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PureBasic

Add a Private Key and Certificate Chain to a PFX

See more PFX/P12 Examples

Demonstrates Pfx.AddPrivateKey, which adds a private key together with its certificate chain to the PFX object.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

Background. The chain must contain at least one certificate; the certificate at index 0 is treated as the leaf. The chain is built here with Cert.BuildCertChain.

Chilkat PureBasic Downloads

PureBasic
IncludeFile "CkCert.pb"
IncludeFile "CkPrivateKey.pb"
IncludeFile "CkCertChain.pb"
IncludeFile "CkPfx.pb"

Procedure ChilkatExample()

    success.i = 0

    pfx.i = CkPfx::ckCreate()
    If pfx.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ;  The file path is relative to the application's current working directory.  An absolute path
    ;  may also be used.  Supply the path appropriate to your own environment.
    ;  Load the private key.
    privKey.i = CkPrivateKey::ckCreate()
    If privKey.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkPrivateKey::ckLoadPemFile(privKey,"qa_data/private_key.pem")
    If success = 0
        Debug CkPrivateKey::ckLastErrorText(privKey)
        CkPfx::ckDispose(pfx)
        CkPrivateKey::ckDispose(privKey)
        ProcedureReturn
    EndIf

    ;  Load the certificate and build its chain of authority.  The chain must contain at least one
    ;  certificate; the certificate at index 0 is treated as the leaf.
    cert.i = CkCert::ckCreate()
    If cert.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkCert::ckLoadFromFile(cert,"qa_data/cert.pem")
    If success = 0
        Debug CkCert::ckLastErrorText(cert)
        CkPfx::ckDispose(pfx)
        CkPrivateKey::ckDispose(privKey)
        CkCert::ckDispose(cert)
        ProcedureReturn
    EndIf

    chain.i = CkCertChain::ckCreate()
    If chain.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkCert::ckBuildCertChain(cert,chain)
    If success = 0
        Debug CkCert::ckLastErrorText(cert)
        CkPfx::ckDispose(pfx)
        CkPrivateKey::ckDispose(privKey)
        CkCert::ckDispose(cert)
        CkCertChain::ckDispose(chain)
        ProcedureReturn
    EndIf

    ;  Add the private key and its certificate chain to the PFX.
    success = CkPfx::ckAddPrivateKey(pfx,privKey,chain)
    If success = 0
        Debug CkPfx::ckLastErrorText(pfx)
        CkPfx::ckDispose(pfx)
        CkPrivateKey::ckDispose(privKey)
        CkCert::ckDispose(cert)
        CkCertChain::ckDispose(chain)
        ProcedureReturn
    EndIf

    Debug "Private key and certificate chain added to the PFX."


    CkPfx::ckDispose(pfx)
    CkPrivateKey::ckDispose(privKey)
    CkCert::ckDispose(cert)
    CkCertChain::ckDispose(chain)


    ProcedureReturn
EndProcedure