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DataFlex Examples

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(DataFlex) Export a Certificate's Private Key to Various Formats

Loads a digital certificate and private key from a PFX file (also known as PKCS#12) and exports the private key to various formats: (1) PKCS8 Encrypted, (2) PKCS8 Encrypted PEM, (3) PKCS8 unencrypted, (4) PKCS8 PEM unencrypted, (5) RSA DER unencrypted, (6) RSA PEM unencrypted, (7) XML.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoCert
    String sPfxFilename
    String sPfxPassword
    Boolean iSuccess
    Variant vPrivKey
    Handle hoPrivKey
    String sPassword
    String sPath
    String sTemp1
    Boolean bTemp1

    Get Create (RefClass(cComChilkatCert)) To hoCert
    If (Not(IsComObjectCreated(hoCert))) Begin
        Send CreateComObject of hoCert
    End

    // Load from the PFX file
    Move "/Users/chilkat/testData/pfx/chilkat_ssl_pwd_is_test.pfx" To sPfxFilename
    Move "test" To sPfxPassword

    // A PFX typically contains certificates in the chain of authentication.
    // The Chilkat cert object will choose the certificate w/
    // private key farthest from the root authority cert.
    // To access all the certificates in a PFX, use the 
    // Chilkat certificate store object instead.
    Get ComLoadPfxFile Of hoCert sPfxFilename sPfxPassword To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoCert To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Get the private key...

    Get ComExportPrivateKey Of hoCert To vPrivKey
    If (IsComObject(vPrivKey)) Begin
        Get Create (RefClass(cComChilkatPrivateKey)) To hoPrivKey
        Set pvComObject Of hoPrivKey To vPrivKey
    End
    Get ComLastMethodSuccess Of hoCert To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoCert To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Export to various formats:

    Move "secret" To sPassword

    // PKCS8 Encrypted DER
    Move "/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.der" To sPath
    Get ComSavePkcs8EncryptedFile Of hoPrivKey sPassword sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    // PKCS8 Encrypted PEM
    Move "/Users/chilkat/testData/privkeys/chilkat_pkcs8_enc.pem" To sPath
    Get ComSavePkcs8EncryptedPemFile Of hoPrivKey sPassword sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    // PKCS8 Unencrypted DER
    Move "/Users/chilkat/testData/privkeys/chilkat_pkcs8.der" To sPath
    Get ComSavePkcs8File Of hoPrivKey sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    // PKCS8 Unencrypted PEM
    Move "/Users/chilkat/testData/privkeys/chilkat_pkcs8.pem" To sPath
    Get ComSavePkcs8PemFile Of hoPrivKey sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    //  RSA DER (unencrypted)
    Move "/Users/chilkat/testData/privkeys/chilkat_rsa.der" To sPath
    Get ComSaveRsaDerFile Of hoPrivKey sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    // RSA PEM (unencrypted)
    Move "/Users/chilkat/testData/privkeys/chilkat_rsa.pem" To sPath
    Get ComSaveRsaPemFile Of hoPrivKey sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    // XML (unencrypted)
    Move "/Users/chilkat/testData/privkeys/chilkat.xml" To sPath
    Get ComSaveXmlFile Of hoPrivKey sPath To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoPrivKey To sTemp1
        Showln sTemp1
        Send Destroy of hoPrivKey
        Procedure_Return
    End

    Send Destroy of hoPrivKey

    Showln "Private key exported to all formats."


End_Procedure

 

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