(Visual FoxPro) Decrypt2

Demonstrates how to decrypt MIME using a certificate and private key where the certificate and its corresponding private key are stored in separate files -- a .cer for the certificate, and a .pem for the private key.

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

LOCAL loMime
LOCAL loCert
LOCAL lnSuccess
LOCAL loPrivKey

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

* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Mime')
loMime = CreateObject('Chilkat.Mime')

* Load the certificate from a .cer file.
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.Cert')
loCert = CreateObject('Chilkat.Cert')
lnSuccess = loCert.LoadFromFile("aaworkarea/myCert.cer")
IF (lnSuccess = 0) THEN
    ? loCert.LastErrorText
    RELEASE loMime
    RELEASE loCert
    CANCEL
ENDIF

* Load the private key from an encrypted PEM file.
* (A private key can be loaded from other file formats also..)
* For versions of Chilkat < 10.0.0, use CreateObject('Chilkat_9_5_0.PrivateKey')
loPrivKey = CreateObject('Chilkat.PrivateKey')
lnSuccess = loPrivKey.LoadEncryptedPemFile("aaworkarea/myPrivateKey.pem","myPassword")
IF (lnSuccess = 0) THEN
    ? loPrivKey.LastErrorText
    RELEASE loMime
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

lnSuccess = loMime.LoadMimeFile("aaworkarea/encryptedMime.txt")
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

* Decrypt using the cert and associated private key
lnSuccess = loMime.Decrypt2(loCert,loPrivKey)
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

* Save the S/MIME to a file.
lnSuccess = loMime.SaveMime("aaworkarea/decryptedMime.txt")
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    RELEASE loCert
    RELEASE loPrivKey
    CANCEL
ENDIF

? "success!"

RELEASE loMime
RELEASE loCert
RELEASE loPrivKey