Visual FoxPro

Convert Cert + Key to PEM and PFX

See more Certificates Examples

This example is based on the following question from a Chilkat customer:

We receive 2 files :

    MyCertificate.p7b
    MyCertificate-privatekey.pkey

We have to transform these certificate like this:

First convert it to PEM like this:

openssl pkcs7 -in MyCertificate.p7b -inform DER -out MyCertificate.pem -print_certs

Now we get MyCertificate.pem

Last step, we need to convert it to pfx file:

openssl pkcs12 -export -inkey moncertificat-privatekey.pkey  -in  moncertificat.pem -out moncertificat.pfx

Is there a way to make all these steps with Chilkat ?

I will be nice to include this directly in our software instead of askig the user to do it manualy.

Visual FoxPro

LOCAL lnSuccess
LOCAL loCert
LOCAL loPrivKey

lnSuccess = 0

loCert = CreateObject('Chilkat.Cert')
loPrivKey = CreateObject('Chilkat.PrivateKey')

* Load any type of certificate (.cer, .p7b, .pem, etc.) by calling LoadFromFile.
lnSuccess = loCert.LoadFromFile("qa_data/certs/sample_cert_a.cer")
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

* Load the private key.
* (The various privKey methods that load from a file will automatically detect
* the format.  It doesn't actually matter if you try to load a non-PKCS8 format private key
* by calling LoadPkcs8EncryptedFile -- internally Chilkat will detect the format and will load
* based on what it finds.)
lnSuccess = loPrivKey.LoadPkcs8EncryptedFile("qa_data/certs/sample_key_a.pkcs8","password")
IF (lnSuccess <> 1) THEN
    ? loPrivKey.LastErrorText
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

* Write the cert as PEM.
lnSuccess = loCert.ExportCertPemFile("qa_output/cert.pem")

* Or get the PEM string directly...
? loCert.ExportCertPem()

* Associate the private key with the cert object.
lnSuccess = loCert.SetPrivateKey(loPrivKey)
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

* Write the cert + private key to a .pfx file.
lnSuccess = loCert.ExportToPfxFile("qa_data/myPfx.pfx","password",1)
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

? "Success."

RELEASE loCert
RELEASE loPrivKey