Merge pull request #24 from vincentmdealmeida/EventSetupDecrypt
The generic functionality of the event_vote page has been replicated …
This commit is contained in:
Vincent
GitHub
commit
7e601a25e3
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@ -253,14 +253,16 @@ def event_trustee_setup(request, event_id):
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email_key = event.keys.filter(key=access_key)
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if email_key.exists() and event.users_trustees.filter(email=email_key[0].user.email).exists():
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if TrusteeKey.objects.filter(event=event, user=email_key[0].user).exists():
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messages.add_message(request, messages.WARNING, 'You have already submitted your key for this event')
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return HttpResponseRedirect(reverse("user_home"))
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return render(request, "polls/event_setup.html", {"is_trustee": True,
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"can_submit": False,
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"access_denied_reason": "You have already submitted your public key for this event. Thank you!"
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})
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if request.method == "POST":
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form = EventSetupForm(request.POST)
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# If form data is valid, create a TrusteeKey object with the supplied public key
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if form.is_valid():
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public_key = request.POST["public_key"]
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public_key = request.POST.get("public_key")
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key = TrusteeKey.objects.get_or_create(event=event, user=email_key[0].user)[0]
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key.key = public_key
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key.save()
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@ -280,11 +282,18 @@ def event_trustee_setup(request, event_id):
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return HttpResponseRedirect(reverse("user_home"))
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else:
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form = EventSetupForm()
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return render(request, "polls/event_setup.html", {"event": event, "form": form, "user_email": email_key[0].user.email})
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return render(request, "polls/event_setup.html", {"event": event,
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"form": form,
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"user_email": email_key[0].user.email,
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"is_trustee": True,
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"can_submit": True
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})
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#if no key or is invalid?
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messages.add_message(request, messages.WARNING, 'You do not have permission to access: ' + request.path)
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return HttpResponseRedirect(reverse("user_home"))
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else:
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return render(request, "polls/event_setup.html", {"is_trustee": False,
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"can_submit": False,
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"access_denied_reason": "You do not have permission to access this page."
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})
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def event_end(request, event_id):
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@ -311,11 +320,10 @@ def event_trustee_decrypt(request, event_id):
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if email_key.exists() and event.users_trustees.filter(email=trustee.email).exists():
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if PartialBallotDecryption.objects.filter(event=event, user=trustee).count() == event.total_num_opts():
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warning_msg = 'You have already provided your decryption key for this event - Thank You'
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messages.add_message(request, messages.WARNING, warning_msg)
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return HttpResponseRedirect(reverse("user_home"))
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return render(request, "polls/event_decrypt.html", {"is_trustee": True,
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"can_submit": False,
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"access_denied_reason": "You have already submitted your partial decryptions for this event. Thank you!"
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})
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elif request.method == "GET":
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# Get the Trustee's original PK - used in the template for SK validation
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trustee_pk = TrusteeKey.objects.get(event=event, user=trustee).key
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@ -344,7 +352,9 @@ def event_trustee_decrypt(request, event_id):
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"event": event,
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"user_email": trustee.email,
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"trustee_pk": trustee_pk,
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"poll_ciphers": poll_ciphers
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"poll_ciphers": poll_ciphers,
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"is_trustee": True,
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"can_submit": True
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})
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elif request.method == "POST":
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@ -359,7 +369,7 @@ def event_trustee_decrypt(request, event_id):
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input_name = str("")
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input_name = "poll-" + str(i) + "-cipher-" + str(j)
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part_dec = request.POST[input_name]
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part_dec = request.POST.get(input_name)
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PartialBallotDecryption.objects.create(event=event,
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poll=polls[i],
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@ -381,8 +391,10 @@ def event_trustee_decrypt(request, event_id):
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return HttpResponseRedirect(reverse("user_home"))
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# Without an access key, the client does not have permission to access this page
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messages.add_message(request, messages.WARNING, 'You do not have permission to decrypt this Event.')
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return HttpResponseRedirect(reverse("user_home"))
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return render(request, "polls/event_decrypt.html", {"is_trustee": False,
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"can_submit": False,
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"access_denied_reason": "You don't have permission to access this page."
