(PowerBuilder) Duplicate OpensSSL Command that Decrypts Binary DER

This example duplicates the following:

openssl smime -decrypt -in INPUT_FILE -inform der -binary -out OUTPUT_FILE -recip PEM_CERT_AND_KEY -passin pass:PRIVKEY_PASSWORD

Note: Although "smime" is the OpenSSL command, we're not really dealing with S/MIME. The arguments "-inform der -binary" indicate that the input is simply the binary DER (i.e. the PKCS7 binary encrypted object). The output can be any type of file (whatever was encrypted).

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

integer li_rc
oleobject loo_Crypt
oleobject loo_Pem
integer li_Success
oleobject loo_Privkey
oleobject loo_Cert

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

loo_Crypt = create oleobject
li_rc = loo_Crypt.ConnectToNewObject("Chilkat_9_5_0.Crypt2")
if li_rc < 0 then
    destroy loo_Crypt
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Crypt.CryptAlgorithm = "pki"

loo_Pem = create oleobject
li_rc = loo_Pem.ConnectToNewObject("Chilkat_9_5_0.Pem")

li_Success = loo_Pem.LoadPemFile("qa_data/pem/myPem.pem","password")
if li_Success <> 1 then
    Write-Debug loo_Pem.LastErrorText
    destroy loo_Crypt
    destroy loo_Pem
    return
end if

loo_Privkey = loo_Pem.GetPrivateKey(0)
if loo_Pem.LastMethodSuccess <> 1 then
    Write-Debug loo_Pem.LastErrorText
    destroy loo_Crypt
    destroy loo_Pem
    return
end if

loo_Cert = loo_Pem.GetCert(0)
if loo_Pem.LastMethodSuccess <> 1 then
    destroy loo_Privkey
    Write-Debug loo_Pem.LastErrorText
    destroy loo_Crypt
    destroy loo_Pem
    return
end if

li_Success = loo_Crypt.SetDecryptCert2(loo_Cert,loo_Privkey)
if li_Success <> 1 then
    destroy loo_Privkey
    destroy loo_Cert
    Write-Debug loo_Crypt.LastErrorText
    destroy loo_Crypt
    destroy loo_Pem
    return
end if

destroy loo_Privkey
destroy loo_Cert

li_Success = loo_Crypt.CkDecryptFile("qa_data/infile.enc","qa_output/outfile.dat")
if li_Success <> 1 then
    Write-Debug loo_Crypt.LastErrorText
    destroy loo_Crypt
    destroy loo_Pem
    return
end if

Write-Debug "Success."


destroy loo_Crypt
destroy loo_Pem