Xbase++ Requires Chilkat v11.0.0+

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. Xbase++

LOCAL nSuccess
LOCAL oSbJwk
LOCAL oPubkey
LOCAL oSbJwk2
LOCAL oJson
LOCAL oJsonJwk
LOCAL oPubkey2

nSuccess := 0

//  Imagine we have this JWK:

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

oSbJwk := CreateObject("Chilkat.StringBuilder")
nSuccess := oSbJwk:LoadFile("qa_data/jwk/simple_jwk_rsa.json", "utf-8")
IF (nSuccess != 1)
    ? "Failed to load simple JWK file."
    oSbJwk:destroy()
    RETURN
ENDIF

//  Loading it into a Chilkat public key object is easy:
oPubkey := CreateObject("Chilkat.PublicKey")
nSuccess := oPubkey:LoadFromString(oSbJwk:GetAsString())
IF (nSuccess == 0)
    ? oPubkey:LastErrorText
    oSbJwk:destroy()
    oPubkey:destroy()
    RETURN
ENDIF

? "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"
//            }
//  }

oSbJwk2 := CreateObject("Chilkat.StringBuilder")
nSuccess := oSbJwk2:LoadFile("qa_data/jwk/contained_jwk_rsa.json", "utf-8")
IF (nSuccess == 0)
    ? oSbJwk2:LastErrorText
    oSbJwk:destroy()
    oPubkey:destroy()
    oSbJwk2:destroy()
    RETURN
ENDIF

//  Get the "jwk" part of the JSON..
oJson := CreateObject("Chilkat.JsonObject")
oJson:Load(oSbJwk2:GetAsString())

oJsonJwk := CreateObject("Chilkat.JsonObject")
nSuccess := oJson:ObjectOf2("jwk", oJsonJwk)
IF (nSuccess == 0)
    ? oJson:LastErrorText
    oSbJwk:destroy()
    oPubkey:destroy()
    oSbJwk2:destroy()
    oJson:destroy()
    oJsonJwk:destroy()
    RETURN
ENDIF

oPubkey2 := CreateObject("Chilkat.PublicKey")
nSuccess := oPubkey2:LoadFromString(oJsonJwk:Emit())
IF (nSuccess == 0)
    ? oPubkey2:LastErrorText
    oSbJwk:destroy()
    oPubkey:destroy()
    oSbJwk2:destroy()
    oJson:destroy()
    oJsonJwk:destroy()
    oPubkey2:destroy()
    RETURN
ENDIF

? "Contained JWK loaded into public key object."

oSbJwk:destroy()
oPubkey:destroy()
oSbJwk2:destroy()
oJson:destroy()
oJsonJwk:destroy()
oPubkey2:destroy()