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})
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def manage_questions(request, event_id):
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@ -22,6 +22,7 @@
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<script src="{% static 'js/event_vote.js' %}" type="text/javascript"></script>
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<script src="{% static 'js/vote_audit.js' %}" type="text/javascript"></script>
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<script src="{% static 'js/encrypt.js' %}" type="text/javascript"></script>
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<script src="{% static 'js/event_setup.js' %}" type="text/javascript"></script>
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<script type="text/javascript" src="{% static 'js/core/rand.js' %}"></script>
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<script type="text/javascript" src="{% static 'js/core/rom_curve.js' %}"></script>
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@ -66,73 +67,6 @@
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}
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function getBytes(arr) {
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for(var i = 0; i < arr.length; i++) {
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arr[i] = parseInt(arr[i]);
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}
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return new Uint8Array(arr);
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}
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//new function
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demosEncrypt.decryptSubmitCiphers = function() {
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};
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//new function
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demosEncrypt.generateKeys = function() {
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var parameter = $("#event-param").val();
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var tempParams = JSON.parse(JSON.parse(parameter).crypto);
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//the full objects need to be initalised as per the library, then copy the values we need into it
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//I follow Bingsheng's code as to what objects are used in the parameter object
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var ctx = new CTX("BN254CX"); //new context we can use
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var n = new ctx.BIG();
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var g1 = new ctx.ECP();
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var g2 = new ctx.ECP2();
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//copying the values
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n.copy(tempParams.n);
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g1.copy(tempParams.g1);
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g2.copy(tempParams.g2);
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var params = {
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n:n,
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g1:g1,
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g2:g2
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}
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var PKbytes = [];
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var SKbytes = [];
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var keypair = keyGen(params);
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keypair.PK.toBytes(PKbytes);
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keypair.SK.toBytes(SKbytes);
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var PKB64Encoded = "";
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for(let i = 0; i < PKbytes.length; i++) {
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PKB64Encoded += btoa(PKbytes[i]);
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}
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var SKB64Encoded = "";
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for(let j = 0; j < SKbytes.length; j++) {
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SKB64Encoded += btoa(SKbytes[j]);
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}
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$('input#public-key').val(PKB64Encoded);
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$('input#secret-key').val(SKB64Encoded);
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//mostly code from before here
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var blob = new Blob([SKB64Encoded], {type : 'text/plain'});
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var dlBtn = $('a#download-btn');
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var url = URL.createObjectURL(blob);
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var fileName = $(dlBtn).attr("href", url);
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$(dlBtn).attr("download", "sk-{% block sk-file-name %}{% endblock %}".replace(/[\W]/g, "-"));
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$(dlBtn).attr("disabled", false);
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$("#public-submit").attr("disabled", false);
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}
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//these other functions might not be used
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//I don't think this is used
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demosEncrypt.downloadSecretKey = function() {
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@ -4,77 +4,86 @@
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{% block sk-file-name %}{{ event.title|safe }}{% endblock %}
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{% block content %}
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<script type="text/javascript">
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// This is what we expect the SK supplied by the trustee to generate
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var trustee_pk = "{{ trustee_pk }}";
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var tempParams = "{{ event.EID_crypto|escapejs }}";
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tempParams = JSON.parse(tempParams);
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</script>
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{% if is_trustee and can_submit %}
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<script type="text/javascript">
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// This is what we expect the SK supplied by the trustee to generate
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var trustee_pk = "{{ trustee_pk }}";
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<div class="container">
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<h2>Trustee Event Decryption for Event '{{ event.title }}'</h2>
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<hr/>
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<div class="panel panel-default">
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<div class="panel-heading"><strong>Upload your Secret Key as '{{ user_email }}'</strong></div>
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<div class="panel panel-body">
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<input id="secret-key" name="secret-key" class="textinput textInput form-control" type="text" disabled/>
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<div class="alert alert-info" role="alert" style="margin-top: 0.75em;">
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Your secret key will be used to decrypt the event and get a vote tally for every poll.
