PureBasic

Load a Private Key from PEM Text

Demonstrates the Chilkat PrivateKey.LoadPem method, which loads a private key from PEM text. The only argument is the PEM string. It has no password argument, so it cannot load an encrypted PEM — use LoadEncryptedPem for that.

Background: PEM is the Base64 text format (delimited by -----BEGIN----- lines) that most tooling uses for keys. This method is for the plain, unencrypted case where the key material sits in the clear inside the PEM — convenient, but it means the file itself is the only thing protecting the key. When the PEM is password-protected (a BEGIN ENCRYPTED PRIVATE KEY block or a legacy encrypted header), reach for the Encrypted loader instead.

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IncludeFile "CkPrivateKey.pb"

Procedure ChilkatExample()

    success.i = 0

    ;  Demonstrates the PrivateKey.LoadPem method, which loads a private key from PEM text.  The only
    ;  argument is the PEM string.  This method has no password argument, so it cannot load an
    ;  encrypted PEM -- use LoadEncryptedPem for that.

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

    ;  The PEM text of an unencrypted private key.
    pemText.s = "-----BEGIN PRIVATE KEY-----" + Chr(10) + "MIIEvAIBADANBgkq..." + Chr(10) + "-----END PRIVATE KEY-----"

    success = CkPrivateKey::ckLoadPem(privKey,pemText)
    If success = 0
        Debug CkPrivateKey::ckLastErrorText(privKey)
        CkPrivateKey::ckDispose(privKey)
        ProcedureReturn
    EndIf

    Debug "Loaded a " + CkPrivateKey::ckKeyType(privKey) + " private key."


    CkPrivateKey::ckDispose(privKey)


    ProcedureReturn
EndProcedure