1 | /* |
---|---|
2 | * Copyright 1995-2016 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 | #include <stdio.h> |
11 | #include <string.h> |
12 | #include <openssl/crypto.h> |
13 | #include <openssl/sha.h> |
14 | |
15 | unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md) |
16 | { |
17 | SHA_CTX c; |
18 | static unsigned char m[SHA_DIGEST_LENGTH]; |
19 | |
20 | if (md == NULL) |
21 | md = m; |
22 | if (!SHA1_Init(&c)) |
23 | return NULL; |
24 | SHA1_Update(&c, d, n); |
25 | SHA1_Final(md, &c); |
26 | OPENSSL_cleanse(&c, sizeof(c)); |
27 | return md; |
28 | } |
29 |