OpenCoverage

str2key.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/des/str2key.c
Source codeSwitch to Preprocessed file
LineSourceCount
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 <openssl/crypto.h>-
11#include "des_locl.h"-
12-
13void DES_string_to_key(const char *str, DES_cblock *key)-
14{-
15 DES_key_schedule ks;-
16 int i, length;-
17-
18 memset(key, 0, 8);-
19 length = strlen(str);-
20 for (i = 0; i < length; i++) {
i < lengthDescription
TRUEnever evaluated
FALSEnever evaluated
0
21 register unsigned char j = str[i];-
22-
23 if ((i % 16) < 8)
(i % 16) < 8Description
TRUEnever evaluated
FALSEnever evaluated
0
24 (*key)[i % 8] ^= (j << 1);
never executed: (*key)[i % 8] ^= (j << 1);
0
25 else {-
26 /* Reverse the bit order 05/05/92 eay */-
27 j = ((j << 4) & 0xf0) | ((j >> 4) & 0x0f);-
28 j = ((j << 2) & 0xcc) | ((j >> 2) & 0x33);-
29 j = ((j << 1) & 0xaa) | ((j >> 1) & 0x55);-
30 (*key)[7 - (i % 8)] ^= j;-
31 }
never executed: end of block
0
32 }-
33 DES_set_odd_parity(key);-
34 DES_set_key_unchecked(key, &ks);-
35 DES_cbc_cksum((const unsigned char *)str, key, length, &ks, key);-
36 OPENSSL_cleanse(&ks, sizeof(ks));-
37 DES_set_odd_parity(key);-
38}
never executed: end of block
0
39-
40void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2)-
41{-
42 DES_key_schedule ks;-
43 int i, length;-
44-
45 memset(key1, 0, 8);-
46 memset(key2, 0, 8);-
47 length = strlen(str);-
48 for (i = 0; i < length; i++) {
i < lengthDescription
TRUEnever evaluated
FALSEnever evaluated
0
49 register unsigned char j = str[i];-
50-
51 if ((i % 32) < 16) {
(i % 32) < 16Description
TRUEnever evaluated
FALSEnever evaluated
0
52 if ((i % 16) < 8)
(i % 16) < 8Description
TRUEnever evaluated
FALSEnever evaluated
0
53 (*key1)[i % 8] ^= (j << 1);
never executed: (*key1)[i % 8] ^= (j << 1);
0
54 else-
55 (*key2)[i % 8] ^= (j << 1);
never executed: (*key2)[i % 8] ^= (j << 1);
0
56 } else {-
57 j = ((j << 4) & 0xf0) | ((j >> 4) & 0x0f);-
58 j = ((j << 2) & 0xcc) | ((j >> 2) & 0x33);-
59 j = ((j << 1) & 0xaa) | ((j >> 1) & 0x55);-
60 if ((i % 16) < 8)
(i % 16) < 8Description
TRUEnever evaluated
FALSEnever evaluated
0
61 (*key1)[7 - (i % 8)] ^= j;
never executed: (*key1)[7 - (i % 8)] ^= j;
0
62 else-
63 (*key2)[7 - (i % 8)] ^= j;
never executed: (*key2)[7 - (i % 8)] ^= j;
0
64 }-
65 }-
66 if (length <= 8)
length <= 8Description
TRUEnever evaluated
FALSEnever evaluated
0
67 memcpy(key2, key1, 8);
never executed: memcpy(key2, key1, 8);
0
68 DES_set_odd_parity(key1);-
69 DES_set_odd_parity(key2);-
70 DES_set_key_unchecked(key1, &ks);-
71 DES_cbc_cksum((const unsigned char *)str, key1, length, &ks, key1);-
72 DES_set_key_unchecked(key2, &ks);-
73 DES_cbc_cksum((const unsigned char *)str, key2, length, &ks, key2);-
74 OPENSSL_cleanse(&ks, sizeof(ks));-
75 DES_set_odd_parity(key1);-
76 DES_set_odd_parity(key2);-
77}
never executed: end of block
0
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