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openssl-3.4.1: Applied our changes, regenerated files, added missing files and functions. This time with a three way merge. bugref:10890
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| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | EVP_CIPHER-SM4 - The SM4 EVP_CIPHER implementations
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| 6 |
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| 7 | =head1 DESCRIPTION
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| 8 |
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| 9 | Support for SM4 symmetric encryption using the B<EVP_CIPHER> API.
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| 10 |
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| 11 | =head2 Algorithm Names
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| 12 |
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| 13 | The following algorithms are available in the default provider:
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| 14 |
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| 15 | =over 4
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| 16 |
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| 17 | =item "SM4-CBC:SM4"
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| 18 |
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| 19 | =item "SM4-ECB"
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| 20 |
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| 21 | =item "SM4-CTR"
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| 22 |
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| 23 | =item "SM4-OFB" or "SM4-OFB128"
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| 24 |
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| 25 | =item "SM4-CFB" or "SM4-CFB128"
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| 26 |
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| 27 | =item "SM4-GCM"
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| 28 |
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| 29 | =item "SM4-CCM"
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| 30 |
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| 31 | =item "SM4-XTS"
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| 32 |
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| 33 | =back
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| 34 |
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| 35 | =head2 Parameters
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| 36 |
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| 37 | This implementation supports the parameters described in
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| 38 | L<EVP_EncryptInit(3)/PARAMETERS>.
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| 39 |
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| 40 | =head1 NOTES
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| 41 |
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| 42 | The SM4-XTS implementation allows streaming to be performed, but each
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| 43 | L<EVP_EncryptUpdate(3)> or L<EVP_DecryptUpdate(3)> call requires each input
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| 44 | to be a multiple of the blocksize. Only the final EVP_EncryptUpdate() or
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| 45 | EVP_DecryptUpdate() call can optionally have an input that is not a multiple
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| 46 | of the blocksize but is larger than one block. In that case ciphertext
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| 47 | stealing (CTS) is used to fill the block.
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| 48 |
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| 49 | =head1 SEE ALSO
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| 50 |
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| 51 | L<provider-cipher(7)>, L<OSSL_PROVIDER-default(7)>
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| 52 |
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| 53 | =head1 COPYRIGHT
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| 54 |
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| 55 | Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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| 56 |
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| 57 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 58 | this file except in compliance with the License. You can obtain a copy
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| 59 | in the file LICENSE in the source distribution or at
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| 60 | L<https://www.openssl.org/source/license.html>.
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| 61 |
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| 62 | =cut
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