projects / thirdparty / openssl.git / blame
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1 | =pod |
| 2 | ||
| 3 | =head1 NAME | |
| 4 | ||
| 5 | EVP_md2 | |
| 6 | - MD2 For EVP | |
| 7 | ||
| 8 | =head1 SYNOPSIS | |
| 9 | ||
| 10 | #include <openssl/evp.h> | |
| 11 | ||
| 12 | const EVP_MD *EVP_md2(void); | |
| 13 | ||
| 14 | =head1 DESCRIPTION | |
| 15 | ||
| 16 | MD2 is a cryptographic hash function standardized in RFC 1319 and designed by | |
| 0f6c3ebb | 17 | Ronald Rivest. This implementation is only available with the legacy provider. |
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18 | |
| 19 | =over 4 | |
| 20 | ||
| 21 | =item EVP_md2() | |
| 22 | ||
| 23 | The MD2 algorithm which produces a 128-bit output from a given input. | |
| 24 | ||
| 25 | =back | |
| 26 | ||
| e798248c | 27 | =head1 NOTES |
| 28 | ||
| 29 | Developers should be aware of the negative performance implications of | |
| 30 | calling this function multiple times and should consider using | |
| b6eb95fa | 31 | L<EVP_MD_fetch(3)> with L<EVP_MD-MD2(7)> instead. |
| e798248c | 32 | See L<crypto(7)/Performance> for further information. |
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33 | |
| 34 | =head1 RETURN VALUES | |
| 35 | ||
| 36 | These functions return a B<EVP_MD> structure that contains the | |
| ae2efd63 | 37 | implementation of the message digest. See L<EVP_MD_meth_new(3)> for |
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38 | details of the B<EVP_MD> structure. |
| 39 | ||
| 40 | =head1 CONFORMING TO | |
| 41 | ||
| 42 | IETF RFC 1319. | |
| 43 | ||
| 44 | =head1 SEE ALSO | |
| 45 | ||
| 46 | L<evp(7)>, | |
| 0f6c3ebb | 47 | L<provider(7)>, |
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48 | L<EVP_DigestInit(3)> |
| 49 | ||
| 50 | =head1 COPYRIGHT | |
| 51 | ||
| da1c088f | 52 | Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved. |
| bbda8ce9 | 53 | |
| 4746f25a | 54 | Licensed under the Apache License 2.0 (the "License"). You may not use |
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55 | this file except in compliance with the License. You can obtain a copy |
| 56 | in the file LICENSE in the source distribution or at | |
| 57 | L<https://www.openssl.org/source/license.html>. | |
| 58 | ||
| 59 | =cut | |
| 60 |