(PowerBuilder) Generate Brainpool EC Keys (BP256R1, BP384R1, BP512R1, ...)

Demonstrates how to generate brainpool EC keys.

The brainpool elliptic curve (EC) is a set of standardized elliptic curves defined for use in cryptographic applications. These curves are defined over finite fields and are widely used for implementing elliptic curve cryptography (ECC) algorithms.

The brainpool curves were developed by the brainpool project, a collaborative effort initiated by the German Federal Office for Information Security (BSI) to define standardized elliptic curves with well-established security properties.

Note: Requires Chilkat v9.5.0.98 or later.

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

integer li_rc
oleobject loo_Fortuna
string ls_Entropy
integer li_Success
oleobject loo_Ecc
oleobject loo_PrivKey

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

// Create a Fortuna PRNG and seed it with system entropy.
// This will be our source of random data for generating the brainpool EC private key.
loo_Fortuna = create oleobject
// Use "Chilkat_9_5_0.Prng" for versions of Chilkat < 10.0.0
li_rc = loo_Fortuna.ConnectToNewObject("Chilkat.Prng")
if li_rc < 0 then
    destroy loo_Fortuna
    MessageBox("Error","Connecting to COM object failed")
    return
end if
ls_Entropy = loo_Fortuna.GetEntropy(32,"base64")
li_Success = loo_Fortuna.AddEntropy(ls_Entropy,"base64")

loo_Ecc = create oleobject
// Use "Chilkat_9_5_0.Ecc" for versions of Chilkat < 10.0.0
li_rc = loo_Ecc.ConnectToNewObject("Chilkat.Ecc")

// You can generate keys using any of the following brainpool EC curves:
// (case does not matter)  
// BP160R1
// BP192R1
// BP224R1
// BP256R1
// BP320R1
// BP384R1
// BP512R1

loo_PrivKey = loo_Ecc.GenEccKey("bp256r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()

// Save the private key to PKCS8 encrypted PEM
// (The private key can be saved in a variety of different formats. See the online reference documentation.)
li_Success = loo_PrivKey.SavePkcs8EncryptedPemFile("pemPassword","c:/temp/qa_output/eccKey123.pem")
if li_Success <> 1 then
    Write-Debug loo_PrivKey.LastErrorText
end if

destroy loo_PrivKey

loo_PrivKey = loo_Ecc.GenEccKey("bp160r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()
destroy loo_PrivKey

loo_PrivKey = loo_Ecc.GenEccKey("bp192r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()
destroy loo_PrivKey

loo_PrivKey = loo_Ecc.GenEccKey("bp224r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()
destroy loo_PrivKey

loo_PrivKey = loo_Ecc.GenEccKey("bp320r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()
destroy loo_PrivKey

loo_PrivKey = loo_Ecc.GenEccKey("bp384r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()
destroy loo_PrivKey

loo_PrivKey = loo_Ecc.GenEccKey("bp512r1",loo_Fortuna)
if loo_Ecc.LastMethodSuccess <> 1 then
    Write-Debug loo_Ecc.LastErrorText
    destroy loo_Fortuna
    destroy loo_Ecc
    return
end if

Write-Debug loo_PrivKey.GetXml()
destroy loo_PrivKey

Write-Debug "Finished generating Brainpool EC keys."


destroy loo_Fortuna
destroy loo_Ecc