Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/openssl/src/crypto/cast/c_enc.c |
Source code | Switch to Preprocessed file |
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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/cast.h> | - | ||||||
11 | #include "cast_lcl.h" | - | ||||||
12 | - | |||||||
13 | void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key) | - | ||||||
14 | { | - | ||||||
15 | CAST_LONG l, r, t; | - | ||||||
16 | const CAST_LONG *k; | - | ||||||
17 | - | |||||||
18 | k = &(key->data[0]); | - | ||||||
19 | l = data[0]; | - | ||||||
20 | r = data[1]; | - | ||||||
21 | - | |||||||
22 | E_CAST(0, k, l, r, +, ^, -); | - | ||||||
23 | E_CAST(1, k, r, l, ^, -, +); | - | ||||||
24 | E_CAST(2, k, l, r, -, +, ^); | - | ||||||
25 | E_CAST(3, k, r, l, +, ^, -); | - | ||||||
26 | E_CAST(4, k, l, r, ^, -, +); | - | ||||||
27 | E_CAST(5, k, r, l, -, +, ^); | - | ||||||
28 | E_CAST(6, k, l, r, +, ^, -); | - | ||||||
29 | E_CAST(7, k, r, l, ^, -, +); | - | ||||||
30 | E_CAST(8, k, l, r, -, +, ^); | - | ||||||
31 | E_CAST(9, k, r, l, +, ^, -); | - | ||||||
32 | E_CAST(10, k, l, r, ^, -, +); | - | ||||||
33 | E_CAST(11, k, r, l, -, +, ^); | - | ||||||
34 | if (!key->short_key) {
| 2-4006285 | ||||||
35 | E_CAST(12, k, l, r, +, ^, -); | - | ||||||
36 | E_CAST(13, k, r, l, ^, -, +); | - | ||||||
37 | E_CAST(14, k, l, r, -, +, ^); | - | ||||||
38 | E_CAST(15, k, r, l, +, ^, -); | - | ||||||
39 | } executed 4006285 times by 1 test: end of block Executed by:
| 4006285 | ||||||
40 | - | |||||||
41 | data[1] = l & 0xffffffffL; | - | ||||||
42 | data[0] = r & 0xffffffffL; | - | ||||||
43 | } executed 4006287 times by 1 test: end of block Executed by:
| 4006287 | ||||||
44 | - | |||||||
45 | void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key) | - | ||||||
46 | { | - | ||||||
47 | CAST_LONG l, r, t; | - | ||||||
48 | const CAST_LONG *k; | - | ||||||
49 | - | |||||||
50 | k = &(key->data[0]); | - | ||||||
51 | l = data[0]; | - | ||||||
52 | r = data[1]; | - | ||||||
53 | - | |||||||
54 | if (!key->short_key) {
| 2-3145 | ||||||
55 | E_CAST(15, k, l, r, +, ^, -); | - | ||||||
56 | E_CAST(14, k, r, l, -, +, ^); | - | ||||||
57 | E_CAST(13, k, l, r, ^, -, +); | - | ||||||
58 | E_CAST(12, k, r, l, +, ^, -); | - | ||||||
59 | } executed 3145 times by 1 test: end of block Executed by:
| 3145 | ||||||
60 | E_CAST(11, k, l, r, -, +, ^); | - | ||||||
61 | E_CAST(10, k, r, l, ^, -, +); | - | ||||||
62 | E_CAST(9, k, l, r, +, ^, -); | - | ||||||
63 | E_CAST(8, k, r, l, -, +, ^); | - | ||||||
64 | E_CAST(7, k, l, r, ^, -, +); | - | ||||||
65 | E_CAST(6, k, r, l, +, ^, -); | - | ||||||
66 | E_CAST(5, k, l, r, -, +, ^); | - | ||||||
67 | E_CAST(4, k, r, l, ^, -, +); | - | ||||||
68 | E_CAST(3, k, l, r, +, ^, -); | - | ||||||
69 | E_CAST(2, k, r, l, -, +, ^); | - | ||||||
70 | E_CAST(1, k, l, r, ^, -, +); | - | ||||||
71 | E_CAST(0, k, r, l, +, ^, -); | - | ||||||
72 | - | |||||||
73 | data[1] = l & 0xffffffffL; | - | ||||||
74 | data[0] = r & 0xffffffffL; | - | ||||||
75 | } executed 3147 times by 1 test: end of block Executed by:
| 3147 | ||||||
76 | - | |||||||
77 | void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out, | - | ||||||
78 | long length, const CAST_KEY *ks, unsigned char *iv, | - | ||||||
79 | int enc) | - | ||||||
80 | { | - | ||||||
81 | register CAST_LONG tin0, tin1; | - | ||||||
82 | register CAST_LONG tout0, tout1, xor0, xor1; | - | ||||||
83 | register long l = length; | - | ||||||
84 | CAST_LONG tin[2]; | - | ||||||
85 | - | |||||||
86 | if (enc) {
| 159-228 | ||||||
87 | n2l(iv, tout0); | - | ||||||
88 | n2l(iv, tout1); | - | ||||||
89 | iv -= 8; | - | ||||||
90 | for (l -= 8; l >= 0; l -= 8) {
| 228-2358 | ||||||
