ドメインページを最適化する

backend/app/core/security.py

@@ -35,6 +35,8 @@ def create_access_token(*, data: dict, expires_delta: timedelta = None):
     return encoded_jwt
 
 def chacha20Encrypt(plaintext:str, key=config.KINTONE_PSW_CRYPTO_KEY):
+    if plaintext is None or plaintext == '':
+        return None
     nonce = os.urandom(16)
     algorithm = algorithms.ChaCha20(key, nonce)
     cipher = Cipher(algorithm, mode=None)