B4X

Decrypt2

See more MIME Examples

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. B4X

Dim success As Boolean = False

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

Dim mime As ChilkatMime
mime.Initialize

'  Load the certificate from a .cer file.
Dim cert As ChilkatCert
cert.Initialize("cert")
success = cert.LoadFromFile("aaworkarea/myCert.cer")
If success = False Then
    Log(cert.LastErrorText)
    Return
End If


'  Load the private key from an encrypted PEM file.
'  (A private key can be loaded from other file formats also..)
Dim privKey As ChilkatPrivateKey
privKey.Initialize("privKey")
success = privKey.LoadEncryptedPemFile("aaworkarea/myPrivateKey.pem", "myPassword")
If success = False Then
    Log(privKey.LastErrorText)
    Return
End If

success = mime.LoadMimeFile("aaworkarea/encryptedMime.txt")
If success = False Then
    Log(mime.LastErrorText)
    Return
End If


'  Decrypt using the cert and associated private key
success = mime.Decrypt2(cert, privKey)
If success = False Then
    Log(mime.LastErrorText)
    Return
End If


'  Save the S/MIME to a file.
success = mime.SaveMime("aaworkarea/decryptedMime.txt")
If success = False Then
    Log(mime.LastErrorText)
    Return
End If


Log("success!")