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It won't be sent to the server.
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var tempParams = "{{ event.EID_crypto|escapejs }}";
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tempParams = JSON.parse(tempParams);
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</script>
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<div class="container">
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<h2>Trustee Event Decryption for Event '{{ event.title }}'</h2>
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<hr/>
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<div class="panel panel-default">
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<div class="panel-heading"><strong>Upload your Secret Key as '{{ user_email }}'</strong></div>
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<div class="panel panel-body">
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<input id="secret-key" name="secret-key" class="textinput textInput form-control" type="text" disabled/>
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<div class="alert alert-info" role="alert" style="margin-top: 0.75em;">
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Your secret key will be used to decrypt the event and get a vote tally for every poll.
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It won't be sent to the server.
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</div>
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<label for="files_sk_upload" class="btn btn-primary">
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<span class="glyphicon glyphicon-cloud-upload"></span>
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Upload Key
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</label>
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<input type="file" id="files_sk_upload" name="file" class="btn-info">
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</div>
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<label for="files_sk_upload" class="btn btn-primary">
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<span class="glyphicon glyphicon-cloud-upload"></span>
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Upload Key
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</label>
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<input type="file" id="files_sk_upload" name="file" class="btn-info">
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</div>
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<br/>
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<div class="panel-heading"><strong>Encrypted Event Data</strong></div>
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<div class="panel panel-body">
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<form id="cipher-form" method="POST">
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{% csrf_token %}
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{% for opts_ciphers in poll_ciphers %}
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{% for cipher in opts_ciphers %}
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<input id="cipher"
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name="poll-{{ forloop.parentloop.counter0 }}-cipher-{{ forloop.counter0 }}"
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class="textinput textInput form-control"
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type="text"
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value="{ "C1": "{{ cipher.C1 }}", "C2": "{{ cipher.C2 }}" }"
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/>
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<br/>
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<div class="panel-heading"><strong>Encrypted Event Data</strong></div>
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<div class="panel panel-body">
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<form id="cipher-form" method="POST">
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{% csrf_token %}
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{% for opts_ciphers in poll_ciphers %}
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{% for cipher in opts_ciphers %}
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<input id="cipher"
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name="poll-{{ forloop.parentloop.counter0 }}-cipher-{{ forloop.counter0 }}"
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class="textinput textInput form-control"
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type="text"
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value="{ "C1": "{{ cipher.C1 }}", "C2": "{{ cipher.C2 }}" }"
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/>
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<br/>
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{% endfor %}
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<br/>
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{% endfor %}
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<br/>
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{% endfor %}
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<button id="decrypt-btn"
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onclick="decryptSubmitCiphers()"
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class="btn btn-success">
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Send Partial Decryptions</button>
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</form>
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<button id="decrypt-btn"
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type="button"
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onclick="decryptSubmit()"
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class="btn btn-success">
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Send Partial Decryptions</button>
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</form>
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</div>
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</div>
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</div>
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</div>
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<!-- Information Dialog called upon request -->
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<div class="modal fade" id="modalDialog" role="dialog" tabindex="-1" data-backdrop="static">
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<div class="modal-dialog" role="document">
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<!-- Dialog content-->
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<div class="modal-content">
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<div class="modal-header">
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<h4 class="modal-title" style="text-align: center"><strong>Partial Decryption Successfully Received</strong></h4>
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</div>
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<div class="modal-body">
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<p>Thank you! You can now close down this page.</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
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</div>
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</div>
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</div>
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</div>
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<!-- Information Dialog called upon request -->
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<div class="modal fade" id="EventDecryptionModalDialog" role="dialog" tabindex="-1" data-backdrop="static">
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<div class="modal-dialog" role="document">
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<!-- Dialog content-->
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<div class="modal-content">
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<div class="modal-header">
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<h4 class="modal-title" style="text-align: center"><strong>Partial Decryptions Successfully Received</strong></h4>
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</div>
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<div class="modal-body">
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<p>Thank you! You can now close down this page.</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
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</div>
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</div>
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</div>
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</div>
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{% else %}
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<div class="container">
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<div class="alert alert-warning" role="alert">
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<p>{{ access_denied_reason }}</p>
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</div>
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</div>
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{% endif %}
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{% endblock %}
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@ -6,34 +6,66 @@
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{% block content %}
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<div class="container">
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<h2>Trustee Event Setup for Event '{{ event.title }}'</h2>
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<hr/>
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<h4>Key Generation For: {{ user_email }}</h4>
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<br/>
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<div class="panel panel-default">
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<div class="panel-heading"><strong>Step 1: Generate and Download Your Secret Key</strong></div>
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<div class="panel panel-body">
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<input id="secret-key" class="textinput textInput form-control" type="text"/>
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<input id="event-param" type="text" value="{{event.EID}}" hidden/>
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<div class="alert alert-warning" role="alert" style="margin-top: 0.75em;">
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<strong>Warning:</strong> This key can <strong>NOT</strong> be recalculated if forgotten or lost! Ensure you back this up.
