DataFlex

Load a Private Key from a PKCS #8 File

Demonstrates the Chilkat PrivateKey.LoadPkcs8File method, which loads a private key from a file. The only argument is the file path. Despite the name, it accepts any supported unencrypted private-key representation, not only PKCS #8.

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: PKCS #8 is the modern standard container for a private key of any algorithm (RSA, EC, Ed25519), in DER (binary) or PEM. This method reads the unencrypted form and, helpfully, inspects the content so it also loads other unencrypted representations that happen to be in the file. For an encrypted PKCS #8 file, use LoadPkcs8EncryptedFile.

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Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoPrivKey
    String sTemp1

    Move False To iSuccess

    //  Demonstrates the PrivateKey.LoadPkcs8File method, which loads a private key from a file.  The
    //  only argument is the file path.  Despite the name, it accepts any supported unencrypted
    //  private-key representation, not only unencrypted PKCS #8.

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

    Get ComLoadPkcs8File Of hoPrivKey "qa_data/private_pkcs8.der" 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