Load an Encrypted PKCS #8 Private Key File

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Demonstrates the Chilkat PrivateKey.LoadPkcs8EncryptedFile method, which loads a private key from a file, using a password when the key is encrypted. The first argument is the file path and the second is the password. It handles encrypted PKCS #8 DER or PEM, and unencrypted forms.

Note: The file path is relative to the application's current working directory. Absolute paths may also be used. Supply the path to your own key file.

integer li_rc
integer li_Success
oleobject loo_PrivKey
string ls_Password

li_Success = 0

//  Demonstrates the PrivateKey.LoadPkcs8EncryptedFile method, which loads a private key from a
//  file, using a password when the key is encrypted.  The 1st argument is the file path and the
//  2nd is the password.  It handles encrypted PKCS #8 DER or PEM, as well as unencrypted forms.

loo_PrivKey = create oleobject
li_rc = loo_PrivKey.ConnectToNewObject("Chilkat.PrivateKey")
if li_rc < 0 then
    destroy loo_PrivKey
    MessageBox("Error","Connecting to COM object failed")
    return
end if

//  The key password is not hard-coded in a real application; obtain it from an interactive
//  prompt, environment variable, or a secrets vault.
ls_Password = "myKeyPassword"

li_Success = loo_PrivKey.LoadPkcs8EncryptedFile("qa_data/private_pkcs8_enc.der",ls_Password)
if li_Success = 0 then
    Write-Debug loo_PrivKey.LastErrorText
    destroy loo_PrivKey
    return
end if

Write-Debug "Loaded a " + loo_PrivKey.KeyType + " private key."


destroy loo_PrivKey