91 | n2l(in, tin0); | - | ||||||
92 | n2l(in, tin1); | - | ||||||
93 | tin0 ^= tout0; | - | ||||||
94 | tin1 ^= tout1; | - | ||||||
95 | tin[0] = tin0; | - | ||||||
96 | tin[1] = tin1; | - | ||||||
97 | CAST_encrypt(tin, ks); | - | ||||||
98 | tout0 = tin[0]; | - | ||||||
99 | tout1 = tin[1]; | - | ||||||
100 | l2n(tout0, out); | - | ||||||
101 | l2n(tout1, out); | - | ||||||
102 | } executed 2358 times by 1 test: end of block Executed by:
| 2358 | ||||||
103 | if (l != -8) {
| 0-228 | ||||||
104 | n2ln(in, tin0, tin1, l + 8); never executed: end of block code before this statement never executed: case 7: code before this statement never executed: case 6: code before this statement never executed: case 5: code before this statement never executed: case 4: code before this statement never executed: case 3: code before this statement never executed: case 2: code before this statement never executed: case 1: never executed: case 8: never executed: case 7: never executed: case 6: never executed: case 5: never executed: case 4: never executed: case 3: never executed: case 2: never executed: case 1: | 0 | ||||||
105 | tin0 ^= tout0; | - | ||||||
106 | tin1 ^= tout1; | - | ||||||
107 | tin[0] = tin0; | - | ||||||
108 | tin[1] = tin1; | - | ||||||
109 | CAST_encrypt(tin, ks); | - | ||||||
110 | tout0 = tin[0]; | - | ||||||
111 | tout1 = tin[1]; | - | ||||||
112 | l2n(tout0, out); | - | ||||||
113 | l2n(tout1, out); | - | ||||||
114 | } never executed: end of block | 0 | ||||||
115 | l2n(tout0, iv); | - | ||||||
116 | l2n(tout1, iv); | - | ||||||
117 | } else { executed 228 times by 1 test: end of block Executed by:
| 228 | ||||||
118 | n2l(iv, xor0); | - | ||||||
119 | n2l(iv, xor1); | - | ||||||
120 | iv -= 8; | - | ||||||
121 | for (l -= 8; l >= 0; l -= 8) {
| 159-2358 | ||||||
122 | n2l(in, tin0); | - | ||||||
123 | n2l(in, tin1); | - | ||||||
124 | tin[0] = tin0; | - | ||||||
125 | tin[1] = tin1; | - | ||||||
126 | CAST_decrypt(tin, ks); | - | ||||||
127 | tout0 = tin[0] ^ xor0; | - | ||||||
128 | tout1 = tin[1] ^ xor1; | - | ||||||
129 | l2n(tout0, out); | - | ||||||
130 | l2n(tout1, out); | - | ||||||
131 | xor0 = tin0; | - | ||||||
132 | xor1 = tin1; | - | ||||||
133 | } executed 2358 times by 1 test: end of block Executed by:
| 2358 | ||||||
134 | if (l != -8) {
| 0-159 | ||||||
135 | n2l(in, tin0); | - | ||||||
136 | n2l(in, tin1); | - | ||||||
137 | tin[0] = tin0; | - | ||||||
138 | tin[1] = tin1; | - | ||||||
139 | CAST_decrypt(tin, ks); | - | ||||||
140 | tout0 = tin[0] ^ xor0; | - | ||||||
141 | tout1 = tin[1] ^ xor1; | - | ||||||
142 | l2nn(tout0, tout1, out, l + 8); never executed: end of block code before this statement never executed: case 7: code before this statement never executed: case 6: code before this statement never executed: case 5: code before this statement never executed: case 4: code before this statement never executed: case 3: code before this statement never executed: case 2: code before this statement never executed: case 1: never executed: case 8: never executed: case 7: never executed: case 6: never executed: case 5: never executed: case 4: never executed: case 3: never executed: case 2: never executed: case 1: | 0 | ||||||
143 | xor0 = tin0; | - | ||||||
144 | xor1 = tin1; | - | ||||||
145 | } never executed: end of block | 0 | ||||||
146 | l2n(xor0, iv); | - | ||||||
147 | l2n(xor1, iv); | - | ||||||
148 | } executed 159 times by 1 test: end of block Executed by:
| 159 | ||||||
149 | tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0; | - | ||||||
150 | tin[0] = tin[1] = 0; | - | ||||||
151 | } executed 387 times by 1 test: end of block Executed by:
| 387 | ||||||
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