Upgrade to ElectionGuard v1.1.4 (#83)

- Use shared `read_json_object` function
- Remove custom ElementModQ serialization in guardian challenge

Author: rkorsak

Pipfile.lock

@@ -12,7 +12,7 @@
     verify_election_partial_key_challenge,
 )
 from electionguard.rsa import rsa_decrypt, rsa_encrypt
-from electionguard.serializable import write_json_object
+from electionguard.serializable import read_json_object, write_json_object
 from fastapi import APIRouter, HTTPException
 from typing import Any, List
 
@@ -28,7 +28,6 @@
     GuardianBackupRequest,
 )
 from ..tags import KEY_CEREMONY
-from app.utils import read_json_object
 
 router = APIRouter()
 
@@ -130,8 +129,7 @@ def create_backup_challenge(request: BackupChallengeRequest) -> Any:
         raise HTTPException(
             status_code=500, detail="Backup challenge generation failed"
         )
-    # FIXME Challenge value is ElementModQ converted to int that is too large
-    challenge = challenge._replace(value=str(challenge.value))
+
     return write_json_object(challenge)
 
 

app/api/v1/guardian/guardian.py

@@ -6,6 +6,7 @@
     ElectionDescription,
     InternalElectionDescription,
 )
+from electionguard.serializable import read_json_object
 from electionguard.tally import (
     publish_ciphertext_tally,
     publish_plaintext_tally,
@@ -15,7 +16,6 @@
 from fastapi import APIRouter, Body, HTTPException
 from typing import Any, List, Tuple
 
-from app.utils.serialize import read_json_object
 from ..models import (
     convert_tally,
     AppendTallyRequest,

app/api/v1/mediator/tally.py

@@ -5,8 +5,7 @@
 import electionguard.guardian
 import electionguard.key_ceremony
 import electionguard.schnorr
-
-from app.utils.serialize import read_json_object
+from electionguard.serializable import read_json_object
 
 from .base import Base
 from .key import AuxiliaryKeyPair, AuxiliaryPublicKey, ElectionKeyPair

app/api/v1/models/guardian.py

@@ -1,8 +1,8 @@
-from typing import Any, Dict, List
 import electionguard.election
+from electionguard.serializable import read_json_object
 import electionguard.tally
+from typing import Any, Dict, List
 
-from app.utils.serialize import read_json_object
 
 from .ballot import CiphertextAcceptedBallot
 from .base import Base