Hi,

Try the following code,

from odoo import models, fields, api

from cryptography.fernet import Fernet

import base64

KEY = b'your_32_byte_key_here=='  # You must securely store this key

cipher = Fernet(KEY)

class ResPartner(models.Model):

    _inherit = 'res.partner'

    _encrypted_email = fields.Char(string="Encrypted Email", readonly=True)

    @api.depends('_encrypted_email')

    def _compute_email(self):

        for rec in self:

            try:

                rec.email = cipher.decrypt(rec._encrypted_email.encode()).decode()

            except:

                rec.email = ''

    email = fields.Char(compute="_compute_email", inverse="_inverse_email", store=True)

    def _inverse_email(self):

        for rec in self:

            if rec.email:

                rec._encrypted_email = cipher.encrypt(rec.email.encode()).decode()

Hope it helps