UnicodeDecodeError in sqlalchemy_utils.types.encrypted

[xrmx]

With 0.32.14 and python 3.4 we hit this on superset (apache/superset#2600):

  File "/venv/lib/python3.4/site-packages/sqlalchemy_utils/types/encrypted.py", line 262, in process_result_value
    decrypted_value = self.engine.decrypt(value)
  File "/venv/lib/python3.4/site-packages/sqlalchemy_utils/types/encrypted.py", line 90, in decrypt
    decrypted = decrypted.decode('utf-8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf1 in position 2: invalid continuation byte

Any hint on what could be wrong?

[xrmx]

Sorted out, the error is returned when the key used for decryption is wrong. Is it a correct interpretation? Do you think it makes sense to catch that and return something more explicit?

[kvesteri]

Yeah I think it makes sense to catch it and return something more explicit. @mehcode what do you think?

[mehcode]

I've gotten that error a dozen times and I've just penciled in bad key / access denied in my error memory.

I agree something that explicitly says that would be nice.