1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
#ifndef softaes_H
#define softaes_H 1
#include <stdint.h>
#include "private/common.h"
typedef struct SoftAesBlock {
uint32_t w0;
uint32_t w1;
uint32_t w2;
uint32_t w3;
} SoftAesBlock;
SoftAesBlock softaes_block_encrypt(const SoftAesBlock block, const SoftAesBlock rk);
static inline SoftAesBlock
softaes_block_load(const uint8_t in[16])
{
const SoftAesBlock out = { LOAD32_LE(in + 0), LOAD32_LE(in + 4), LOAD32_LE(in + 8),
LOAD32_LE(in + 12) };
return out;
}
static inline SoftAesBlock
softaes_block_load64x2(const uint64_t a, const uint64_t b)
{
const SoftAesBlock out = { (uint32_t) b, (uint32_t) (b >> 32), (uint32_t) a,
(uint32_t) (a >> 32) };
return out;
}
static inline void
softaes_block_store(uint8_t out[16], const SoftAesBlock in)
{
STORE32_LE(out + 0, in.w0);
STORE32_LE(out + 4, in.w1);
STORE32_LE(out + 8, in.w2);
STORE32_LE(out + 12, in.w3);
}
static inline SoftAesBlock
softaes_block_xor(const SoftAesBlock a, const SoftAesBlock b)
{
const SoftAesBlock out = { a.w0 ^ b.w0, a.w1 ^ b.w1, a.w2 ^ b.w2, a.w3 ^ b.w3 };
return out;
}
static inline SoftAesBlock
softaes_block_and(const SoftAesBlock a, const SoftAesBlock b)
{
const SoftAesBlock out = { a.w0 & b.w0, a.w1 & b.w1, a.w2 & b.w2, a.w3 & b.w3 };
return out;
}
#endif
|
