#34246: Feature: Add new type of fields - cryptofields
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Reporter: Nikolay Fedorov | Owner: nobody
Type: New feature | Status: new
Component: Forms | Version: 4.1
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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**Idea**
Add new type of fields - cryptofields which store data in the database in
encrypted form (bytes) and crypt and decrypt data on the fly.
As example with Fernet (symmetric encryption).
{{{
from django.db import models
from cryptography.fernet import Fernet
CRYPTO_KEY = b'99lectrHf-urwE8CEXAqCf2UofCb-K-rEiT_VdRWhXY='
class CryptoCharField(models.CharField):
description = _("Crypto char field")
def value_from_object(self, obj):
val = getattr(obj, self.attname)
if val not in (None, "", b""):
val = settings.CYPHER.decrypt(val).decode('utf-8')
return val
def get_internal_type(self):
return "BinaryField"
def get_db_prep_value(self, value, connection, prepared=False):
value = super().get_db_prep_value(value, connection, prepared)
if value is not None:
return
connection.Database.Binary(Fernet(CRYPTO_KEY).encrypt(value.encode('utf-8')))
return value
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/34246>
Django <https://code.djangoproject.com/>
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