Ruby

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. Ruby

require 'chilkat'

success = false

# Imagine we have this JWK:

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

sbJwk = Chilkat::CkStringBuilder.new()
success = sbJwk.LoadFile("qa_data/jwk/simple_jwk_rsa.json","utf-8")
if (success != true)
    print "Failed to load simple JWK file." + "\n";
    exit
end

# Loading it into a Chilkat public key object is easy:
pubkey = Chilkat::CkPublicKey.new()
success = pubkey.LoadFromString(sbJwk.getAsString())
if (success == false)
    print pubkey.lastErrorText() + "\n";
    exit
end

print "Simple JWK loaded into public key object." + "\n";

# ----------------------------------------------------------------------------------------------------------
# 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 = Chilkat::CkStringBuilder.new()
success = sbJwk2.LoadFile("qa_data/jwk/contained_jwk_rsa.json","utf-8")
if (success == false)
    print sbJwk2.lastErrorText() + "\n";
    exit
end

# Get the "jwk" part of the JSON..
json = Chilkat::CkJsonObject.new()
json.Load(sbJwk2.getAsString())

jsonJwk = Chilkat::CkJsonObject.new()
success = json.ObjectOf2("jwk",jsonJwk)
if (success == false)
    print json.lastErrorText() + "\n";
    exit
end

pubkey2 = Chilkat::CkPublicKey.new()
success = pubkey2.LoadFromString(jsonJwk.emit())
if (success == false)
    print pubkey2.lastErrorText() + "\n";
    exit
end

print "Contained JWK loaded into public key object." + "\n";