openssl/crypto/sha/sha1_one.c

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2023-05-09 22:08:48 +00:00
/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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
*/
#include <stdio.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/sha.h>
unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
{
SHA_CTX c;
static unsigned char m[SHA_DIGEST_LENGTH];
if (md == NULL)
md = m;
if (!SHA1_Init(&c))
return NULL;
SHA1_Update(&c, d, n);
SHA1_Final(md, &c);
OPENSSL_cleanse(&c, sizeof(c));
return md;
}