Dsa
string ls_PemPrivateKey
integer li_Success

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

loo_Dsa = create oleobject
// Use "Chilkat_9_5_0.Dsa" for versions of Chilkat < 10.0.0
li_rc = loo_Dsa.ConnectToNewObject("Chilkat.Dsa")
if li_rc < 0 then
    destroy loo_Dsa
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Load a PEM private key.

ls_PemPrivateKey = loo_Dsa.LoadText("dsa_priv.pem")
// Import the unencrypted PEM into the DSA object.
li_Success = loo_Dsa.FromPem(ls_PemPrivateKey)
if li_Success <> 1 then
    Write-Debug loo_Dsa.LastErrorText
    destroy loo_Dsa
    return
end if

// Write it out as a DER file:
li_Success = loo_Dsa.ToDerFile("dsa_priv.der")
if li_Success <> 1 then
    Write-Debug loo_Dsa.LastErrorText
    destroy loo_Dsa
    return
end if

// Load an encrypted PEM private key.
ls_PemPrivateKey = loo_Dsa.LoadText("dsa_privEncrypted.pem")
// Import the encrypted PEM into the DSA object.
li_Success = loo_Dsa.FromEncryptedPem("myPassword",ls_PemPrivateKey)
if li_Success <> 1 then
    Write-Debug loo_Dsa.LastErrorText
    destroy loo_Dsa
    return
end if

// Write it out as an unencrypted DER file:
li_Success = loo_Dsa.ToDerFile("dsa_priv2.der")
if li_Success <> 1 then
    Write-Debug loo_Dsa.LastErrorText
    destroy loo_Dsa
    return
end if

Write-Debug "Finished!"


destroy loo_Dsa