.. index:: single: aes_common(KeySize,Nk,Nr)
.. _aes_common/3:

.. rst-class:: right

**object**

``aes_common(KeySize,Nk,Nr)``
=============================

* ``KeySize`` - Key size in bytes.
* ``Nk`` - Key size in 32-bit words.
* ``Nr`` - Number of encryption rounds.


AES block cipher implementation shared by the AES-128, AES-192, and AES-256 objects.

| **Availability:** 
|    ``logtalk_load(block_ciphers(loader))``

| **Author:** Paulo Moura
| **Version:** 1:0:0
| **Date:** 2026-08-03

| **Compilation flags:**
|    ``static, context_switching_calls``


| **Implements:**
|    ``public`` :ref:`block_cipher_prepared_key_protocol <block_cipher_prepared_key_protocol/0>`
| **Uses:**
|    :ref:`list <list/0>`
|    :ref:`type <type/0>`

| **Remarks:**
|    (none)

| **Inherited public predicates:**
|     :ref:`block_cipher_protocol/0::block_size/1`  :ref:`block_cipher_protocol/0::decrypt_block/3`  :ref:`block_cipher_prepared_key_protocol/0::decrypt_prepared_block/3`  :ref:`block_cipher_protocol/0::encrypt_block/3`  :ref:`block_cipher_prepared_key_protocol/0::encrypt_prepared_block/3`  :ref:`block_cipher_protocol/0::key_size/1`  :ref:`block_cipher_prepared_key_protocol/0::prepare_key/2`  

.. contents::
   :local:
   :backlinks: top

Public predicates
-----------------

(no local declarations; see entity ancestors if any)

Protected predicates
--------------------

(no local declarations; see entity ancestors if any)

Private predicates
------------------

(no local declarations; see entity ancestors if any)

Operators
---------

(none)