1/*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/*
11 * SHA-1 low level APIs are deprecated for public use, but still ok for
12 * internal use.
13 */
14#include "internal/deprecated.h"
15
16#include <stdio.h>
17#include <string.h>
18#include <openssl/crypto.h>
19#include <openssl/sha.h>
20#include <openssl/evp.h>
21#include "crypto/sha.h"
22
23unsigned char *ossl_sha1(const unsigned char *d, size_t n, unsigned char *md)
24{
25    SHA_CTX c;
26    static unsigned char m[SHA_DIGEST_LENGTH];
27
28    if (md == NULL)
29        md = m;
30    if (!SHA1_Init(&c))
31        return NULL;
32    SHA1_Update(&c, d, n);
33    SHA1_Final(md, &c);
34    OPENSSL_cleanse(&c, sizeof(c));
35    return md;
36}
37
38unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md)
39{
40    static unsigned char m[SHA_DIGEST_LENGTH];
41
42    if (md == NULL)
43        md = m;
44    return EVP_Q_digest(NULL, "SHA1", NULL, d, n, md, NULL) ? md : NULL;
45}
46
47unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md)
48{
49    static unsigned char m[SHA224_DIGEST_LENGTH];
50
51    if (md == NULL)
52        md = m;
53    return EVP_Q_digest(NULL, "SHA224", NULL, d, n, md, NULL) ? md : NULL;
54}
55
56unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md)
57{
58    static unsigned char m[SHA256_DIGEST_LENGTH];
59
60    if (md == NULL)
61        md = m;
62    return EVP_Q_digest(NULL, "SHA256", NULL, d, n, md, NULL) ? md : NULL;
63}
64
65unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md)
66{
67    static unsigned char m[SHA384_DIGEST_LENGTH];
68
69    if (md == NULL)
70        md = m;
71    return EVP_Q_digest(NULL, "SHA384", NULL, d, n, md, NULL) ? md : NULL;
72}
73
74unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md)
75{
76    static unsigned char m[SHA512_DIGEST_LENGTH];
77
78    if (md == NULL)
79        md = m;
80    return EVP_Q_digest(NULL, "SHA512", NULL, d, n, md, NULL) ? md : NULL;
81}
82