man > EVP_CIPHER-AES(7)

EVP_CIPHER-AES(7SSL)                           OpenSSL                          EVP_CIPHER-AES(7SSL)

NAME
       EVP_CIPHER-AES - The AES EVP_CIPHER implementations

DESCRIPTION
       Support for AES symmetric encryption using the EVP_CIPHER API.

   Algorithm Names
       The following algorithms are available in the FIPS provider as well as the default provider:

       "AES-128-CBC", "AES-192-CBC" and  "AES-256-CBC"
       "AES-128-CBC-CTS", "AES-192-CBC-CTS" and "AES-256-CBC-CTS"
       "AES-128-CFB", "AES-192-CFB", "AES-256-CFB", "AES-128-CFB1", "AES-192-CFB1", "AES-256-CFB1",
       "AES-128-CFB8", "AES-192-CFB8" and "AES-256-CFB8"
       "AES-128-CTR", "AES-192-CTR" and "AES-256-CTR"
       "AES-128-ECB", "AES-192-ECB" and "AES-256-ECB"
       "AES-192-OFB", "AES-128-OFB" and "AES-256-OFB"
       "AES-128-XTS" and "AES-256-XTS"
       "AES-128-CCM", "AES-192-CCM" and "AES-256-CCM"
       "AES-128-GCM", "AES-192-GCM" and "AES-256-GCM"
       "AES-128-WRAP", "AES-192-WRAP", "AES-256-WRAP", "AES-128-WRAP-PAD", "AES-192-WRAP-PAD",
       "AES-256-WRAP-PAD", "AES-128-WRAP-INV", "AES-192-WRAP-INV", "AES-256-WRAP-INV",
       "AES-128-WRAP-PAD-INV", "AES-192-WRAP-PAD-INV" and "AES-256-WRAP-PAD-INV"
       "AES-128-CBC-HMAC-SHA1", "AES-256-CBC-HMAC-SHA1", "AES-128-CBC-HMAC-SHA256" and
       "AES-256-CBC-HMAC-SHA256"

       The following algorithms are available in the default provider, but not the FIPS provider:

       "AES-128-OCB", "AES-192-OCB" and "AES-256-OCB"
       "AES-128-SIV", "AES-192-SIV" and "AES-256-SIV"

   Parameters
       This implementation supports the parameters described in "PARAMETERS" in EVP_EncryptInit(3).

NOTES
       The  AES-SIV and AES-WRAP mode implementations do not support streaming. That means to obtain
       correct results there can be only one EVP_EncryptUpdate(3) or EVP_DecryptUpdate(3) call after
       the initialization of the context.

       The AES-XTS implementations allow streaming to be performed, but each EVP_EncryptUpdate(3) or
       EVP_DecryptUpdate(3) call requires each input to be a multiple of  the  blocksize.  Only  the
       final  EVP_EncryptUpdate()  or  EVP_DecryptUpdate() call can optionally have an input that is
       not a multiple of the blocksize but is  larger  than  one  block.  In  that  case  ciphertext
       stealing (CTS) is used to fill the block.

SEE ALSO
       provider-cipher(7), OSSL_PROVIDER-FIPS(7), OSSL_PROVIDER-default(7)

COPYRIGHT
       Copyright 2021-2022 The OpenSSL Project Authors. All Rights Reserved.

       Licensed  under  the Apache License 2.0 (the "License").  You may not use this file except in
       compliance with the License.  You can obtain a  copy  in  the  file  LICENSE  in  the  source
       distribution or at <https://www.openssl.org/source/license.html>.

3.0.13                                       2026-07-29                         EVP_CIPHER-AES(7SSL)