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<script type="text/javascript">
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var EVENT_TITLE = "{{ event.title|safe }}";
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</script>
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{% if is_trustee and can_submit %}
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<div class="container">
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<h2>Trustee Event Setup for Event '{{ event.title }}'</h2>
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<hr/>
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<h4>Key Generation For: {{ user_email }}</h4>
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<br/>
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<div class="panel panel-default">
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<div class="panel-heading"><strong>Step 1: Generate and Download Your Secret Key</strong></div>
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<div class="panel panel-body">
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<input id="secret-key" class="textinput textInput form-control" type="text"/>
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<input id="event-param" type="text" value="{{event.EID}}" hidden/>
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<div class="alert alert-warning" role="alert" style="margin-top: 0.75em;">
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<strong>Warning:</strong> This key can <strong>NOT</strong> be recalculated if forgotten or lost! Ensure you back this up.
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</div>
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<button id="keygen-btn" onclick="generateKeys()" class="btn btn-success">Generate</button>
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<a id="download-btn" role="button" href="#" class="btn btn-primary" disabled>Download</a>
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</div>
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</div>
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<div class="panel panel-default">
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<div class="panel-heading"><strong>Step 2: Submit Your Public Key</strong></div>
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<div class="panel panel-body">
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{% load crispy_forms_tags %}
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<form method="post" action="" class="">
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{% crispy form %}
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<p>Ensure your secret key is backed up before submitting.</p>
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<button id="public-submit" class="btn btn-danger" type="button" onclick="submitPublicKey()" disabled>Submit</button>
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</form>
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</div>
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</div>
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<button id="keygen-btn" onclick="demosEncrypt.generateKeys()" class="btn btn-success">Generate</button>
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<a id="download-btn" role="button" href="#" class="btn btn-primary" disabled>Download</a>
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</div>
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</div>
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<div class="panel panel-default">
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<div class="panel-heading"><strong>Step 2: Submit Your Public Key</strong></div>
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<div class="panel panel-body">
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{% load crispy_forms_tags %}
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<form method="post" action="" class="">
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{% crispy form %}
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<p>Ensure your secret key is backed up before submitting.</p>
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<input id="public-submit" class="btn btn-danger" type="submit" value="Submit" disabled/>
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</form>
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<!-- Information Dialog called upon request -->
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<div class="modal fade" id="EventSetupModalDialog" role="dialog" tabindex="-1" data-backdrop="static">
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<div class="modal-dialog" role="document">
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<!-- Dialog content-->
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<div class="modal-content">
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<div class="modal-header">
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<h4 class="modal-title" style="text-align: center"><strong>Public Key Successfully Received</strong></h4>
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</div>
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<div class="modal-body">
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<p>Thank you! You can now close down this page.</p>
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</div>
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<div class="modal-footer">
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<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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{% else %}
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<div class="container">
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<div class="alert alert-warning" role="alert">
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<p>{{ access_denied_reason }}</p>
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</div>
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</div>
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{% endif %}
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{% endblock %}
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@ -1,6 +1,7 @@
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// -------------- Global vars --------------------
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var filesHandleSK = document.getElementById('files_sk_upload');
|
||||
var CSRF = $( "input[name='csrfmiddlewaretoken']" ).val();
|
||||
var partialDecryptions = {};
|
||||
|
||||
// -------------- Helper fns --------------------
|
||||
//SK checking algorithm - If PK and SK matches, it returns True; otherwise, it returns false.
