DataFlex

Load JWK into PublicKey Object

See more JSON Web Signatures (JWS) Examples

Demonstrates how to load a Java Web Key (JWK) into a Chilkat public key object. DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoSbJwk
    Handle hoPubkey
2    Handle hoSbJwk2
    Handle hoJson
    Variant vJsonJwk
    Handle hoJsonJwk
2    Handle hoPubkey2
    String sTemp1

    Move False To iSuccess

    // Imagine we have this JWK:

    // {
    // "kty":"RSA",
    // "kid":"bilbo.baggins@hobbiton.example",
    // "use":"sig",
    // "n":"26381066103266289976070039679240841999340706859156341823971393693544846472963839705790075117105560154606562987481050889935247188300178764426769543782451174831475924241862817098997865881169498995546309260357488285676768114714548754913374731868063116787903918383610614912211576698081222844057810710088656983077876282582286966085572172471849443305250452393766960762340311496052418952315081937000716222751229644449475751932222180738210988190709824209639002026650048655399108647971010890335494074025258268035713167380057822555485524738518699437692145859633592396626258745090144803752145540471688039673495588314804430463791",
    // "e":"65537"
    // }
    // 

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbJwk
    If (Not(IsComObjectCreated(hoSbJwk))) Begin
        Send CreateComObject of hoSbJwk
    End
    Get ComLoadFile Of hoSbJwk "qa_data/jwk/simple_jwk_rsa.json" "utf-8" To iSuccess
    If (iSuccess <> True) Begin
        Showln "Failed to load simple JWK file."
        Procedure_Return
    End

    // Loading it into a Chilkat public key object is easy:
    Get Create (RefClass(cComChilkatPublicKey)) To hoPubkey
    If (Not(IsComObjectCreated(hoPubkey))) Begin
        Send CreateComObject of hoPubkey
    End
    Get ComGetAsString Of hoSbJwk To sTemp1
    Get ComLoadFromString Of hoPubkey sTemp1 To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPubkey To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Simple JWK loaded into public key object."

    // ----------------------------------------------------------------------------------------------------------
    // Demonstrate how to load a JWK that is contained within JSON into a public key object.

    // {
    //   "alg":"RS256",
    //   "jwk":  {
    //           "kty":"RSA",
    //           "kid":"bilbo.baggins@hobbiton.example",
    //           "use":"sig",
    //           "n":"26381066103266289976070039679240841999340706859156341823971393693544846472963839705790075117105560154606562987481050889935247188300178764426769543782451174831475924241862817098997865881169498995546309260357488285676768114714548754913374731868063116787903918383610614912211576698081222844057810710088656983077876282582286966085572172471849443305250452393766960762340311496052418952315081937000716222751229644449475751932222180738210988190709824209639002026650048655399108647971010890335494074025258268035713167380057822555485524738518699437692145859633592396626258745090144803752145540471688039673495588314804430463791",
    //           "e":"65537"
    //           }
    // }

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbJwk2
    If (Not(IsComObjectCreated(hoSbJwk2))) Begin
        Send CreateComObject of hoSbJwk2
    End
    Get ComLoadFile Of hoSbJwk2 "qa_data/jwk/contained_jwk_rsa.json" "utf-8" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoSbJwk2 To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Get the "jwk" part of the JSON..
    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComGetAsString Of hoSbJwk2 To sTemp1
    Get ComLoad Of hoJson sTemp1 To iSuccess

    Get Create (RefClass(cComChilkatJsonObject)) To hoJsonJwk
    If (Not(IsComObjectCreated(hoJsonJwk))) Begin
        Send CreateComObject of hoJsonJwk
    End
    Get pvComObject of hoJsonJwk to vJsonJwk
    Get ComObjectOf2 Of hoJson "jwk" vJsonJwk To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoJson To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatPublicKey)) To hoPubkey2
    If (Not(IsComObjectCreated(hoPubkey2))) Begin
        Send CreateComObject of hoPubkey2
    End
    Get ComEmit Of hoJsonJwk To sTemp1
    Get ComLoadFromString Of hoPubkey2 sTemp1 To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoPubkey2 To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Contained JWK loaded into public key object."


End_Procedure