1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 "internal/cryptlib.h"
12#include <openssl/md2.h>
13
14/*
15 * This is a separate file so that #defines in cryptlib.h can map my MD
16 * functions to different names
17 */
18
19unsigned char *MD2(const unsigned char *d, size_t n, unsigned char *md)
20{
21    MD2_CTX c;
22    static unsigned char m[MD2_DIGEST_LENGTH];
23
24    if (md == NULL)
25        md = m;
26    if (!MD2_Init(&c))
27        return NULL;
28#ifndef CHARSET_EBCDIC
29    MD2_Update(&c, d, n);
30#else
31    {
32        char temp[1024];
33        unsigned long chunk;
34
35        while (n > 0) {
36            chunk = (n > sizeof(temp)) ? sizeof(temp) : n;
37            ebcdic2ascii(temp, d, chunk);
38            MD2_Update(&c, temp, chunk);
39            n -= chunk;
40            d += chunk;
41        }
42    }
43#endif
44    MD2_Final(md, &c);
45    OPENSSL_cleanse(&c, sizeof(c)); /* Security consideration */
46    return md;
47}
48