|
||||
|
|
@ -15,6 +16,14 @@ function csrfSafeMethod(method) {
|
|||
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
|
||||
}
|
||||
|
||||
function getBytes(arr) {
|
||||
for(var i = 0; i < arr.length; i++) {
|
||||
arr[i] = parseInt(arr[i]);
|
||||
}
|
||||
|
||||
return new Uint8Array(arr);
|
||||
}
|
||||
|
||||
function getKeyBytes(key, byteArray) {
|
||||
for(let i = 0; i < key.length; i += 4) {
|
||||
let B64EncodedByte = key.substring(i, i + 4);
|
||||
|
|
@ -23,8 +32,8 @@ function getKeyBytes(key, byteArray) {
|
|||
}
|
||||
}
|
||||
|
||||
function showDialog(titleTxt, bodyTxt) {
|
||||
var modalDialog = $('#modalDialog');
|
||||
function showDecryptDialog(titleTxt, bodyTxt) {
|
||||
var modalDialog = $('#EventDecryptionModalDialog');
|
||||
var title = modalDialog.find('.modal-title');
|
||||
var body = modalDialog.find('.modal-body');
|
||||
|
||||
|
|
@ -79,7 +88,7 @@ function validateSKFromString(SKStr) {
|
|||
return skCheck(ctx, params, sk, pk);
|
||||
}
|
||||
|
||||
function decryptSubmitCiphers() {
|
||||
function decryptSubmit() {
|
||||
var skString = $('#secret-key').val();
|
||||
|
||||
if (!skString) {
|
||||
|
|
@ -96,7 +105,6 @@ function decryptSubmitCiphers() {
|
|||
|
||||
inputs.each(function() { //for each ciphertext to decrypt
|
||||
let input = $(this);
|
||||
console.log(input.attr('name'));
|
||||
|
||||
var ciphertext = {
|
||||
C1: null,
|
||||
|
|
@ -116,10 +124,38 @@ function decryptSubmitCiphers() {
|
|||
var bytes = [];
|
||||
partial.D.toBytes(bytes);
|
||||
input.val(bytes.toString());
|
||||
|
||||
partialDecryptions[input.attr('name')] = bytes.toString();
|
||||
});
|
||||
|
||||
submitPartialDecryptions();
|
||||
}
|
||||
}
|
||||
|
||||
function onAfterPartialDecryptionsSend() {
|
||||
showDecryptDialog('Partial Decryptions Successfully Received',
|
||||
'Thank you! You can now close down this page.');
|
||||
}
|
||||
|
||||
function submitPartialDecryptions() {
|
||||
$.ajaxSetup({
|
||||
beforeSend: function(xhr, settings) {
|
||||
if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
|
||||
xhr.setRequestHeader("X-CSRFToken", CSRF);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
$.ajax({
|
||||
type : "POST",
|
||||
url : window.location,
|
||||
data : partialDecryptions,
|
||||
success : function(){
|
||||
onAfterPartialDecryptionsSend();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
function processFileSKChange(event) {
|
||||
var files = event.target.files;
|
||||
|
||||
|
|
@ -153,4 +189,9 @@ function processFileSKChange(event) {
|
|||
|
||||
if(filesHandleSK) {
|
||||
filesHandleSK.addEventListener('change', processFileSKChange, false);
|
||||
}
|
||||
}
|
||||
|
||||
$('#EventDecryptionModalDialog').on('hide.bs.modal', function (e) {
|
||||
// Update page to reflect the fact that the PK submission has taken place
|
||||
location.reload();
|
||||
});
|
||||
|
|
@ -0,0 +1,105 @@
|
|||
var CSRF = $( "input[name='csrfmiddlewaretoken']" ).val();
|
||||
|
||||
function csrfSafeMethod(method) {
|
||||
// these HTTP methods do not require CSRF protection
|
||||
