DataFlex

Load an Encrypted Private Key from a PEM File

Demonstrates the Chilkat PrivateKey.LoadEncryptedPemFile 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.

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.

Background: The file-based encrypted loader — the natural choice for a .pem key stored with a passphrase, as most deployment keys are. It decrypts encrypted PKCS #8 PEM and also accepts unencrypted files, so it works whether or not the specific file is protected. Supply the passphrase from a secure source.

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DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoPrivKey
    String sPassword
    String sTemp1

    Move False To iSuccess

    //  Demonstrates the PrivateKey.LoadEncryptedPemFile 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.

    Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
    If (Not(IsComObjectCreated(hoPrivKey))) Begin
        Send CreateComObject of hoPrivKey
    End

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

    Get ComLoadEncryptedPemFile Of hoPrivKey "qa_data/private_encrypted.pem" sPassword To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComKeyType Of hoPrivKey To sTemp1
    Showln "Loaded a " sTemp1 " private key."


End_Procedure