(Lianja) AddDetachedSignaturePk

Demonstrates how to add a detached signature using a certifcate and it's corresponding private key. The easiest way of doing it is when both the certificate and private key are contained together within a PFX (.pfx or .p12) file. This example demonstrates how to use the certificate and its corresponding private key when they are stored in separate files -- a .cer for the certificate, and a .pem for the private key.

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loMime = createobject("CkMime")

// Load the certificate from a .cer file.
loCert = createobject("CkCert")
llSuccess = loCert.LoadFromFile("aaworkarea/myCert.cer")
if (llSuccess = .F.) then
    ? loCert.LastErrorText
    release loMime
    release loCert
    return
endif

// Load the private key from an encrypted PEM file.
// (A private key can be loaded from other file formats also..)
loPrivKey = createobject("CkPrivateKey")
llSuccess = loPrivKey.LoadEncryptedPemFile("aaworkarea/myPrivateKey.pem","myPassword")
if (llSuccess = .F.) then
    ? loPrivKey.LastErrorText
    release loMime
    release loCert
    release loPrivKey
    return
endif

llSuccess = loMime.SetBodyFromPlainText("This is the plain-text MIME body.")

// Sign the MIME (adds a PKCS7 detached signature)
llSuccess = loMime.AddDetachedSignaturePk(loCert,loPrivKey)
if (llSuccess = .F.) then
    ? loMime.LastErrorText
    release loMime
    release loCert
    release loPrivKey
    return
endif

// Save the S/MIME to a file.
llSuccess = loMime.SaveMime("aaworkarea/signedMime.txt")
if (llSuccess = .F.) then
    ? loMime.LastErrorText
    release loMime
    release loCert
    release loPrivKey
    return
endif

? "success!"


release loMime
release loCert
release loPrivKey