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
|
||||
}
|
||||
|
||||
function showSetupDialog(titleTxt, bodyTxt) {
|
||||
var modalDialog = $('#EventSetupModalDialog');
|
||||
var title = modalDialog.find('.modal-title');
|
||||
var body = modalDialog.find('.modal-body');
|
||||
|
||||
title.text(titleTxt);
|
||||
var bodyText = bodyTxt;
|
||||
|
||||
var p = document.createElement("p");
|
||||
p.innerHTML = bodyText;
|
||||
body.empty();
|
||||
body.append( p );
|
||||
|
||||
modalDialog.modal('show');
|
||||
}
|
||||
|
||||
function generateKeys() {
|
||||
var parameter = $("#event-param").val();
|
||||
var tempParams = JSON.parse(JSON.parse(parameter).crypto);
|
||||
//the full objects need to be initalised as per the library, then copy the values we need into it
|
||||
//I follow Bingsheng's code as to what objects are used in the parameter object
|
||||
var ctx = new CTX("BN254CX"); //new context we can use
|
||||
var n = new ctx.BIG();
|
||||
var g1 = new ctx.ECP();
|
||||
var g2 = new ctx.ECP2();
|
||||
|
||||
//copying the values
|
||||
n.copy(tempParams.n);
|
||||
g1.copy(tempParams.g1);
|
||||
g2.copy(tempParams.g2);
|
||||
|
||||
var params = {
|
||||
n:n,
|
||||
g1:g1,
|
||||
g2:g2
|
||||
}
|
||||
|
||||
var PKbytes = [];
|
||||
var SKbytes = [];
|
||||
|
||||
var keypair = keyGen(params);
|
||||
keypair.PK.toBytes(PKbytes);
|
||||
keypair.SK.toBytes(SKbytes);
|
||||
|
||||
var PKB64Encoded = "";
|
||||
for(let i = 0; i < PKbytes.length; i++) {
|
||||
PKB64Encoded += btoa(PKbytes[i]);
|
||||
}
|
||||
|
||||
var SKB64Encoded = "";
|
||||
for(let j = 0; j < SKbytes.length; j++) {
|
||||
SKB64Encoded += btoa(SKbytes[j]);
|
||||
}
|
||||
|
||||
$('input#public-key').val(PKB64Encoded);
|
||||
$('input#secret-key').val(SKB64Encoded);
|
||||
|
||||
//mostly code from before here
|
||||
var blob = new Blob([SKB64Encoded], {type : 'text/plain'});
|
||||
|
||||
var dlBtn = $('a#download-btn');
|
||||
var url = URL.createObjectURL(blob);
|
||||
$(dlBtn).attr("href", url);
|
||||
|
||||
let fileName = "sk-" + EVENT_TITLE.replace(/[\W]/g, "-");
|
||||
$(dlBtn).attr("download", fileName);
|
||||
$(dlBtn).attr("disabled", false);
|
||||
$("#public-submit").attr("disabled", false);
|
||||
}
|
||||
|
||||
function onAfterKeySend() {
|
||||
showSetupDialog('Public Key Successfully Received',
|
||||
'Thank you! You can now close down this page.');
|
||||
}
|
||||
|
||||
function submitPublicKey() {
|
||||
$.ajaxSetup({
|
||||
beforeSend: function(xhr, settings) {
|
||||
if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
|
||||
xhr.setRequestHeader("X-CSRFToken", CSRF);
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
$.ajax({
|
||||
type : "POST",
|
||||
url : window.location,
|
||||
data : { public_key: $('input#public-key').val() },
|
||||
success : function(){
|
||||
onAfterKeySend();
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
$('#EventSetupModalDialog').on('hide.bs.modal', function (e) {
|
||||
// Update page to reflect the fact that the PK submission has taken place
|
||||
location.reload();
|
||||
});
|
||||
Reference in New Issue