(Chilkat2-Python) Load JWK into PublicKey Object

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

Note: This example requires Chilkat v9.5.0.66 or greater.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# Imagine we have this JWK:

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

sbJwk = chilkat2.StringBuilder()
success = sbJwk.LoadFile("qa_data/jwk/simple_jwk_rsa.json","utf-8")
if (success != True):
    print("Failed to load simple JWK file.")
    sys.exit()

# Loading it into a Chilkat public key object is easy:
pubkey = chilkat2.PublicKey()
success = pubkey.LoadFromString(sbJwk.GetAsString())
if (success != True):
    print(pubkey.LastErrorText)
    sys.exit()

print("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"
# }
# }

sbJwk2 = chilkat2.StringBuilder()
success = sbJwk2.LoadFile("qa_data/jwk/contained_jwk_rsa.json","utf-8")
if (success != True):
    print("Failed to load JWK file.")
    sys.exit()

# Get the "jwk" part of the JSON..
json = chilkat2.JsonObject()
json.Load(sbJwk2.GetAsString())

# jsonJwk is a CkJsonObject
jsonJwk = json.ObjectOf("jwk")
if (json.LastMethodSuccess != True):
    print("No jwk member exists.")
    sys.exit()

pubkey2 = chilkat2.PublicKey()
success = pubkey2.LoadFromString(jsonJwk.Emit())
if (success != True):
    print(pubkey2.LastErrorText)
    sys.exit()

print("Contained JWK loaded into public key object.")