(Visual FoxPro) Iterate Keys and Certs in PEM

Demonstrates how to access each of the private keys and certs contained within a PEM.

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

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

LOCAL lnSuccess
LOCAL loPem
LOCAL lcPassword
LOCAL lcPemContent
LOCAL lnNumPrivateKeys
LOCAL i
LOCAL loPrivKey
LOCAL loCert
LOCAL lnNumCerts

lnSuccess = 0

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

loPem = CreateObject('Chilkat.Pem')

* Load the PEM from a file.
* If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
lcPassword = "myPassword"
lnSuccess = loPem.LoadPemFile("../myPemFiles/myPem.pem",lcPassword)
IF (lnSuccess = 0) THEN
    ? loPem.LastErrorText
    RELEASE loPem
    CANCEL
ENDIF

* Note: If the app already has the PEM pre-loaded in a string variable, then load it 
* by calling LoadPem instead.  
lcPemContent = "... the PEM contents ..."
lnSuccess = loPem.LoadPem(lcPemContent,lcPassword)
* Check for success as before..

* Iterate over the private keys.
lnNumPrivateKeys = loPem.NumPrivateKeys
i = 0

loPrivKey = CreateObject('Chilkat.PrivateKey')
DO WHILE i < lnNumPrivateKeys
    loPem.PrivateKeyAt(i,loPrivKey)
    ? "Private Key " + STR(i) + " is " + STR(loPrivKey.BitLength) + " in length"
    i = i + 1
ENDDO

* Iterate over the certificates.
loCert = CreateObject('Chilkat.Cert')
lnNumCerts = loPem.NumCerts
i = 0
DO WHILE i < lnNumCerts
    loPem.CertAt(i,loCert)
    ? "Certificate " + STR(i) + " : " + loCert.SubjectDN
    i = i + 1
ENDDO

RELEASE loPem
RELEASE loPrivKey
RELEASE loCert