(PureBasic) PKCS7 Decrypt MIME

Loads a PKCS7 encrypted MIME file and decrypts. The cert and private key used for decryption is loaded from a PFX file.

Chilkat PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkMime.pb"

Procedure ChilkatExample()

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

    mime.i = CkMime::ckCreate()
    If mime.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Load the MIME
    success.i = CkMime::ckLoadMimeFile(mime,"encryptedMime.txt")
    If success = 0
        Debug CkMime::ckLastErrorText(mime)
        CkMime::ckDispose(mime)
        ProcedureReturn
    EndIf

    ; The AddPfxSourceFile and/or AddPfxSourceData
    ; methods may be called one or more times (one per PFX)
    ; to add sources from which the MIME component will
    ; search for certificates and private keys when decrypting.
    pfxPassword.s = "myPassword"
    success = CkMime::ckAddPfxSourceFile(mime,"myCertAndPrivateKey.pfx",pfxPassword)
    If success = 0
        Debug CkMime::ckLastErrorText(mime)
        CkMime::ckDispose(mime)
        ProcedureReturn
    EndIf

    ; Decrypt...
    success = CkMime::ckDecrypt(mime)
    If success = 0
        Debug CkMime::ckLastErrorText(mime)
        CkMime::ckDispose(mime)
        ProcedureReturn
    EndIf

    ; Display the decrypted MIME:
    Debug CkMime::ckGetMime(mime)


    CkMime::ckDispose(mime)


    ProcedureReturn
EndProcedure