1=pod 2 3=head1 NAME 4 5EVP_CIPHER-AES - The AES EVP_CIPHER implementations 6 7=head1 DESCRIPTION 8 9Support for AES symmetric encryption using the B<EVP_CIPHER> API. 10 11=head2 Algorithm Names 12 13The following algorithms are available in the FIPS provider as well as the 14default provider: 15 16=over 4 17 18=item "AES-128-CBC", "AES-192-CBC" and "AES-256-CBC" 19 20=item "AES-128-CBC-CTS", "AES-192-CBC-CTS" and "AES-256-CBC-CTS" 21 22=item "AES-128-CFB", "AES-192-CFB", "AES-256-CFB", 23"AES-128-CFB1", "AES-192-CFB1", "AES-256-CFB1", 24"AES-128-CFB8", "AES-192-CFB8" and "AES-256-CFB8" 25 26=item "AES-128-CTR", "AES-192-CTR" and "AES-256-CTR" 27 28=item "AES-128-ECB", "AES-192-ECB" and "AES-256-ECB" 29 30=item "AES-192-OFB", "AES-128-OFB" and "AES-256-OFB" 31 32=item "AES-128-XTS" and "AES-256-XTS" 33 34=item "AES-128-CCM", "AES-192-CCM" and "AES-256-CCM" 35 36=item "AES-128-GCM", "AES-192-GCM" and "AES-256-GCM" 37 38=item "AES-128-WRAP", "AES-192-WRAP", "AES-256-WRAP", 39"AES-128-WRAP-PAD", "AES-192-WRAP-PAD", "AES-256-WRAP-PAD", 40"AES-128-WRAP-INV", "AES-192-WRAP-INV", "AES-256-WRAP-INV", 41"AES-128-WRAP-PAD-INV", "AES-192-WRAP-PAD-INV" and "AES-256-WRAP-PAD-INV" 42 43=item "AES-128-CBC-HMAC-SHA1", "AES-256-CBC-HMAC-SHA1", 44"AES-128-CBC-HMAC-SHA256" and "AES-256-CBC-HMAC-SHA256" 45 46=back 47 48The following algorithms are available in the default provider, but not the 49FIPS provider: 50 51=over 4 52 53=item "AES-128-OCB", "AES-192-OCB" and "AES-256-OCB" 54 55=item "AES-128-SIV", "AES-192-SIV" and "AES-256-SIV" 56 57=back 58 59=head2 Parameters 60 61This implementation supports the parameters described in 62L<EVP_EncryptInit(3)/PARAMETERS>. 63 64=head1 NOTES 65 66The AES-SIV and AES-WRAP mode implementations do not support streaming. That 67means to obtain correct results there can be only one L<EVP_EncryptUpdate(3)> 68or L<EVP_DecryptUpdate(3)> call after the initialization of the context. 69 70The AES-XTS implementations allow streaming to be performed, but each 71L<EVP_EncryptUpdate(3)> or L<EVP_DecryptUpdate(3)> call requires each input 72to be a multiple of the blocksize. Only the final EVP_EncryptUpdate() or 73EVP_DecryptUpdate() call can optionally have an input that is not a multiple 74of the blocksize but is larger than one block. In that case ciphertext 75stealing (CTS) is used to fill the block. 76 77=head1 SEE ALSO 78 79L<provider-cipher(7)>, L<OSSL_PROVIDER-FIPS(7)>, L<OSSL_PROVIDER-default(7)> 80 81=head1 COPYRIGHT 82 83Copyright 2021-2022 The OpenSSL Project Authors. All Rights Reserved. 84 85Licensed under the Apache License 2.0 (the "License"). You may not use 86this file except in compliance with the License. You can obtain a copy 87in the file LICENSE in the source distribution or at 88L<https://www.openssl.org/source/license.html>. 89 90=cut 91