The code is not working with 256 bit key about aes HOT 3 CLOSED

That is not a helpful comment since you give no details of the circumstances in which the code is not working. On what system are you using the code, what compiler are you using, what configuration are you using, do all the standard tests pass? What are the details of the failure you are experiencing?

from aes.

Thanks for consideration and sorry for not providing the details. I wish to use AES with 256 bit key. I have initialized the key by using the function aes_encrypt_key256 for encryption and aes_decrypt_key256 for decryption and used input/output buffer with 32 byte long array since key is 32 byte long. The result was loss of data. Subsequently I checked the project details and found that aes_encrypt() and aes_decrypt() is coded for 16 byte long input array.

from aes.

The aes_encrypt_key256 and aes_decrypt_key256 functions both handle 32 byte input buffers without any data loss. The aes_encrypt and aes_decrypt functions both have fixed length 16 byte buffers that are used for the input and output of data to be encrypted or decrypted. These functions are NOT used for key input and do not therefore limit or cause any loss of key data.

from aes.