Insertion of encrypted and related data into Laravel 7 database

Question

Save, I need help. I am developing a system that has a user table and a table of enrollments. The registration data is related to the CPF registered in the Users table. The problem is that now I need to encrypt the data of the tables, I created user and registration Seeds, the user is created with the encryption normally, but the registration presents error that I believe is why I can not make the relationship with the table users.

Seed of users:

namespace Database\Seeders;

use Illuminate\Database\Seeder;
use Illuminate\Support\Facades\Crypt;
use App\Models\Usuarios;

class UsuarioSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        Usuarios::create([
            'nome' => Crypt::encryptString('Teste 2'), 
            'cpf' => Crypt::encryptString('000000'),
            'email' => Crypt::encryptString('[email protected]'),
            'telefone' => '000000', 
            'endereco' => 'nao tem', 
            'numero' => '50', 
            'complemento' => 'nao', 
            'bairro' => 'nao tem', 
            'cidade' => 'nao tem', 
            'estado' => 'nao tem', 
            'cep' => '00000000', 
            'celular' => '000000000000', 
            'password' => '$2y$10$kOAYngEkkn30WFwtePAX1ODrNNXtuCA0AKt9yhJSnZYFcqIVoj5LK', 
            'email_verified_at' => NULL, 
            'remember_token' => 'fpgOcf1SR5BLtb2GNEVigbCD2Zp7qrWMIDmwq7Qylp0vLRB4Oo7CiUG6LH46' 
        ]);

        Usuarios::create([
            'nome' => Crypt::encryptString('Teste 3'), 
            'cpf' => Crypt::encryptString('00000000'),
            'email' => Crypt::encryptString('[email protected]'),
            'telefone' => '000000000', 
            'endereco' => 'nao tem', 
            'numero' => '90', 
            'complemento' => NULL, 
            'bairro' => 'nao tem', 
            'cidade' => 'nao tem', 
            'estado' => 'AC', 
            'cep' => '0000000000', 
            'celular' => NULL, 
            'password' => '$2y$10$kOAYngEkkn30WFwtePAX1ODrNNXtuCA0AKt9yhJSnZYFcqIVoj5LK', 
            'email_verified_at' => NULL, 
            'remember_token' => NULL 
        ]);
    }
}

Seed of registrations:

<?php

namespace Database\Seeders;

use Illuminate\Database\Seeder;
use Illuminate\Support\Facades\Crypt;
use App\Models\Matriculas;

class MatriculasSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        Matriculas::create([
            'matricula' => 100005,
            'nivel_acesso' => 1,
            'jornada' => 40,
            'bloqueado' => 0,
            'aprovado' => 1,
            'cpf' => Crypt::encryptString('000000'),
            'data_admissao' => '1999-11-09', 
            'cargo' => 'Administrador'
        ]);

        Matriculas::create([
            'matricula' => 100006,
            'nivel_acesso' => 1,
            'jornada' => 44,
            'bloqueado' => 0,
            'aprovado' => 1,
            'cpf' => Crypt::encryptString('000000'),
            'data_admissao' => '2003-06-06',  
            'cargo' => 'Administrador'
        ]);

        Matriculas::create([
            'matricula' => 100007,
            'nivel_acesso' => 1,
            'jornada' => 35,
            'bloqueado' => 0,
            'aprovado' => 1,
            'cpf' => Crypt::encryptString('00000000'),
            'data_admissao' => '2002-11-11',
            'cargo' => 'Administrador'
        ]);
    }
}

A Disclaimer is that the registrations are in a separate table because a CPF may have more than one registration