EVP_sha1 - SHA-1 For EVP
#include <openssl/evp.h>
const EVP_MD *EVP_sha1(void);
SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function standardized in
NIST FIPS 180-4. The algorithm was designed by the United States National
Security Agency and initially published in 1995.
- EVP_sha1()
- The SHA-1 algorithm which produces a 160-bit output from a
given input.
Developers should be aware of the negative performance implications of calling
this function multiple times and should consider using
EVP_MD_fetch(3)
with
EVP_MD-SHA1(7) instead. See "Performance" in
crypto(7) for further information.
These functions return a
EVP_MD structure that contains the
implementation of the message digest. See
EVP_MD_meth_new(3) for
details of the
EVP_MD structure.
NIST FIPS 180-4.
evp(7),
EVP_DigestInit(3)
Copyright 2017-2023 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy in the
file LICENSE in the source distribution or at
<
https://www.openssl.org/source/license.html>.