DataFlex

Load a Public Key from a String

Demonstrates the Chilkat PublicKey.LoadFromString method, which loads a public key from a string. The only argument is the string. Chilkat examines the content and recognizes PEM public keys, unencrypted PEM private keys (taking only the public portion), XML, JWK, and more.

Background: This is the forgiving text loader: rather than requiring you to know the exact format, it inspects whatever string you provide and figures it out. A useful convenience is that it accepts an unencrypted private key too and keeps only the public half — handy when you have a key pair but need just the public key. Use it whenever the textual format is uncertain or varies by source.

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DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoPubKey
    String sKeyText
    String sTemp1

    Move False To iSuccess

    //  Demonstrates the PublicKey.LoadFromString method, which loads a public key from a string.  The
    //  only argument is the string.  Chilkat examines the content and recognizes PEM public keys,
    //  unencrypted PEM private keys (using only the public portion), XML, JWK, and more.

    Get Create (RefClass(cComChilkatPublicKey)) To hoPubKey
    If (Not(IsComObjectCreated(hoPubKey))) Begin
        Send CreateComObject of hoPubKey
    End

    //  The PEM text of a public key.
    Move "-----BEGIN PUBLIC KEY-----" + (character(10)) + "MIIBIjANBgkq...IDAQAB" + (character(10)) + "-----END PUBLIC KEY-----" To sKeyText

    Get ComLoadFromString Of hoPubKey sKeyText To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPubKey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComKeyType Of hoPubKey To sTemp1
    Showln "Loaded a " sTemp1 " public key."


End_Procedure