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Side by Side Diff: fusl/src/crypt/encrypt.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
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1 #include <stdint.h> 1 #include <stdint.h>
2 #include <stdlib.h> 2 #include <stdlib.h>
3 #include <unistd.h> 3 #include <unistd.h>
4 4
5 struct expanded_key { 5 struct expanded_key {
6 uint32_t l[16], r[16]; 6 uint32_t l[16], r[16];
7 }; 7 };
8 8
9 void __des_setkey(const unsigned char *key, struct expanded_key *ekey); 9 void __des_setkey(const unsigned char* key, struct expanded_key* ekey);
10 void __do_des(uint32_t l_in, uint32_t r_in, 10 void __do_des(uint32_t l_in,
11 uint32_t *l_out, uint32_t *r_out, 11 uint32_t r_in,
12 uint32_t count, uint32_t saltbits, const struct expanded_key *ekey); 12 uint32_t* l_out,
13 13 uint32_t* r_out,
14 uint32_t count,
15 uint32_t saltbits,
16 const struct expanded_key* ekey);
14 17
15 static struct expanded_key __encrypt_key; 18 static struct expanded_key __encrypt_key;
16 19
17 void setkey(const char *key) 20 void setkey(const char* key) {
18 { 21 unsigned char bkey[8];
19 » unsigned char bkey[8]; 22 int i, j;
20 » int i, j;
21 23
22 » for (i = 0; i < 8; i++) { 24 for (i = 0; i < 8; i++) {
23 » » bkey[i] = 0; 25 bkey[i] = 0;
24 » » for (j = 7; j >= 0; j--, key++) 26 for (j = 7; j >= 0; j--, key++)
25 » » » bkey[i] |= (uint32_t)(*key & 1) << j; 27 bkey[i] |= (uint32_t)(*key & 1) << j;
26 » } 28 }
27 29
28 » __des_setkey(bkey, &__encrypt_key); 30 __des_setkey(bkey, &__encrypt_key);
29 } 31 }
30 32
31 void encrypt(char *block, int edflag) 33 void encrypt(char* block, int edflag) {
32 { 34 struct expanded_key decrypt_key, *key;
33 » struct expanded_key decrypt_key, *key; 35 uint32_t b[2];
34 » uint32_t b[2]; 36 int i, j;
35 » int i, j; 37 char* p;
36 » char *p;
37 38
38 » p = block; 39 p = block;
39 » for (i = 0; i < 2; i++) { 40 for (i = 0; i < 2; i++) {
40 » » b[i] = 0; 41 b[i] = 0;
41 » » for (j = 31; j >= 0; j--, p++) 42 for (j = 31; j >= 0; j--, p++)
42 » » » b[i] |= (uint32_t)(*p & 1) << j; 43 b[i] |= (uint32_t)(*p & 1) << j;
43 » } 44 }
44 45
45 » key = &__encrypt_key; 46 key = &__encrypt_key;
46 » if (edflag) { 47 if (edflag) {
47 » » key = &decrypt_key; 48 key = &decrypt_key;
48 » » for (i = 0; i < 16; i++) { 49 for (i = 0; i < 16; i++) {
49 » » » decrypt_key.l[i] = __encrypt_key.l[15-i]; 50 decrypt_key.l[i] = __encrypt_key.l[15 - i];
50 » » » decrypt_key.r[i] = __encrypt_key.r[15-i]; 51 decrypt_key.r[i] = __encrypt_key.r[15 - i];
51 » » } 52 }
52 » } 53 }
53 54
54 » __do_des(b[0], b[1], b, b + 1, 1, 0, key); 55 __do_des(b[0], b[1], b, b + 1, 1, 0, key);
55 56
56 » p = block; 57 p = block;
57 » for (i = 0; i < 2; i++) 58 for (i = 0; i < 2; i++)
58 » » for (j = 31; j >= 0; j--) 59 for (j = 31; j >= 0; j--)
59 » » » *p++ = b[i]>>j & 1; 60 *p++ = b[i] >> j & 1;
60 } 61 }
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