Xbase++

Load .eml and Decrypt (smime.p7m)

Loads an encrypted email from a .eml file and decrypts using certificate w/ private key found in a .p12 (or .pfx) file.

The Content-Type and Content-Disposition email headers of the email to be decrypted look similar to this:

Content-Type: application/x-pkcs7-mime; smime-type=enveloped-data;
	name="smime.p7m"
Content-Disposition: attachment; filename="smime.p7m"

Xbase++

LOCAL nSuccess
LOCAL oEmail

nSuccess := 0

oEmail := CreateObject("Chilkat.Email")

//  Add a PFX (or .p12) to be used for decryption
nSuccess := oEmail:AddPfxSourceFile("myCert.p12", "passwordForP12")
IF (nSuccess != 1)
    ? oEmail:LastErrorText
    oEmail:destroy()
    RETURN
ENDIF

//  Loading the .eml automatically decrypts.
nSuccess := oEmail:LoadEml("encrypted.eml")
IF (nSuccess != 1)
    ? oEmail:LastErrorText
    oEmail:destroy()
    RETURN
ENDIF

//  The email now exists as it was prior to encryption.
//  Your app may access the email's subject, body, attachments,
//  etc. using the Chilkat Email API...

//  Save the decrypted email:
nSuccess := oEmail:SaveEml("decrypted.eml")
IF (nSuccess != 1)
    ? oEmail:LastErrorText
    oEmail:destroy()
    RETURN
ENDIF

? "Success."

oEmail:destroy()