DataFlex

Export a Private Key as PKCS #8 PEM

Demonstrates the Chilkat PrivateKey.GetPkcs8Pem method, which exports the loaded key as unencrypted PKCS #8 PEM (-----BEGIN PRIVATE KEY-----). It takes no arguments.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: PKCS #8 is the modern, algorithm-independent container — the same PRIVATE KEY PEM wrapper holds RSA, EC, or Ed25519 keys alike, which is why it is the format most current tooling expects. Being unencrypted, the PEM carries the key material in the clear, so treat the output as sensitive. Use GetPkcs8EncryptedPem when the exported key needs a passphrase.

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DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoPrivKey
    String sPem
    String sTemp1
    Boolean bTemp1

    Move False To iSuccess

    //  Load a private key to export.
    Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
    If (Not(IsComObjectCreated(hoPrivKey))) Begin
        Send CreateComObject of hoPrivKey
    End
    Get ComLoadPemFile Of hoPrivKey "qa_data/private.pem" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    //  Export as unencrypted PKCS #8 PEM ("-----BEGIN PRIVATE KEY-----").  PKCS #8 is an
    //  algorithm-independent container that works for RSA, EC, and Ed25519.
    Get ComGetPkcs8Pem Of hoPrivKey To sPem
    Get ComLastMethodSuccess Of hoPrivKey To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln sPem


End_Procedure