projects / thirdparty / openssl.git / blame
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|---|---|---|
| bbda8ce9 RT |
1 | =pod |
| 2 | ||
| 3 | =head1 NAME | |
| 4 | ||
| 5 | EVP_sha1 | |
| 6 | - SHA-1 For EVP | |
| 7 | ||
| 8 | =head1 SYNOPSIS | |
| 9 | ||
| 10 | #include <openssl/evp.h> | |
| 11 | ||
| 12 | const EVP_MD *EVP_sha1(void); | |
| 13 | ||
| 14 | =head1 DESCRIPTION | |
| 15 | ||
| 16 | SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function standardized | |
| 17 | in NIST FIPS 180-4. The algorithm was designed by the United States National | |
| 18 | Security Agency and initially published in 1995. | |
| 19 | ||
| 20 | =over 4 | |
| 21 | ||
| 22 | =item EVP_sha1() | |
| 23 | ||
| 24 | The SHA-1 algorithm which produces a 160-bit output from a given input. | |
| 25 | ||
| 26 | =back | |
| 27 | ||
| 28 | ||
| 29 | =head1 RETURN VALUES | |
| 30 | ||
| 31 | These functions return a B<EVP_MD> structure that contains the | |
| 32 | implementation of the symmetric cipher. See L<EVP_MD_meth_new(3)> for | |
| 33 | details of the B<EVP_MD> structure. | |
| 34 | ||
| 35 | =head1 CONFORMING TO | |
| 36 | ||
| 37 | NIST FIPS 180-4. | |
| 38 | ||
| 39 | =head1 SEE ALSO | |
| 40 | ||
| 41 | L<evp(7)>, | |
| 42 | L<EVP_DigestInit(3)> | |
| 43 | ||
| 44 | =head1 COPYRIGHT | |
| 45 | ||
| 46 | Copyright 2017 The OpenSSL Project Authors. All Rights Reserved. | |
| 47 | ||
| 4746f25a | 48 | Licensed under the Apache License 2.0 (the "License"). You may not use |
| bbda8ce9 RT |
49 | this file except in compliance with the License. You can obtain a copy |
| 50 | in the file LICENSE in the source distribution or at | |
| 51 | L<https://www.openssl.org/source/license.html>. | |
| 52 | ||
| 53 | =cut | |
| 54 |