10 #include <openssl/evp.h>
12 const EVP_MD *EVP_sha1(void);
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.
24 The SHA-1 algorithm which produces a 160-bit output from a given input.
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.
46 Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
48 Licensed under the Apache License 2.0 (the "License"). You may not use
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>.