Visual FoxPro

PKCS7 Encrypt MIME

See more MIME Examples

Encrypt MIME using a digital certificate to create PKCS7 encrypted S/MIME. Visual FoxPro

LOCAL lnSuccess
LOCAL loMime
LOCAL loCert

lnSuccess = 0

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

loMime = CreateObject('Chilkat.Mime')

*  Build a simple MIME message to be encrypted:
lnSuccess = loMime.AddHeaderField("Content-Type","text/plain")
lnSuccess = loMime.AddHeaderField("abc","123")
loMime.SetBody("This is a test")

*  A digital certificate is required to create PKCS7 encrypted MIME.
*  It can come from a variety of sources: .cer file, .pfx file, PEM files,
*  an in-memory representation, or directly from a Windows
*  registry-based certificate store.

*  This example will load a certificate object from a .cer file.
*  Note: Only the public-key is required to encrypt.  (Decryption
*  requires a private key.)

loCert = CreateObject('Chilkat.Cert')
lnSuccess = loCert.LoadFromFile("myCert.cer")
IF (lnSuccess = 0) THEN
    ? loCert.LastErrorText
    RELEASE loMime
    RELEASE loCert
    CANCEL
ENDIF

*  Encrypt the MIME:
lnSuccess = loMime.Encrypt(loCert)
IF (lnSuccess = 0) THEN
    ? loMime.LastErrorText
    RELEASE loMime
    RELEASE loCert
    CANCEL
ENDIF

*  Display the MIME:
? loMime.GetMime()

*  The resulting S/MIME looks something like this:

*  abc: 123
*  Content-Disposition: attachment; filename="smime.p7m";
*  Content-Transfer-Encoding: base64
*  Content-Type: application/x-pkcs7-mime;
*   name="smime.p7m";
*  
*  MIICAQYJKoZIhvcNAQcDoIIB8jCCAe4CAQAxggGFMIIBgQIBADBpMFUxCzAJBgNVBAYTAlpBMSUw
*  IwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQuMR8wHQYDVQQDExZUaGF3dGUgQ29k
*  ZSBTaWduaW5nIENBAhB4ouTcAmLszrGi170k1deSMA0GCSqGSIb3DQEBAQUABIIBABz59iwVufLZ
*  QIPs0whUYMtBjIQxg5IOCxpoKJeJmLVzu9Q5Q1poxG9uYOveybS9c4wbl5A0DFfKTW5O4HhHcOHW
*  TgcH4iqdwhiFWm/q9d5rjceJWBFQsGOcgoXSU/U2Xp+N47/+Pqyc5XJbxKnOc4YhPzO320JZsNB6
*  p1NGk5SNnWqgbUDmEnfH8ZPHSV7dNi2aiFALYTyLjyp0lqJCsdZ524OPTZFfusrl/9ibPAW7jKuI
*  FgDCcBtRJvolVF8iIHxaTw4rhk0qb1KWzxvB5j9HSLdyIKIPhZbxeS10bx18YkSsBlKfdKRalQag
*  3oWSRdsK9/N75YHG8Pm+x9BOHUAwYAYJKoZIhvcNAQcBMBkGCCqGSIb3DQMCMA0CAToECAb+toBW
*  txZigDhGZKSpUpuTiWvvSMemX/c79sSnMpuefVwGKFTDgXVLE2SoD5a9Yh5vcG7Mhl2IkilVwOMc
*  fi23+g==

RELEASE loMime
RELEASE loCert